22:15 BST - What an remarkable climax to the evening. Great Britain have won their second gold medal at the 2023 World Athletics Championships as Josh Kerr shattered his season's best in the 1,500m to win the title for the first time.
Elsewhere, Molly Caudery broke a personal best to finish fifth in the pole vault final - with USA's Katie Moon and Australia's Nina Kennedy opting to share gold - after Anna Purchase qualified for her maiden world final in the hammer throw.
We'll be back for more action tomorrow - see you then!
21:42 BST - A proud Josh Kerr said he threw everything at beating Jakob Ingebrigtsen in the final and claimed his gold medal was "a long time coming".
"I am so proud of myself. I am so proud of my team and my family - they got me here," he said. "I didn’t feel like I ran the best race either so I just threw my whole 16 years of this sport at that last 200m and didn’t give up until the end.
"I knew that I was capable of a World Championship gold medal for the team, so I am very proud to be able to add to that medal count today.
"We were both hurting - I was just like ‘I have wanted this for my whole life and I am not letting anyone get in the way of that’.
"I looked up at the screen, didn’t see anyone coming and I made sure I pumped all the way home. With 50m to go, I kind of broke him and it was just about holding form at that point," he added.
"I'd be proud - giving everything in that situation - if it was gold, silver or bronze. I've had the bronze and the gold is sweeter."
Kerr's teammate Neil Gourley tried to keep pace with front two but fell away on the final lap to finish ninth. "I tried to hang on but it didn’t quite happen in the last 200, it was a hard pace," he said. "I tried to go and there wasn’t a whole lot left I gave it my all."
21:31 BST - Molly Caudery has spoken of her pride and disbelief at breaking a personal best to finish fifth in a sensational pole vault final on Wednesday evening.
"A PB, Olympic qualifier, fifth in the world - my emotions are all over the place," she said. "It is just not settling in - what a night. I don’t have words for it.
"It was a bit of a pressure jump (at 4.75m). I used a slightly bigger pole, one that I haven’t used in a long time. I got the crowd behind me and I think that made the difference. I sped through the box and the jump after that - I came down on the mat and the bar was still there.
"I came in really wanting to make the final. If I made the final, anything else was a bonus - top eight would be great - but top five is amazing. I had an OK attempt at 4.80m and two run throughs at 4.85m - I was just a bit tired by then."
"I just want to keep doing more of what I am doing and solidifying that and jumping 4.70m and maybe raising it even more."
21:20 BST - GB's Anna Purchase has been giving her reaction to qualifying for the final in the hammer throw.
"My goal was to show up for myself and make sure I performed... to mentally prepare," she said. "So I was really happy with the way I showed up and it came down to the wire but I made it to the final!
"I train with such a good group that I’m really not intimidated by the big throwers that I used to watch on TV. I think it’s so cool to be in that environment and I really enjoyed myself, so I can’t ask for more."
21:53 BST - Norway's Karsten Warholm has won gold in the men's 400m hurdles. The Tokyo gold medallist is now a three-time world champion after dominating the race to finish ahead of Kyron McMaster and Rai Benjamin who took silver and bronze respectively.
Gold: Karsten Warholm (NOR), 46.89
Silver: Kyron McMaster (IVB), 47.34
Bronze: Rai Benjamin (USA), 47.56
20:35 BST - In the women's pole vault, after a red flag at her first attempt of 4.80m, Katie Moon clears 4.80 and joins Nina Kennedy at 4.85m.
Both then flew over 4.85m - a world-leading height! They can't be separated. Moon and Kennedy both go for 4.90m. After failing their first two attempts, they both clear with their third and final chance!
The bar is raised to 4.95m - this is remarkable! This is reminicent of Mutaz Barshim and Gianmarco Tamberi competing in the Tokyo 2020 final.
Moon fails at her third and final attempt and it's now over to Kennedy for gold. Can she clear it? No! Kennedy also fails with all three attempts.
Kennedy and Moon are now in conversation with the officials. They are equal on countback. Are we going to see the gold medal shared?
We are! Kennedy and Moon don't want to enter a jump-off and both are world champions!
Gold: Katie Moon (USA) and Nina Kennedy (AUS), 4.90m
Bronze: Wilma Murto (FIN), 4.80m
20:40 BST - In the women's 400m Marileidy Paulino stormed over the line to set a national record for the Dominican Republic and win her third world title! The double Olympic silver medallist finishes ahead of Poland's Natalia Kaczmarek and Barbados' Sada Williams who won bronze.
