Bobby Finke of the United States' final split of 25.93sec helped him climb from fourth to first in the men's 800m freestyle final ©Getty Images

Photo gallery

Bobby Finke of the US, centre, Germany's Florian Wellbrock, left, and Ukraine's Mykhailo Romanchuk, right, were separated by less than one second in the men's 800m freestyle final ©Getty Images
Bobby Finke of the US, centre, Germany's Florian Wellbrock, left, and Ukraine's Mykhailo Romanchuk, right, were separated by less than one second in the men's 800m freestyle final ©Getty Images
Yang Junxuan claimed China's first swimming medal of this year's FINA World Championships in the women's 200m freestyle ©Getty Images
Yang Junxuan claimed China's first swimming medal of this year's FINA World Championships in the women's 200m freestyle ©Getty Images
Romania's David Popovici broke a world junior record for the third time in Budapest in the men's 100m freestyle semi-finals ©Getty Images
Romania's David Popovici broke a world junior record for the third time in Budapest in the men's 100m freestyle semi-finals ©Getty Images
Hungary's Kristóf Milák, furthest left, won the men's 200m butterfly final by more than three seconds ©Getty Images
Hungary's Kristóf Milák, furthest left, won the men's 200m butterfly final by more than three seconds ©Getty Images
Home favourite Kristóf Milák sparked jubilant scenes among the home crowd with his men's 200m butterfly victory ©Getty Images
Home favourite Kristóf Milák sparked jubilant scenes among the home crowd with his men's 200m butterfly victory ©Getty Images
The United States' Nic Fink claimed a narrow victory in the men's 50m breaststroke final ©Getty Images
The United States' Nic Fink claimed a narrow victory in the men's 50m breaststroke final ©Getty Images
Nic FInk, second right, then helped the US to win mixed 4x100m medley relay gold ©Getty Images
Nic FInk, second right, then helped the US to win mixed 4x100m medley relay gold ©Getty Images
China won artistic swimming women's team technical routine gold at the Széchy Outdoor Pool ©Getty Images
China won artistic swimming women's team technical routine gold at the Széchy Outdoor Pool ©Getty Images
China earned a score of 94.7202 for their routine in the women's team technical artistic swimming final ©Getty Images
China earned a score of 94.7202 for their routine in the women's team technical artistic swimming final ©Getty Images