Editorial Coverage provided by 
The fast swims continued into night four as Team USA established a second World Record in the mixed 400 medley relay. The Americans changed tactics and relay members for the finals, choosing Matt Grevers, Lilly King, Kevin Cordes, and Simone Manuel – all Olympic gold medallists.
Adam Peaty continued his sprint breaststroke dominance with a second 50 breast under 26 seconds. Peaty delivered a 25.99 for his second gold of the meet.
Arguably one of the biggest stories of the night was Federica Pellegrini’s upset win over Katie Ledecky in the 200 free. Pellegrini unleashed a 28.82 final 50 split to chase down both Ledecky and Emma McKeon for gold and a time of 1:54.73. McKeon and Ledecky would conclude the race with matching 1:55.18s for the silver.
Chad le Clos dominated the men’s 200 fly, powering to the finish ahead of the crowd favorite: Laszlo Cseh.
To read the full recap of the day four finals, click here and head over to the 2017 FINA World Championship page for more!
Day 4 finals photo gallery:
- FINA CHAMPIONSHIP PAGE
- ULTIMATE SCHEDULE GUIDE
- QUALIFIED HIGH DIVERS
- MEDAL TABLE
- 2015 WORLD CHAMPIONSHIP RESULTS
- LIVE RESULTS
- OPEN WATER LIVE RESULTS
- PSYCH SHEET
- DAY EIGHT FINALS HEAT SHEETS
- DAY ONE PRELIMS RESULTS
- DAY ONE FINALS RESULTS
- DAY TWO PRELIMS RESULTS
- DAY TWO FINALS RESULTS
- DAY THREE PRELIMS RESULTS
- DAY THREE FINALS RESULTS
- DAY FOUR PRELIMS RESULTS
- DAY FOUR FINALS RESULTS
- DAY FIVE PRELIMS RESULTS
- DAY FIVE FINALS RESULTS
- DAY SIX PRELIMS RESULTS
- DAY SIX FINALS RESULTS
- DAY SEVEN PRELIMS RESULTS
- DAY SEVEN FINALS RESULTS
- DAY EIGHT PRELIMS RESULTS
- DAY EIGHT FINALS RESULTS