Gold: Marileidy Paulino (DOM), 48.76 NR
Silver: Natalia Kaczmarek (POL), 49.57
Bronze: Sada Williams (BAR), 49.60
20:30 BST - Anna Purchase has qualified for the final of the hammer throw! Her attempt at 71.31m fell below the qualifing mark of 75m but she won't be too fussed as the top 12 go through automatically.
20:10 BST - We're moments away from the men's 1,500m final. Can Neil Gourley or Josh Kerr do enough to beat Norway's current Olympic and world champion Jakob Ingebrigtsen?
They're off! Abel Kipsang takes the lead but Ingebrigtsen jostles for position and after 700m overtakes the Kenyan.
The bell rings and Kerr has moved from sixth and is just behind Ingebrigtsen! He's on his shoulder as they pull away from the field. This is going to be close. They race around the final 100 and Kerr has taken the lead - just!
There's 50 to go - can Kerr keep going? He pushes home... he's hanging on... and Kerr wins it! He screams in delight as he crosses the line. He clocks 3:29.28 - a season's best run! Incredible. Josh Kerr has just beaten Ingebrigtsen to win the gold!
After leading for so long it's another silver for the Norweigan, who agonisingly finished behind Jake Whiteman last year.
Gold: Josh Kerr (GBR), 3:29.38 SB
Silver: Jakob Ingebrigtsen (NOR), 3:29.65
Bronze: Narve Gilje Nordås (NOR), 3:29.68
19:58 BST - In the pole vault, Caudery fails at her first attempt of 4.85 and is nervously made to wait until the end of the 100m hurdles heat to continue. Nina Kennedy (AUS) and Katie Moon (USA) are currently leading.
This could be a medal-winning jump if she clears it. The crowd clap as she runs up... but she runs on to the mat and takes fifth place. She throws her hands in the air and soaks up the applause.
A superb performance from Caudery.
19:43 BST - Meanwhile Cindy Sember takes her place on the track and prepares for the semi-final of the women's 100m hurdles - can she become the first British athlete to reach the final tonight?
It's a fast race but Sember trails away after the second hurdle to finish sixth on 12.97, behind Ireland's Sarah Lavin who breaks a national record on 12.62. Both are far behind the winner - USA's Olympic silver medallist Kendra Harrison - who clocked 12.33.
19:40 BST - The bar is raised to 4.80m. What can Caudery do here? After failing with her first attempt and red flag on her second, the bar is increased to 4.85m.
19:35 BST - Molly Caudery has just smashed her personal best in the pole vault final! With her third and final attempt she stepped up and cleared 4.75m just when it matters most. She moves up to fourth!
19:29 BST - Megan Keith and Amy-Eloise Markovc have been giving their reaction after both failed to qualify for the 5,000m final.
"It's complicated because my gut reaction is to be disappointed with that based on my previous performances," Markovc said. "But on the other hand I have gone through a lot of changes over the past year and I have dealt with a lot of physical and mental stuff on and off the track.
"I am actually proud of myself which I know might sound a bit cheesy after a sub-par performance, but only we as athletes can know what we have dealt with."
"It was such a weird whirlwind," Keith said. "I was so excited to get here and race, but it was quite a slow race but it felt like the fastest a 5K has ever gone because there was not a dull moment in that race.
"It has been quite an incredible season. I have a lot to work on so I can come back and improve upon that. I am so happy with how I did but I have some work to do to try and compete better next time. I know that is a pace I am capable of, but I missed it as I got caught up in the whirlwind of it all.
"Twelve months ago me and my family were playing the fantasy predictions game for Oregon where you could try and win tickets to come and watch these Championships. We didn’t win those tickets but I’ve made it anyway. Quite a difference a year can make."
19:24 BST - Caudery has missed her first attempt at 4.75 and has two remaining. A huge roar in the stadium erupts as the European champion Wilma Murto (FIN) clears the height, before Tina Šutej (SLO) and Nina Kennedy (AUS) do the same! Oh the pressure.
19:09 BST - In the women's triple jump qualifier, Thea Lafond (DMA) lept 14.62 to break the national record! Lafond - who became the first athlete to win a medal for Dominica at the Commonwealth Games with bronze in 2018 - is looking to improve on her fifth-placed finish at the world's last year.
19:04 BST - Aimee Pratt has narrowly missed out on reaching the final of the 3,000m steeplechase, crossing the line seventh on 9:26.37. The 25-year-old also finished seventh in the world and European championships last year.
19:00 BST - In the pole vault, Caudery clattered her first attempt at 4.30 - but has since cleared 4.50m and 4.65m and is currently fifth.
She will need to break her personal best 4.71 to medal here, but it's an impressive performance to put her early red flag aside.
