Get Involvedpublished at 17:36 BST 13 September
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All track and field disciplines need to be included.
Lesley, Hertfordshire
Summary
Inaugural World Athletics Ultimate Championship draws to a close with final day of action in Budapest
Josh Kerr wins 1500m final for Great Britain's first title at event
Amy Hunt places fourth in women's 200m final as American Melissa Jefferson-Wooden wins in third-fastest time in history
Great Britain's quartet finish second in mixed 4x400m relay
Event winners pocket $150,000 (£110,000) each with total prize fund of $10m (£7.4m)
Send your athletics views
get involved Get Involvedpublished at 17:36 BST 13 September
Athletics' new-look competitionpublished at 17:34 BST 13 September
Image source, Getty ImagesEven after a brief watch, fans will notice significant changes at the Ultimate Championship.
A bright pink sandpit and a pitch black infield. Win percentages flashing up on screen, and sparklers lighting up the dark backdrop as athletes pose with their brand new trophy.
The appearance of the arena is immediately striking. An infield painted black is designed to direct the audience's focus to the illuminated live action.
On TV, the use of augmented reality, athlete headshots, win probabilities and projected finishing positions for each event have been introduced to enhance the viewer experience.
For their crowning moment, athletes lift their trophy from a plinth beside their competition area before heading to a winners' enclosure in the stands, where they have been joined by the likes of Usain Bolt and Noah Lyles.
But not everyone has been invited, with long-distance track events and certain field events excluded entirely.
Image source, Getty Images'De Grasse is running really well'published at 17:32 BST 13 September
Men's 200m semi-finals
Steve Cram
Athletics commentator on BBC OneA bit of fun there between Dambile and De Grasse. They were just looking over their shoulders at each other.
De Grasse is running really well. The final is going to be a quick one.
Postpublished at 17:31 BST 13 September
Men's 200m semi-finals
They go quicker still in the second of the men's semi-finals!
And they have fun doing it, too.
South Africa's Sinesipho Dambile clocks 19.80 seconds to take the win, but he and Canadian Andre De Grasse exchange looks across the lanes as they ease down towards the finish line, having already done enough to be sure of making the top-four positions.
That should be a great final at 19:38 BST tonight.
Image source, Reutersget involved Get Involvedpublished at 17:27 BST 13 September
Click 'get involved' to have your say
As someone who has been to Diamond League and World Champs both in the UK and abroad I was sceptical about the Ultimate Champs but I have to say they have really delivered. So provided the format is a biennial exception rather than the rule - big thumbs up!
Will, Crawley
'Jones judged it perfectly'published at 17:25 BST 13 September
Women's 400m hurdles final
Steve Cram
Athletics commentator on BBC OneAnna Cockrell just went too hard. You have to run the race right here and Jasmine Jones judged that perfectly. A really good start to the evening and a good crowd in here tonight.
Postpublished at 17:23 BST 13 September
Men's 200m semi-finals
While the men's javelin competition gets under way on the black infield, it's time for the men's 200m semi-finals.
Olympic champion Letsile Tebogo and silver medallist Kenneth Bednarek headline the first semi-final.
And it is Bednarek who makes a bit of a statement as he cruises to victory in 19.86 seconds. Impressive.
Another American, Courtney Lindsey, is second, with Tebogo not expending any extra energy as he comfortably qualifies in third.
Image source, Getty Imagesget involved Get Involvedpublished at 17:19 BST 13 September
Click 'get involved' to have your say
As the inaugural Ultimate Championship draws to a close tonight, we want to hear your thoughts on this brand new event.
Are you a fan? Love the fast and frenetic nature of the action? Or do you think the new innovations are a step too far?
Let us know by clicking the get involved button.
What's this all about?published at 17:17 BST 13 September
Image source, Getty ImagesOnly just getting up to speed with what the World Athletics Ultimate Championship is all about?
The sport's new event has been introduced to provide a pinnacle to a season which otherwise would have lacked a global championship.
But that is just the tip of the iceberg - more on that shortly.
Athletes are competing for the biggest prize pot in the sport's history at the Ultimate Championship, with a total of $10m (£7.4m) on offer across three days of action in Budapest.
It is hoped that the condensed, innovative format will help shape the sport's future.
Jones wins first final of the nightpublished at 17:14 BST 13 September
Women' 400m hurdles final
The first Ultimate champion on the final night of action in Budapest is American Jasmine Jones!
Jones clocks her fastest time of the season with a 52.45-second run to beat Slovakia's Emma Zapletalova to the $150,000 top prize.
Fellow American Anna Cockrell has to settle for third.
Image source, Getty ImagesTune inpublished at 17:11 BST 13 September
BBC OneYou can watch all the action live from Budapest on BBC One, BBC iPlayer and, of course, right here on the BBC Sport website and app.
What's happening on Sunday night?published at 17:06 BST 13 September
Image source, Getty ImagesHere's everything we have to look forward to this evening (all times BST):
- 17:08: Women's 400m hurdles final
- 17:13: Men's javelin final
- 17:18: Men's 200m semi-finals
- 17:36: Men's 400m hurdles final
- 17:44: Women's 200m semi-finals - ft. GB's Amy Hunt & Success Eduan
- 18:04: Men's high jump final
- 18:10: Women's 5,000m final - ft. GB's Hannah Nuttall
- 18:34: Women's triple jump final
- 18:41: Men's 800m final
- 18:53: Mixed 4x400m relay final - ft. GB
- 19:12: Men's 1500m final - ft. GB's Josh Kerr & Jake Wightman
- 19:38: Men's 200m final
- 19:49: Women's 200m final
One last dance...published at 17:00 BST 13 September
Hello and welcome back to our coverage of the inaugural World Athletics Ultimate Championship!
The third and final night of action is on its way, with the last Ultimate champions to be crowned and final slices of the record $10m prize money to be awarded.
Let's see what Sunday night has in store for us, shall we?
Image source, Getty Images