EVENT 358 Mens Open 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 2 | 11 | Andreas Bjornstad | 97 | S7 | Norway | 37.50 |
| 3 | 13 | Zach Shattuck | 96 | S6 | USA | 36.48 |
| 4 | 15 | Tobias Pollap | 86 | S7 | Germany | 33.20 |
| 5 | 14 | Wei Soong Toh | 98 | S7 | Singapore | 35.12 |
| 6 | 12 | Hannes Schuermann | 97 | S7 | Germany | 36.85 |
| 7 | 10 | Mikael Natunen | 92 | S7 | Finland | 37.80 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 1 | Matz Topkin | 98 | S5 | Estonia | 48.35 |
| 2 | 3 | Simon Prodanovic | 00 | S7 | Germany | 43.84 |
| 3 | 7 | Fabian Brune | 00 | S7 | Germany | 40.36 |
| 4 | 9 | Alexander Goodman | 91 | S7 | Gr Britain | 38.00 |
| 5 | 8 | Andrew Mullen | 96 | S5 | Gr Britain | 38.03 |
| 6 | 5 | Arnost Petracek | 91 | S4 | Czech Rep | 42.08 |
| 7 | 2 | William Hardy | 98 | S6 | Gr Britain | 45.47 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 4 | 6 | William Perry | 00 | S6 | Northampton | 41.85 |
| 5 | 4 | Matthew Harding | 99 | S6 | Wirral Metro | 43.16 |