18:56 BST - Charlotte Payne misses out on qualifying for the hammer throw final. Her mark of 69.57 was not enough to be among the last 12, with a minimum throw of 73m required. Anna Purchase will be flying the flag for GB in the evening's second qualifier at 7.35pm.
18:53 BST - Over to the heats of the women's 3,000 steeplechase and whether Aimee Pratt can finish inside the top five to qualify for the final.
18:40 BST - The women's pole vault final is underway and GB's Molly Caudery clears the opening 4.30m at the second attempt.
18:27 BST - It's the second heat for the women's 5,000m - can GB's Amy-Eloise Markovc reach her maiden world championship final?
Markovc finished fourth at least year's Commonwealth Games and will most likely need to beat her season's best 15:28.66 to do so. In her heat is Kenya's Faith Kipyegon and Netherland's Sifan Hassan.
Hassan immediately takes the lead and begins to slowly pull away with 11 laps to go.
With seven laps to go and Hassan still leads the front pack with Markovc 13th - but there is an almost 10 second gap between Markovc and Mexico's Laura Galvan in 11th.
Three laps to go. Hassan leads from Kipyegon in a front pack of seven. It's a superb race from the Dutch star. The bell rings for the final lap and with 400 to go Hassan surges ahead as Kenya's Lilian Kasait Rengeruk trips, but recovers to re-join the race.
Hassan narrowly takes the win ahead of Kipyegon. Rengeruk - despite the late scare - qualifies in fifth.
Japan's Nozomi Tanaka (14:37.98) and Galvan (14:43.94) break national records to qualify. Markovc crosses the line with a season's best 15:13.66 but fails to make the cut in 11th.
18:02 BST - And we're underway in the first heat for the women's 5,000m - 12 laps of the National Athletics Centre.
Latvia's Agate Caune has stormed out in front with the rest of the pack sitting back. The U20 European champion is almost 10 seconds ahead with nine laps to go!
Caune has seen her lead increase from 16 to 20 seconds. Keith is currently 10th with six laps to go.
There are four laps to go and Keith is second, but with the Kenyans and Ethiopians positioned behind her, has she done enough? The pack are picking up the pace and Caune looks to be struggling. We're on to the last lap!
Caune is overtaken with 200 to go but crosses the line in fourth - an incredible run. She clocks a personal best 15:00.48
It's a disappointing finish for Keith, the European U23 champion, who fails to qualify for the final on 15:21.94.
18:00 BST - The heats for the women's 5,000m - originally scheduled for the morning, but delayed because of the hot weather in Budapest - is about to start. Can GB's Megan Keith (heat one) and Amy-Eloise Markovc (heat two) qualify for the final?
To do so, they need to finish in the top eight. There will be no fastest runners-up.
17:45 BST - Qualification for the women's hammer throw will get tonight's action getting underway in 15 minutes, but before then, we have some reaction from the men's long jump where Jamaica's Wayne Pinnock put in a world-leading 8.54m to storm his way into tomorrow's final.
"When I saw the distance, I was like: 'Oooh.' I was trying for this moment and it happened so I am grateful," he said. "I just jumped like I do in training. I came here, had the focus and just jumped.
"In the final, I want to go out there and do the same thing and whatever comes will come. I focused on pushing my first six or seven steps, then just kept my transition and take-off."
17:14 BST - The startlists have been released for the highly-anticipated men's and women's 200m semi-finals on Thursday and it’s set to be a very tough test for the British contingent.
In the women’s, Dina Asher-Smith lines-up against Tokyo bronze medallist Gabrielle Thomas (USA) in heat one, while in heat two, Daryll Neita will face competition from Julien Alfred (LCA), Kayla White (USA) as well as Anthonique Strachan (BAH), who have all run faster times than Neita this season.
However the toughest assignment is Bianca Williams in heat three. The 29-year-old has landed a semi-final featuring defending champion Shericka Jackson, newly-crowned 100m champion Sha'Carri Richardson and two-time world silver medallist Marie-Josée Ta Lou. Ouch.
In the men's, Zharnel Hughes faces American teenage prodigy Erriyon Knighton - the fifth-fastest man over this distance - as well as Canada’s most successful male Olympian Andre de Grasse.
The women's semi-finals will get underway at 6.45pm, with the men's from 7.20pm.
17:00 BST - Hello and welcome back to the evening session of the World Athletics Championships!
As well as British interest in the women's pole vault and men's 1,500m, there are two other finals tonight: the women’s 400m and men’s 400m hurdles.
We'll bring you the latest as it happens.
12:15 BST - That concludes our coverage of the morning session at the National Athletics Centre in Budapest.
