Adam Peaty is 1/100 to win a second gold medal at the World Championships and evens to break the 50m breaststroke world record for the third time in 24 hours.
Already the 100m breaststroke World and Olympic champion, he looks unopposable in tonight's showpiece event after twice lowering his own world record on Tuesday.
Sky Bet have price boosted him to evens to beat his remarkable time again in a final in which he's so dominant, second favourite Cameron van der Burgh is a 20/1 chance ahead of Felipe Lima at 28/1.
And then the 22-year-old Uttoxeter swimmer is expected to come into the mixed medley relay team an hour later in a final for which Britain have qualified behind the United States, Australia and Canada.
The mixed medley relay has been added to the Olympic programme for the Tokyo 2020 Games.
Britain won world gold in Kazan, Russia, two years ago in a world record of three minutes 41.71 seconds, with Peaty on the breaststroke leg.
The United States improved that mark in the second of four heats on Wednesday morning to 3mins 40.28secs and Britain went in the fourth heat.
Georgia Davies on backstroke, Ross Murdoch on breaststroke, James Guy on butterfly and Freya Anderson on freestyle clocked 3:44.79 as they finished behind Australia's 3:44.13.
Canada finished second to the USA in the second heat to advance third quickest in 3:44.46.
