| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:17.19 | 2026 Trojan Pentathlon | 2026-03-06 |
| 100m Breaststroke | 1:37.32 | 2026 Trojan Pentathlon | 2026-03-06 |
| 100m Butterfly | 1:23.61 | David Lawson Invitational 2026 | 2026-01-23 |
| 100m Freestyle | 1:08.93 | Scar Pan Am Winter Classic | 2026-01-16 |
| 100m Freestyle | 1:08.38 | 2026 Trojan Pentathlon | 2026-03-06 |
| 200m Backstroke | 2:47.10 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Backstroke | 2:41.69 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Breaststroke | 3:18.02 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Freestyle | 2:53.20 | June Performance Meet 2025 | 2025-06-06 |
| 200m Freestyle | 2:31.31 | 2025 NYAC Cup | 2025-11-14 |
| 200m IM | 2:49.38 | 2026 Trojan Pentathlon | 2026-03-06 |
| 400m Freestyle | 5:20.56 | 2025 NYAC Cup | 2025-11-14 |
| 400m IM | 5:51.78 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Backstroke | 36.65 | David Lawson Invitational 2026 | 2026-01-23 |
| 50m Breaststroke | 45.22 | Scar Pan Am Winter Classic | 2026-01-16 |
| 50m Breaststroke | 43.89 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Butterfly | 35.19 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Freestyle | 31.21 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 800m Freestyle | 11:13.40 | 2025 OAK Brad Townsend Fall Classic | 2025-10-17 |
Ersoy, Eren's top personal bests include 100m Backstroke (1:17.19), 100m Breaststroke (1:37.32), 100m Butterfly (1:23.61), 100m Freestyle (1:08.93), 100m Freestyle (1:08.38).
Ersoy, Eren swims for Oakville Aquatic Club.
Ersoy, Eren has competed in 8 meets.