| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:17.71 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m Breaststroke | 1:44.98 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 100m Breaststroke | 1:36.79 | MAC Fall Fest Invitational | 2025-10-18 |
| 100m Butterfly | 1:26.40 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m Freestyle | 1:15.28 | June Performance Meet 2025 | 2025-06-06 |
| 100m Freestyle | 1:09.51 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m IM | 1:22.32 | RHAC Fall Classic 2025 | 2025-10-24 |
| 200m Backstroke | 2:53.41 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Backstroke | 2:47.26 | 2025 MSSAC Open | 2025-12-19 |
| 200m Breaststroke | 3:42.24 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Breaststroke | 3:36.96 | 2025 MSSAC Open | 2025-12-19 |
| 200m Butterfly | 3:38.11 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Freestyle | 2:40.32 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 200m Freestyle | 2:34.72 | 2025 MSSAC Open | 2025-12-19 |
| 200m IM | 3:06.04 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 200m IM | 2:56.28 | RHAC Fall Classic 2025 | 2025-10-24 |
| 400m Freestyle | 5:22.48 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 400m IM | 6:29.92 | RHAC Winter Invitational 2026 | 2026-01-16 |
| 400m IM | 6:26.28 | 2025 MSSAC Open | 2025-12-19 |
| 50m Backstroke | 35.59 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Breaststroke | 47.49 | June Performance Meet 2025 | 2025-06-06 |
| 50m Breaststroke | 44.03 | RHAC Fall Classic 2025 | 2025-10-24 |
| 50m Butterfly | 37.51 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 50m Butterfly | 35.90 | RHAC Fall Classic 2025 | 2025-10-24 |
| 50m Freestyle | 32.26 | 2026 Mallards Winter LC Invitational | 2026-01-30 |
| 50m Freestyle | 31.00 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 800m Freestyle | 11:08.94 | 2025 Alex Baumann Invitational | 2025-11-21 |
Petrenko, Nathaniel's top personal bests include 100m Backstroke (1:17.71), 100m Breaststroke (1:44.98), 100m Breaststroke (1:36.79), 100m Butterfly (1:26.40), 100m Freestyle (1:15.28).
Petrenko, Nathaniel swims for Aurora Ducks Swimming Club.
Petrenko, Nathaniel has competed in 9 meets.