| Event: | Men's 50 metre backstroke |
| Competition: | 2018 FINA World Swimming Championships (25 m) |
| Venue: | Hangzhou Sports Park Stadium |
| Dates: | 13 December (heats and semifinals) 14 December (final) |
| Competitors: | 50 |
| Win Value: | 22.58 |
| Gold: | Evgeny Rylov |
| Goldnoc: | RUS |
| Silver: | Ryan Murphy |
| Silvernoc: | USA |
| Bronze: | Shane Ryan |
| Bronzenoc: | IRL |
| Prev: | 2016 |
| Next: | 2021 |
The men's 50 metre backstroke competition of the 2018 FINA World Swimming Championships (25 m) was held on 13 and 14 December 2018.[1]
Prior to the competition, the existing world and championship records were as follows.
The heats were started on 13 December at 9:56.[2]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 5 | 4 | 23.00 | Q | |||
| 2 | 5 | 0 | 23.03 | Q | |||
| 3 | 5 | 3 | 23.15 | Q | |||
| 4 | 3 | 4 | 23.16 | Q | |||
| 5 | 5 | 5 | 23.16 | Q | |||
| 6 | 5 | 8 | 23.25 | Q | |||
| 7 | 4 | 5 | 23.34 | Q | |||
| 8 | 3 | 5 | 23.38 | Q | |||
| 9 | 3 | 0 | 23.39 | Q | |||
| 9 | 4 | 4 | 23.39 | Q | |||
| 11 | 4 | 6 | 23.46 | Q | |||
| 12 | 4 | 3 | 23.49 | Q | |||
| 13 | 5 | 2 | 23.57 | Q | |||
| 14 | 5 | 6 | 23.73 | Q | |||
| 15 | 5 | 1 | 23.75 | Q | |||
| 16 | 3 | 6 | 23.79 | Q | |||
| 17 | 2 | 5 | 23.80 | NR | |||
| 18 | 3 | 3 | 23.91 | ||||
| 19 | 4 | 8 | 23.96 | ||||
| 20 | 4 | 7 | 23.98 | ||||
| 20 | 5 | 7 | 23.98 | ||||
| 22 | 3 | 2 | 24.06 | ||||
| 23 | 3 | 8 | 24.10 | ||||
| 24 | 2 | 6 | 24.15 | ||||
| 25 | 3 | 1 | 24.17 | ||||
| 26 | 3 | 7 | 24.18 | ||||
| 27 | 4 | 1 | 24.24 | ||||
| 28 | 2 | 4 | 24.54 | ||||
| 29 | 4 | 9 | 24.63 | NR | |||
| 30 | 4 | 2 | 24.69 | ||||
| 31 | 5 | 9 | 24.79 | ||||
| 32 | 2 | 2 | 25.03 | ||||
| 33 | 2 | 7 | 25.27 | ||||
| 34 | 1 | 7 | 25.30 | ||||
| 35 | 2 | 3 | 25.38 | ||||
| 36 | 4 | 0 | 25.39 | ||||
| 37 | 2 | 1 | 25.68 | NR | |||
| 38 | 3 | 9 | 25.85 | ||||
| 39 | 2 | 8 | 26.45 | ||||
| 40 | 2 | 0 | 27.16 | ||||
| 41 | 2 | 9 | 27.70 | ||||
| 42 | 1 | 0 | 28.30 | ||||
| 43 | 1 | 4 | 29.82 | ||||
| 44 | 1 | 1 | 29.90 | ||||
| 45 | 1 | 9 | 30.50 | ||||
| 46 | 1 | 5 | 31.16 | ||||
| 47 | 1 | 8 | 34.73 | ||||
| 48 | 1 | 6 | 34.89 | ||||
| 49 | 1 | 2 | 36.41 | ||||
| 50 | 1 | 3 | 37.46 |
The semifinals were started on 13 December at 20:22.[3]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 3 | 22.87 | Q | |||
| 2 | 2 | 22.91 | Q | |||
| 3 | 4 | 22.96 | Q | |||
| 4 | 5 | 23.15 | Q | |||
| 5 | 1 | 23.19 | NR | |||
| 6 | 7 | 23.22 | ||||
| 7 | 6 | 23.25 | ||||
| 8 | 8 | 23.80 |
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 3 | 22.68 | Q | |||
| 2 | 4 | 23.00 | Q | |||
| 3 | 6 | 23.10 | Q | |||
| 4 | 5 | 23.18 | Q | |||
| 5 | 2 | 23.22 | ||||
| 6 | 7 | 23.39 | ||||
| 7 | 1 | 23.64 | ||||
| 8 | 8 | 23.69 | =NR |
The final was held on 14 December at 20:30.[4]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 4 | 22.58 | NR | ||||
| 5 | 22.63 | |||||
| 3 | 22.76 | NR | ||||
| 4 | 7 | 22.77 | WJ | |||
| 5 | 6 | 22.79 | ||||
| 6 | 2 | 23.26 | ||||
| 7 | 8 | 23.44 | ||||
| 8 | 1 | 23.49 |