The 11th FINA World Swimming Championships (25m) was held in Istanbul, Turkey on 12–16 December 2012. This swimming-only championships took place in the Sinan Erdem Dome; all events were swum in a 25-meter (short-course) pool. The United States topped the medal standings with a total of 27 medals and had the most gold medals with 11. A total of 18 championship records were set and 2 world records (both set by American Ryan Lochte) broken. Lochte and Hungarian Katinka Hosszú were named the best male and female swimmers of the competition. Lochte finished the meet with 8 total medals (breaking his previous record of 7 set in 2010) and Hosszú had 5 total medals.

Bidding process

FINA announced on 12 April 2008 that Istanbul had defeated the only other bidder Vienna, Austria after a meeting of the FINA Bureau in Manchester, UK.

Venue

The events took place at the Sinan Erdem Dome, which has a seating capacity of 22,500.

Events

The swimming competition featured races in a short-course (25 m) pool in 40 events (20 for males, 20 for females; 17 individual events and 3 relays for each gender). Prelim events were held in the morning session and semi-finals/final in the evening session.

Schedule

Medal summary

Changes in medal standings

In June 2013, Danish swimmer Mads Glæsner was stripped by FINA of a gold and bronze medal from the 400- and 1500-meter freestyle after testing positive for levomethamphetamine. In January 2014 the Court of Arbitration for Sport partially overturned FINA's ruling and returned the gold medal in 1500 m freestyle.

Results

Men's events

Women's events

Championship and world records broken

Men

Women

Broadcasting rights

Participating nations

161 nations entered the competition. Ecuador, currently suspended by FINA due to government interference, participated under the FINA flag. Venezuela later withdrew. • 🇦🇱 (3) • (1) • 🇦🇩 (3) • (4) • 🇦🇷 (8) • 🇦🇲 (3) • (3) • 🇦🇺 (19) • 🇦🇹 (4) • 🇦🇿 (4) • 🇧🇳 (5) • (3) • (4) • 🇧🇾 (7) • 🇧🇪 (1) • 🇧🇯 (2) • 🇧🇴 (3) • 🇧🇦 (2) • (6) • 🇧🇷 (22) • (4) • 🇧🇬 (2) • (3) • 🇧🇮 (3) • (3) • 🇨🇲 (3) • 🇨🇦 (13) • 🇨🇳 (36) • (4) • (2) • 🇨🇴 (3) • 🇰🇲 (3) • 🇨🇰 (3) • (3) • 🇨🇮 (3) • (6) • 🇨🇺 (3) • 🇨🇾 (3) • 🇨🇿 (7) • (12) • 🇩🇯 (2) • 🇩🇴 (3) • 🇨🇩 (3) • Ecuador (2) • (3) • 🇪🇪 (6) • 🇫🇴 (2) • (3) • 🇫🇮 (6) • 🇫🇷 (9) • (3) • 🇩🇪 (12) • 🇬🇭 (5) • 🇬🇮 (5) • 🇬🇧 (19) • (3) • (3) • 🇬🇺 (4) • (3) • (3) • 🇬🇾 (3) • (3) • 🇭🇰 (3) • 🇭🇺 (15) • 🇮🇸 (3) • 🇮🇳 (9) • (4) • (2) • 🇮🇶 (3) • 🇮🇪 (1) • 🇮🇱 (4) • 🇮🇹 (26) • 🇯🇲 (2) • 🇯🇵 (29) • 🇯🇴 (3) • 🇰🇿 (5) • 🇰🇪 (7) • (3) • 🇰🇬 (6) • 🇱🇦 (3) • (3) • (1) • 🇱🇮 (2) • 🇱🇹 (6) • (2) • 🇱🇺 (3) • 🇲🇴 (9) • 🇲🇰 Macedonia (3) • (3) • undefined (3) • 🇲🇻 (3) • 🇲🇭 (3) • (4) • 🇲🇽 (4) • 🇲🇹 (7) • 🇲🇩 (3) • (3) • 🇲🇿 (3) • (3) • 🇳🇦 (4) • (3) • (4) • 🇳🇿 (6) • (3) • (2) • (3) • (3) • 🇰🇵 (3) • 🇳🇴 (2) • 🇵🇰 (6) • 🇵🇼 (3) • (3) • 🇵🇦 (3) • 🇵🇬 (4) • (6) • 🇵🇪 (10) • 𝜙 (2) • 🇵🇱 (13) • (3) • (2) • 🇶🇦 (6) • (1) • 🇷🇺 (28) • 🇷🇼 (3) • 🇱🇨 (3) • (6) • (3) • 🇸🇳 (3) • 🇷🇸 (2) • (4) • 🇸🇱 (5) • (9) • 🇸🇰 (5) • (10) • (19) • 🇰🇷 (4) • 🇪🇸 (7) • (3) • (4) • 🇸🇾 (3) • 🇸🇪 (11) • (5) • 🇹🇯 (3) • (4) • 🇹🇭 (3) • (3) • (1) • (3) • 🇹🇳 (2) • 🇹🇷 (26) (host) • 🇹🇲 (9) • 🇺🇬 (4) • 🇺🇦 (8) • (3) • 🇺🇸 (43) • (4) • 🇺🇿 (4) • (3) • (3) • (2)