World champion Georgia Taylor-Brown and double Olympic medallist Jonny Brownlee hope to use Saturday's Super League Triathlon Arena Games to kick start their Olympic season.
The Super League Triathlon Arena Games are an exciting and innovative new type of triathlon - combining real and virtual races to allow entire triathlons to take place in one arena.
Competitors will swim four lengths of an Olympic pool, while the 1km run and the 4km cycle ride will take place on fixed machines, with the athletes' performances recreated in real-time on virtual courses for the spectators.
There will be two minutes between each leg for the competitors to prepare, and the order of the events will be mixed up across three different stages.
The event first hit the triathlon scene in Rotterdam in 2020 and was a big success, with races in London and Rotterdam already announced for this year. The London leg is being hosted in the London Acquatics Centre at the Olympic Park.
Super League TriathlonCopyright: Super League Triathlon
Brits in the running in London
SLT Arena GamesCopyright: SLT Arena Games
Britain are sending a strong contingent to the SLT Arena Games in London - with six men and six women among the 20 names on the start lists.
Among the big names are former world champion and Olympic medallist Jonny Brownlee, two-time European Junior champion Georgia Taylor-Brown and Triathlon World Cup gold medallist Sophie Coldwell.
Other big names taking part include Justus Nieschlag, who won the men's race at the inaugural event in Rotterdam last year, and Rachel Klamer, the women's runner-up from that event.
Full list of British entrants
Men: Jonny Brownlee, Alex Yee, Tim Don, Gordon Benson, George Goodwin & Adam Bowden.
Women: Georgia Taylor-Brown, Lucy Charles-Barclay, Sophie Coldwell, Beth Potter, Kate Waugh & Ruth Astle.
How to watch the SLT Arena Games
All times are GMT and subject to change
BBC iPlayer
You can watch live coverage from London on the BBC Red Button, BBC iPlayer and right here on the BBC Sport website and mobile app - and all of the action will be available on catch-up via the iPlayer.
Saturday 27 March
15:00-17:00 - BBC Red Button, BBC iPlayer and BBC Sport website & app
Sunday 28 March
10:30-12:30 - BBC Red Button (replay)
How to get into triathlon
Get Inspired
#GetInspired
Video content
Video caption: 'I didn't know what triathlon was''I didn't know what triathlon was'
Like running, swimming or cycling? Fancy doing all three, one after the other? If you answered yes to the previous two questions then triathlon is the sport for you!
The main triathlon season runs from May until September and there are loads of races to choose from - there are over 750 triathlon clubs in the UK with many of them offering taster sessions for people interested in taking up the sport. You can find a comprehensive list of races via the British Triathlon event finder.
Live Reporting
All times stated are UK
Super League TriathlonCopyright: Super League Triathlon 
SLT Arena GamesCopyright: SLT Arena Games 
Video caption: 'I didn't know what triathlon was''I didn't know what triathlon was'
Latest PostLondon set for 'video game' triathlon
By David McDaid
BBC Olympic sports reporter
World champion Georgia Taylor-Brown and double Olympic medallist Jonny Brownlee hope to use Saturday's Super League Triathlon Arena Games to kick start their Olympic season.
Read moreWhat are the SLT Arena Games?
The Super League Triathlon Arena Games are an exciting and innovative new type of triathlon - combining real and virtual races to allow entire triathlons to take place in one arena.
Competitors will swim four lengths of an Olympic pool, while the 1km run and the 4km cycle ride will take place on fixed machines, with the athletes' performances recreated in real-time on virtual courses for the spectators.
There will be two minutes between each leg for the competitors to prepare, and the order of the events will be mixed up across three different stages.
The event first hit the triathlon scene in Rotterdam in 2020 and was a big success, with races in London and Rotterdam already announced for this year. The London leg is being hosted in the London Acquatics Centre at the Olympic Park.
Brits in the running in London
Britain are sending a strong contingent to the SLT Arena Games in London - with six men and six women among the 20 names on the start lists.
Among the big names are former world champion and Olympic medallist Jonny Brownlee, two-time European Junior champion Georgia Taylor-Brown and Triathlon World Cup gold medallist Sophie Coldwell.
Other big names taking part include Justus Nieschlag, who won the men's race at the inaugural event in Rotterdam last year, and Rachel Klamer, the women's runner-up from that event.
Full list of British entrants
Men: Jonny Brownlee, Alex Yee, Tim Don, Gordon Benson, George Goodwin & Adam Bowden.
Women: Georgia Taylor-Brown, Lucy Charles-Barclay, Sophie Coldwell, Beth Potter, Kate Waugh & Ruth Astle.
How to watch the SLT Arena Games
All times are GMT and subject to change
BBC iPlayer
You can watch live coverage from London on the BBC Red Button, BBC iPlayer and right here on the BBC Sport website and mobile app - and all of the action will be available on catch-up via the iPlayer.
Saturday 27 March
15:00-17:00 - BBC Red Button, BBC iPlayer and BBC Sport website & app
Sunday 28 March
10:30-12:30 - BBC Red Button (replay)
How to get into triathlon
Get Inspired
#GetInspired
Video content
Like running, swimming or cycling? Fancy doing all three, one after the other? If you answered yes to the previous two questions then triathlon is the sport for you!
The main triathlon season runs from May until September and there are loads of races to choose from - there are over 750 triathlon clubs in the UK with many of them offering taster sessions for people interested in taking up the sport. You can find a comprehensive list of races via the British Triathlon event finder.