2018 African Swimming Championships – Men's 100 metre butterfly
# 2018 African Swimming Championships – Men's 100 metre butterfly

The Men's 100 metre butterfly competition of the 2018 African Swimming Championships was held on 11 September 2018.

## Records

Prior to the competition, the existing world and championship records were as follows.

| | Name | Nation | Time | Location | Date |
| - | - | - | - | - | - |
| World record | Michael Phelps | United States | 49.82 | Rome | 1 August 2009 |
| African record | Chad le Clos | South Africa | 50.56 | Kazan | 8 August 2015 |
| Championship record | Jason Dunford | Kenya | 52.49 | Johannesburg | 7 December 2008 |

## Results

### Heats

The heats were started on 11 September at 09:30.

| Rank | Name | Nationality | Time | Notes |
| - | - | - | - | - |
| 1 | Alaric Basson | South Africa | 54.69 | Q |
| 2 | Mohamed Samy | Egypt | 55.20 | Q |
| 3 | Abeiku Jackson | Ghana | 55.57 | Q |
| 4 | Yusuf Tibazi | Morocco | 55.64 | Q |
| 5 | Ralph Goveia | Zambia | 55.94 | Q |
| 6 | Abdelrahman Sameh | Egypt | 56.00 | Q |
| 7 | Mohamed Malek Masmoudi | Tunisia | 56.70 | Q |
| 8 | Bradley Vincent | Mauritius | 57.30 | Q |
| 9 | Samy Boutouil | Morocco | 57.77 | |
| 10 | Daniel Francisco | Angola | 58.82 | |
| 11 | Kobe Ndebele | South Africa | 59.22 | |
| 12 | Chase Onorati | Zimbabwe | 59.59 | |
| 13 | Herinirina John Rakotomavo | Madagascar | 1:00.20 | |
| 14 | Isihaka Irankunda | Rwanda | 1:00.53 | |
| 15 | Adam Moncherry | Seychelles | 1:01.56 | |
| 16 | Ganira Belly-Cresus | Burundi | 1:01.65 | |
| 17 | Troy Nestor Pina | Cape Verde | 1:02.29 | |
| 18 | Ovesh Purahoo | Mauritius | 1:02.51 | |
| 19 | Edilson Paco | Mozambique | 1:03.20 | |
| 20 | Simonga Dlamini | Eswatini | 1:03.69 | |
| 21 | Sithembiso Mamba | Eswatini | 1:05.82 | |
| 22 | Billy-Scott Irakose | Burundi | 1:06.75 | |
| 23 | Ayaan Chand | Botswana | 1:09.11 | |
| | Onyemeehi Opute | Nigeria | Did not start | Did not start |
| | Isobo Confidence | Nigeria | Did not start | Did not start |

### Final

The final was started on 12 September.

| Rank | Lane | Name | Nationality | Time |
| - | - | - | - | - |
| | 5 | Mohamed Samy | Egypt | 53.72 |
| | 6 | Yusuf Tibazi | Morocco | 54.20 |
| | 2 | Ralph Goveia | Zambia | 54.53 |
| 4 | 4 | Alaric Basson | South Africa | 54.79 |
| 5 | 3 | Abeiku Jackson | Ghana | 55.18 |
| 6 | 7 | Abdelrahman Sameh | Egypt | 56.53 |
| 7 | 1 | Mohamed Malek Masmoudi | Tunisia | 56.59 |
| 8 | 8 | Bradley Vincent | Mauritius | 56.66 |