Join us again from 5pm as Molly Caudery competes in the women's pole vault final and Neil Gourley and Josh Kerr target silverware in the men's 1,500m.
11:50 BST - Zharnel Hughes said winning his 200m heat on Wednesday felt "quite easy, it was a stroll."
Hughes, who is looking to win his second medal of the championship after winning bronze in the 100m, clocked 19.99 to reach tomorrow's semi-final.
"I felt like I was warming up because I was wondering ‘where are the guys at’ – I’m not disrespecting anyone, I’m just letting you know I am in shape," he added.
11:35 BST - It’s very much job done for GB in the morning session in Budapest with Keely Hodgkinson and Jemma Reekie progressing to the semi-finals of the 800m, with Dina Asher-Smith, Daryll Neita, Bianca Williams and Zharnel Hughes all making it through their respective 200m heats a short time ago.
However there was disappointment for Isabelle Boffey, who was the only GB athlete who failed to progress on Wednesday morning.
"I am pretty upset and disappointed," she said after finishing fourth in her 800m heat. "That’s not me, I am so much better than that. I had so much confidence on the line. I was so confident with 150m to go but I don’t know what happened.
"I usually come through so strongly, especially with my performance a couple of weeks ago, I felt so good. I’m just disappointed I couldn’t live up to my own expectations today."
11:30 BST - The line-up for the men's pole vault final is complete with the top 12 progressing to Saturday's final. Leading the way, once again, is Sweden's Armand Duplantis, who wasn't required to go above 5.75m.
Speaking afterwards, the Olympic and world champion said "everything is possible" as he bids to break his own world record of 6.22m in the final.
"Everything went as I wanted to," he said. "In the final and record-wise, everything is possible. It is up to me to go out there and put the right jump together at the right time. But I'm focused on winning the competition and taking home the gold medal."
Elsewhere, in the women's javelin, Latvia's Līna Mūze-Sirmā threw 63.50 to lead the field as the top 12 reached Friday's final.
11:27 BST - Dina Asher-Smith, Daryll Neita, Bianca Williams have been speaking to the media after they all reached the semi-finals of the women's 200m.
"It felt really good to come out here today in the heat and qualify for the next round," said Neita. "I feel a lot better than I did a few days ago (after the 100m).
"I am really excited about this event. It is my first time doing it at a major Championships, so I am really taking it round by round, staying focused, staying relaxed and enjoying the moment."
Williams said: "The job was just to go out there and get a big Q and that’s what I did and that was my second fastest time this year so I will take that!
"My preparation has been really good. It has been nice at training camp, and from trials to now has been a good block of training so it’s nice to replicate what I have been doing."
Asher-Smith added: "I came out here hoping just to qualify in a good position and do it as smartly and efficiently as possible. So I was happy to do that."
The semi-final for the women's 200m is scheduled for tomorrow at 6.45pm.
11:17 BST - And Zharnel Hughes has eased through to cross the line in 19.99 ahead of Aaron Brown. The GB record-holder looked in total control and will take his place in the semi-final tomorrow evening.
Moments later, Lyles won his heat in 20.05 ahead of the Jamaican Andrew Hudson.
11:10 BST - Zharnel Hughes is moments away from his 200m heat. The 100m bronze medallist has a season's best 19.73 and is looking to be the main challenger to world number one Noah Lyles.
The British star will be running in the first heat alongside Canada's Aaron Brown, who is likely to pose his biggest threat.
10:59 BST - Over in the high jump Armand Duplantis has just cleared 5.75m to maintain his perfect start - but he's being closely followed by American Christopher Nilsen who has finished behind the Swede at both Olympic and championship level. Can Nilson overtake Duplantis in Budapest?
The minimum qualification target for the final is 5.80m, or to be among the top 12.
10:56 BST - Dina Asher-Smith's bid for the 200m title is underway. Only USA's Kayla White has set a faster time this season in her heat, but how strong will she go? They're off...
Asher-Smith made it look so easy, finishing ahead of Maboundou Koné of the Ivory Coast on 22.46, with Kayla White completing the top three. It was more of a procession than a race!
10:40 BST - Bianca Williams has also made the semi-final of the women's 200m, clocking 22.67 to finish third. Over to Dina Asher-Smith...
10:21 BST - No problem for Daryll Neita, who eases over the line in the first heat on 22.39, +0.08 behind Anthonique Strachan of the Bahamas.
Bianca Williams is running in heat four with Dina Asher-Smith in six.
Newly-crowned 100m world champion Sha'Carri Richardson has just breezed through her round in 22.16 alongside Marie-Josée Ta Lou. They will be ones to avoid in the semi-finals.
