| Competition: | 20th Finswimming World Championships |
| Size: | 200 px |
| Dates: | 16–20 July |
| Venue: | Sports Center Milan Gale Muškatirović Ada Ciganlija Lake |
| Location: | Belgrade, Serbia |
| Prev: | Volos 2016 |
| Next: | Tomsk 2021 (indoor) Santa Marta 2021 (open water) |
The 20th Finswimming World Championships were held in Belgrade, Serbia at the Sports Center Milan Gale Muškatirović and at Ada Ciganlija Lake from 16 to 20 July 2018.[1]
| 50 m surface | 15.54 | 15.77 | 15.85 | ||||||
| 100 m surface | 35.03 | 35.34 | 35.54 | ||||||
| 200 m surface | 1:21.22 | 1:21.24 | 1:21.26 | ||||||
| 400 m surface | 2:58.22 | 3:00.45 | 3:00.70 | ||||||
| 800 m surface | 6:19.39 | 6:20.72 | 6:29.12 | ||||||
| 1500 m surface | 12:20.64 | 12:22.76 | 12:23.35 | ||||||
| 50 m bi-fins | 18.85 | 19.05 | 19.33 | ||||||
| 100 m bi-fins | 41.79 | 41.93 | 42.15 | ||||||
| 200 m bi-fins | 1:35.74 | 1:36.07 | 1:36.12 | ||||||
| 400 m bi-fins | 3:29.36 WR | 3:29.58 | 3:34.91 | ||||||
| 50 m apnea | 14.24 | 14.31 | 14.35 | ||||||
| 100 m immersion | 32.16 | 32.17 | 32.35 | ||||||
| 400 m immersion | 2:44.02 | 2:48.37 | 2:49.09 | ||||||
| 4×100 m surface relay | valign=top | 2:20.97 | valign=top | Lee Dong-jin (35.88) Jang Seong-hyeok (36.28) Kwon Nam-ho (35.02) You Gyeong-heon (34.73) | 2:21.91 | valign=top | 2:23.09 | ||
| 4×200 m surface relay | valign=top | 5:28.01 | valign=top | 5:30.93 | valign=top | 5:31.38 | |||
| 6 km open water | 56:53:18 | 56:55.95 | 57:07.47 | ||||||
| 50 m surface | 17.52 | 17.84 | 18.00 | ||||||
| 100 m surface | 38.28 ER | 38.87 | 38.95 | ||||||
| 200 m surface | 1:27.39 | 1:29.91 | 1:30.72 | ||||||
| 400 m surface | 3:12.10 WR | 3:12.86 ER | 3:13.14 | ||||||
| 800 m surface | 6:50.55 | 6:58.26 | 6:58.78 | ||||||
| 1500 m surface | 13:20.96 | 13:27.62 | 13:39.56 | ||||||
| 50 m bi-fins | 21.13 | 21.89 | 21.93 | ||||||
| 100 m bi-fins | 46.33 | 47.04 | 47.12 | ||||||
| 200 m bi-fins | 1:43.39 | 1:43.90 | 1:44.55 | ||||||
| 400 m bi-fins | 3:44.92 WR | 3:45.92 | 3:48.91 | ||||||
| 50 m apnea | 15.90 | 16.12 | 16.13 | ||||||
| 100 m immersion | 35.86 | Not awarded | 36.58 | ||||||
| 400 m immersion | 2:59.24 | 3:00.33 | 3:03.76 | ||||||
| 4×100 m surface relay | valign=top | 2:34.75 | valign=top | Shu Chengjing (39.16) Liu Simin (39.03) Xin Peiyao (39.07) Xu Yichuan (38.27) | 2:35.53 | valign=top | Grace Fernández (39.54) Mercedes Ruiz (40.88) Viviana Retamozo (39.89) Paula Aguirre (39.85) | 2:40.16 | |
| 4×200 m surface relay | valign=top | 5:56.85 | valign=top | Liu Yushan (1:32.54) Xu Yichuan (1:29.79) Chen Sijia (1:34.19) Sun Yiting (1:31.52) | 6:08.04 | valign=top | 6:10.23 | ||
| 6 km open water | 59:00:46 | 59:03.08 | 59:15.06 | ||||||
| 4×50 m surface relay | valign=top | Lee Dong-jin (15.44) Kim Ga-in (17.28) Kwon Nam-ho (14.93) Kim Min-jeong (17.05) | 1:04.70 | valign=top | Erica Barbon (17.70) Tommaso Crisci (14.84) Silvia Baroncini (18.13) Cesare Fumarola (14.87) | 1:05.54 | valign=top | 1:05.55 | |
| 4×100 m bi-fins relay | valign=top | 2:58.04 WR | valign=top | 3:00.62 | valign=top | Bence Stadler (44.85) Matthew Hamlin (45.69) Krisztina Varga (46.97) Petra Senánszky (46.10) | 3:03.61 | ||
| 4×2 km open water relay | Oleksandr Odynokov (18:24.41) Kristina Musienko (20:16.19) Ievheniia Olieinikova (18:25.24) Oleksii Zakharov (17:32.40) | 1:14:38.24 | Alexey Shafigulin (18:22.91) Anastasia Mulkova (19:02.14) Evgenia Kozyreva (19:28.58) Iakov Stryukov (18:09.68) | 1:15:03.31 | Mara Zaghet (19:15.95) Riccardo Campana (18:07.52) Serena Monduzzi (19:39.72) Davide De Ceglie (18:08.59) | 1:15:11.78 | |||