Swimming at the 2020 Summer Paralympics – Men's 100 metre butterfly S13
# Swimming at the 2020 Summer Paralympics – Men's 100 metre butterfly S13

The Men's 100 metre butterfly S13 event at the 2020 Paralympic Games took place on 25 August 2021, at the Tokyo Aquatics Centre.

## Heats

The swimmers with the top 8 times, regardless of heat, advanced to the final.

| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| - | - | - | - | - | - | - |
| 1 | 2 | 4 | Ihar Boki | Belarus | 55.12 | Q |
| 2 | 2 | 5 | Oleksii Virchenko | Ukraine | 56.30 | Q |
| 3 | 1 | 4 | Islam Aslanov | Uzbekistan | 57.29 | Q |
| 4 | 1 | 5 | Alex Portal | France | 57.60 | Q |
| 5 | 1 | 3 | Muzaffar Tursunkhujaev | Uzbekistan | 57.73 | Q |
| 6 | 1 | 6 | Douglas Matera | Brazil | 58.66 | Q |
| 7 | 2 | 3 | Dzmitry Salei | Belarus | 58.80 | Q |
| 8 | 2 | 6 | Kyrylo Garashichenko | Ukraine | 59.92 | Q |
| 9 | 1 | 2 | David Henry Abrahams | United States | 1:00.69 | |
| 10 | 1 | 7 | Genki Saito | Japan | 1:01.14 | |
| 11 | 2 | 2 | Roman Agalakov | Kazakhstan | 1:02.21 | |
| 12 | 2 | 1 | Gerasimos Lignos | Greece | 1:03.01 | |
| 13 | 2 | 7 | Uladzimir Sotnikau | Belarus | 1:03.68 | |

## Final

100m butterfly final :

| Rank | Lane | Name | Nationality | Time | Notes |
| - | - | - | - | - | - |
