Swimmingpublished at 03:16 British Summer Time 12 August 2016
Do you reckon Michael Phelps could even name all 22 of his Olympic gold medals?
Swimming: Phelps wins 200m medley for fourth gold in Rio and 22nd overall
Manuel and Oleksiak tie for women's 100m freestyle gold
Cycling: GB win men's team sprint final - Kenny's fourth gold medal
GB win silvers in rugby sevens, rowing and canoe slalom
Rowing: Grainger becomes most decorated British female Olympian
Tennis: Murray wins singles and doubles matches, Konta goes out
Tom Rostance
Do you reckon Michael Phelps could even name all 22 of his Olympic gold medals?
Men's 200m individual medley
Adrian Moorhouse
1988 Olympic 100m breaststroke champion on BBC TV
What a winner. It's been a privilege to watch every one of his gold medals but I don't think I've seen one as emotional as that one. He destroyed the field. It was stunning.
Men's 200m individual medley
A sporting phenomenon. Michael Phelps defies the years, the odds. That's his fourth gold of the week.
He races again in 20 minutes!
Men's 200m individual medley
Ryan Lochte faded badly, he looked tired and aging. He finished fifth. Kosuke Hagino took silver with Shun Wang the bronze.
Brazilian favourite Thiago Pereira burnt himself out and came seventh. Dan Wallace was eighth and last.
Men's 200m individual medley
Andy Jameson
BBC commentator and former British Olympic swimmer
I cannot believe how great this is.
Men's 200m individual medley
That was an incredible final 125m. Michael Phelps taught them all a lesson at the age of 31. He tore it apart!
A fourth gold medal in a row in the one event. Amazing. His 22nd Olympic Gold medal.
Men's 200m individual medley
Michael Phelps easing away on the breaststroke, he's close to world record pace as he hits the front crawl. Takes metres out of the field! So much power!
Men's 200m individual medley
Thiago Pereira is leading for Brazil! A feverish atmosphere. On the backstroke it's Michael Phelps in third, Ryan Lochte leading. The Brazilian in second. Very close.
Men's 200m individual medley
Silence at last for the starter. Bang! Butterfly up first and it's Phelps/Lochte streaking out.
#AlarmCall
Men's 200m individual medley
The Baltimore Ravens are stopping a pre-season game to show this live. BIG. The atmosphere is brilliant inside the arena now. 'THIAGO! THIAGO! THIAGO!'
He's in lane three.
#AlarmCall
Men's 200m individual medley
GB's Dan Wallace looks super cool as he enters the arena. Swagger.
Above and beyond, Amelia. Above and beyond.
#AlarmCall
#AlarmCall
Men's 200m individual medley
Here they come! Michael Phelps has owned this medal since 2004. Incredible really.
Men's 200m individual medley
Rebecca Adlington
Double Olympic gold-medal winning swimmer on BBC One
Dan Wallace always steps up at the major meet. He's a wildcard but he's made everyone sit up and he's shown he's here for a reason. It will be very hard for him to get a medal.