Thanks to Tim Binning – theswimpictures.com – for capturing these great photos.
![Cameron McEvoy, AUS, reacts to his field-leading 47.94 in semi-finals of men's 100m free. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/MCEVOY-Cameron-AUS-Cameron-MCEVOY-MCEVOY-TBX_6464--640x426.jpg)
Cameron McEvoy, AUS, reacts to his field-leading 47.94 in semi-finals of men’s 100m free. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)
![Ning Zetao, CHN, posted 2nd-fastest time in semi-finals of men's 100m free on Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/NING-Zetao-CHN-NING-Zetao-NING-TBX_6500--640x426.jpg)
Ning Zetao, CHN, posted 2nd-fastest time in semi-finals of men’s 100m free on Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)
![Etiene Medeiros, BRA, was the 2nd-fastest qualifier through to finals in women's 50 back on Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/MEDEIROS-Etiene-BRA-Etiene-MEDEIROS-MEDEIROS-TBX_6559--640x426.jpg)
Etiene Medeiros, BRA, was the 2nd-fastest qualifier through to finals in women’s 50 back on Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)
![Fu Yuanhui, CHN, led the women's 50m back qualifiers with her semi-final time of 27.18. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/FU-Yuanhui-CHN-FU-Yuanhui-FU-TBX_6590--640x426.jpg)
Fu Yuanhui, CHN, led the women’s 50m back qualifiers with her semi-final time of 27.18. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)
![Laszlo Cseh, HUN, wins gold in men's 200m fly, 10 years after his last World Championship title in men's 400 IM. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/CSEH-Laszlo-CSEH-HUN-Laszlo-CSEH-TBX_6705--640x426.jpg)
Laszlo Cseh, HUN, wins gold in men’s 200m fly, 10 years after his last World Championship title in men’s 400 IM. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)
![Katie Ledecky, USA, is World Champion of women's 200m free with 1:55.16. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/LEDECKY-Katie-Katie-LEDECKY-LEDECKY-USA-TBX_6808--640x426.jpg)
Katie Ledecky, USA, is World Champion of women’s 200m free with 1:55.16. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)
![Katie Ledecky (L) and Missy Franklin (R) of USA won Gold and Bronze in women's 200m free on Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/Ledecky-Katie-LEDECKY-Missy-FRANKLIN-USA-TBX_6873--640x426.jpg)
Katie Ledecky (L) and Missy Franklin (R) of USA won Gold and Bronze in women’s 200m free on Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)
![Adam Peaty, GBR, is World Champion in men's 50m breast (26.51) on Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/PEATY-Adam-Adam-PEATY-GBR-PEATY-TBX_6952--640x426.jpg)
Adam Peaty, GBR, is World Champion in men’s 50m breast (26.51) on Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)
![Camille Adams (L) and Katie McLaughlin (R) will both represent USA in the women's 200 fly final after qualifying 6th and 5th in semi-finals on Day 4 of 2015 World Championships. (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/McLaughlin-Camille-Adams-Katy-McLaughlin-USA-TBX_7152--640x426.jpg)
Camille Adams (L) and Katie McLaughlin (R) will both represent USA in the women’s 200 fly final after qualifying 6th and 5th in semi-finals on Day 4 of 2015 World Championships. (courtesy of Tim Binning, theswimpictures.com)
![Natsumi Hoshi, JPN, was the top qualifier through to finals in women's 200 fly semi-finals, with 2:06.36. Day 4 of 2015 World Championships. (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/HOSHI-Natsumi-HOSHI-JPN-Natsumi-HOSHI-TBX_7234--640x426.jpg)
Natsumi Hoshi, JPN, was the top qualifier through to finals in women’s 200 fly semi-finals, with 2:06.36. Day 4 of 2015 World Championships. (courtesy of Tim Binning, theswimpictures.com)
![Thiago Pereira, BRA, finished 3rd overall in men's 200 IM semi-final on Day 4 of 2015 World Championships. (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/PEREIRA-Thiago-BRA-PEREIRA-Thiago-PEREIRA-TBX_7373--640x426.jpg)
Thiago Pereira, BRA, finished 3rd overall in men’s 200 IM semi-final on Day 4 of 2015 World Championships. (courtesy of Tim Binning, theswimpictures.com)
![Ryan Lochte, USA, at start of men's 200 IM semi-final on Day 4 of 2015 World Championships. (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/LOCHTE-Ryan-LOCHTE-Ryan-LOCHTE-USA-TBX_7412--640x426.jpg)
Ryan Lochte, USA, at start of men’s 200 IM semi-final on Day 4 of 2015 World Championships. Lochte posted the top time of 1:56.81. (courtesy of Tim Binning, theswimpictures.com)
![Yang Sun, CHN (R) and Gregorio Paltrinieri, ITA (L) after 1-2 finish in men's 800m free on Day 4 of 2015 World Championships. (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/SUN-Yang-CHN-Gregorio-PALTRINIERI-ITA-TBX_7574--640x426.jpg)
Yang Sun, CHN (R) and Gregorio Paltrinieri, ITA (L) after 1-2 finish in men’s 800m free on Day 4 of 2015 World Championships. (courtesy of Tim Binning, theswimpictures.com)
![Sun Yang, CHN, is World Champion in men's 800m free with 7:39.96. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)](http://swimswam.com/wp-content/uploads/2015/08/SUN-Yang-CHN-SUN-Yang-SUN-TBX_7610--640x426.jpg)
Sun Yang, CHN, is World Champion in men’s 800m free with 7:39.96. Day 4 of 2015 World Championships (courtesy of Tim Binning, theswimpictures.com)