Which is fairly phenomenal when you think about Ihar Boki and his incredible record. Boki is going to use his underwater to try to get as much of an advantage as he can. As he breaks towards water he comes up in front and looking to claw his way to the wall. Front crawl looking good for Ihar Boki. Looking good for the silver is Yaremenko. It's Ukraine two and three as Yaremenko and Veraksa manage to touch the wall. But Ihar Boki, fourth medal, all four gold in his fourth event. A four-time world champion, a four-time European champion, in his fourth event has picked up a fourth gold medal pat Tokyo 2020. He is one 100th of a second outside his own world record. >> What a swim. He was off the blocks quickly. As soon as he got into his stroke, he extended his lead. You could see how far he was ahead of the field. In a 50 you can't normally tell, and that shows how good he is. Veraksa with a quality medal. Eight times a world champion, he won this event in 2008. In 2012 and in 2016 in the S12 classification, an eight-time gold medallist at the Paralympic Games, and, indeed, somebody who picks up his 13th Paralympic Games medal here. But Ihar Boki, class, quality and... >> He was, he really led the full way. In a 50 it's just unheard of. He reaches for the touch pad at the end and gets right in there. If he didn't clip his nails maybe he would have got a world record! >> He shaved, maybe he clip his nails as well. Ihar Boki who has been sporting some scruff in recent days. But no