10:20 BST - Heats for the women's 200m are about to get underway with GB's Dina Asher-Smith, Daryll Neita, Bianca Williams all looking to reach the semi-finals.
The first three in each heat progress to the latter stage, along with the next six fastest.
10:14 BST - Britain's Keely Hodgkinson and Jemma Reekie have been speaking after qualifying for the 800m semi-finals.
"I don't like these early morning races so I just wanted to get it done," Hodgkinson said. "It's been a while since I ran an 800m so it's good to get one in my legs.
"Who knows what the plan is for the next round - I just turn up and go. I didn't expect the girls to run so fast this morning but I managed to stay on their pace and work my way through. I'm glad the next round is in the evening, not this early morning, but I'm looking forward to it."
Jemma Reekie added: "Today I just wanted to qualify for the semi-final. It will be a tough one, but I came prepared.
"I feel confident I will run fast. I know the other girls will run fast too and that is why I have been doing all kinds of speed training sessions."
10:00 BST - It's getting very hot in Budapest with the trackside temperature well above 30 degrees, as athletes and spectators try to keep cool.
09:53 BST - And they're underway in the final heat of the women's 800m.
It's a quick pace with current Olympic and defending champion Athing Mu surging ahead. She leads at the bell. It's a frantic final 50m but Mu wins on 1:59.59 ahead of Jamaica's Natoya Goule-Toppin, who qualifies +0.05 behind.
Disappointment for Britain's Isabelle Boffey who is out, finishing over the line sixth on 2:01.40.
Jemma Reekie and Keely Hodgkinson will take their place in the semi-finals tomorrow evening.
09:35 BST - Jemma Reekie is currently taking her place in her heat for the 800m. The 25-year-old narrowly missed out on a medal at the Tokyo Olympics and at the European championships a year later, and will be eager to stamp her mark here.
And they're off! Reekie rounds the bell first and starts to pull away from the field with 400 to go. It's a three-way tussle in the final 100 but it's no problem - she crosses the line in second place behind USA's Nia Akins to qualify on 1:59.71.
Can Isabelle Boffey - the current indoor champion - also make the semis? She runs in the final heat...
09:14 BST - There are two other qualifiers this morning: the women's javelin, which is set to start at 9.20am, followed at 10.15am with the men's long jump. Places in both semi-finals are at stake.
09:10 BST - Qualification for the men's pole vault is about to get underway, but can anyone challenge Olympic champion Armand Duplantis? It will be an almighty shock if anyone can stop the 23-year-old world record holder - and reigning champion - from winning gold here.
09:05 BST - And we're off!
Hodginson times her run to perfection. Sixth at the bell, she puts her foot down and storms into the lead with 200 to go, crossing the line first in 1:59.53.
08:50 BST - We start with the women’s 800m and Olympic silver medallist Keely Hodgkinson in heat one. The 21-year-old is red-hot favourite to medal at these championships, but what colour will it be?
Hodgkinson won silver at Tokyo 2020 and silver at the world championships in Oregon last summer - can she win her maiden world title here?
GB's Jemma Reekie runs in heat five with Issy Boffey in seven.
The top three in each heat qualify for the semi-finals automatically, along with the next fastest three.
08:40 BST - Hello and welcome along to the fifth day of the World Athletics Championships in Budapest!
It's a crucial day for British medal hopes with Keely Hodgkinson, Jemma Reekie and Issy Boffey bidding to qualify for the 800m semi-finals, with Dina Asher-Smith, Daryll Neita, Bianca Williams and newly-crowned 100m bronze medallist Zharnel Hughes all targeting the semis of the 200m.
In the evening, Charlotte Payne and Anna Purchase will compete in the hammer throw qualifiers, Megan Keith and Amy-Eloise Markovc are up in the 5,000m heats and Cindy Sember will take her place in the heats for the 110m hurdles.
As if that wasn't enough, Molly Caudery will be in the final of the women's pole vault (from 6.30pm) with the showpiece final of the day - the men's 1,500m - featuring European silver medallist Neil Gourley and Tokyo bronze medallist Josh Kerr looking to add to GB's medal count.
If yesterday's action was anything to go by, we could be in for a cracker.
Relive all the action from the World Athletics Championships 2023 in Budapest
Day 1: GB win first medal, Hughes breezes through 100m heat
Day 2: Hughes wins men's 100m bronze, Johnson-Thompson storms to gold
Day 3: Sha'Carri Richardson wins 100m final to seal maiden world title
Day 4: Faith Kipyegon wins 1,500m as Hudson-Smith breaks European record
