Last update on. From the section OlympicsTokyo Olympic Games on BBC Dates: 23 Jul-8 Aug Time in Tokyo: BST+8. Listen live on BBC TV, BBC iPlayer and BBC Red Button; Listen live on BBC Radio 5 Live, Sports Extra, and Sounds; Live text and video clips available on BBC Sport app and website.American swimmer Caeleb Dressel broke an Olympic record to win the gold medal in the 100m freestyle men's race. He is now aiming to be one of the most successful at an individual Games.Dressel won his second Tokyo gold in 47.02 seconds.China won gold in the thrilling 4x200m freestyle for women in China in seven minutes 40.33 seconds.James Wilby, the Commonwealth champion from Great Britain, was unable to win a medal in men's 200m butterfly.He finished second in the semi-final, and he started well in final before fading.Australia's Zac Studety-Cook won the race in a new Olympic record of 2:06.38. He finished ahead of Arno Kamminga from Finland and Matti Mattsson of Finland.Wilby stated that it hurts physically and mentally to BBC Sport.The result is what it is. It's hard. The way I swim, it must be a perfect balance act. If I get off a little it really pays off in the end.Dressel wins second gold with thrillerDressel won his second gold medal of the Games after his participation in the 4x100m relay win by the United States. However, it was close as Australia's Kyle Chalmers came in just 0.06secs behind Russian Kliment Kolesnikov in Third.Dressel could be the last swimmer to win these Olympics, as he is in contention to earn four more medals: two individual (100m butterfly) and 50m individual; and two relays (medley or mixed medley).Only two Olympic swimmers have won more medals than six at a Games: Mark Spitz in Munich 1972 and Michael Phelps in Beijing 2008."I've felt a lot of pressure. Pressure is fine, but stress is not. Dressel said that he handled the situation well and is happy.Caeleb Dressel aims to complete these Olympics with six gold-medalled medalsRobert Finke, Dressel's American teammate won a surprise gold medal in the men's 800m Freestyle final.He won the 75-meter final by 0.24secs to beat world champion Gregorio Paltrinieri. Mykhailo Romanchuk won the bronze medal.Strong performances from GB swimmersAlys Thomas, from Britain, was seventh in the 200m butterfly. She made her Olympic debut and finished in 2:07.90. This is more than one second faster than her semi-final time.Duncan Scott, who earlier this week won 200m freestyle gold, is now in contention to win another individual medal. He finished fastest in the 200m medley semifinal for men.Duncan Scott has so far won a Tokyo team gold and an individual Silver.Luke Greenbank was the fastest in 200m backstroke finals with a time 1:54.98. Brodie Williams finished 15th.Anna Hopkin placed fourth in her 100m freestyle semifinal. She was able to secure her spot in final by 0.01sec. Freya Anderson finished 11th overall.Molly Renshaw, Abbie Wood and Abbie Wood were both able to secure their spots in the 200m breaststroke final after finishing third and fourth respectively in their semi-finals.