| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:09.81 | AAA LCM #3 | 2025-05-23 |
| 100m Backstroke | 1:01.71 | 2025 Prairie Winter International | 2025-12-11 |
| 100m Breaststroke | 1:13.36 | East Coast Championships | 2025-07-10 |
| 100m Breaststroke | 1:07.14 | 2025 Prairie Winter International | 2025-12-11 |
| 100m Butterfly | 1:02.19 | East Coast Championships | 2025-07-10 |
| 100m Butterfly | 1:00.36 | 2025 Prairie Winter International | 2025-12-11 |
| 100m IM | 1:01.92 | Bison Sprint IM Invitational | 2026-01-10 |
| 200m Backstroke | 2:20.00 | Seals West Side Challenge | 2025-11-28 |
| 200m Breaststroke | 2:31.34 | Edmonton Open 2026 | 2026-01-30 |
| 200m Breaststroke | 2:21.98 | 2025 Prairie Winter International | 2025-12-11 |
| 200m Butterfly | 2:19.99 | East Coast Championships | 2025-07-10 |
| 200m Butterfly | 2:14.52 | Seals West Side Challenge | 2025-11-28 |
| 200m Freestyle | 2:05.84 | The Steve Molloy Invitational 2025 | 2025-11-07 |
| 200m IM | 2:20.84 | Edmonton Open 2026 | 2026-01-30 |
| 200m IM | 2:11.40 | 2025 Prairie Winter International | 2025-12-11 |
| 400m IM | 5:01.65 | 2025 Canada Games | 2025-08-10 |
| 400m IM | 4:41.38 | 2025 Prairie Winter International | 2025-12-11 |
| 50m Backstroke | 29.46 | Bison Sprint IM Invitational | 2026-01-10 |
| 50m Breaststroke | 30.91 | 2025 Prairie Winter International | 2025-12-11 |
| 50m Butterfly | 28.29 | East Coast Championships | 2025-07-10 |
| 50m Butterfly | 27.57 | 2025 Prairie Winter International | 2025-12-11 |
| 50m Freestyle | 25.99 | Bison Sprint IM Invitational | 2026-01-10 |
Matteau, Nicholas's top personal bests include 100m Backstroke (1:09.81), 100m Backstroke (1:01.71), 100m Breaststroke (1:13.36), 100m Breaststroke (1:07.14), 100m Butterfly (1:02.19).
Matteau, Nicholas swims for Manta Swim Club.
Matteau, Nicholas has competed in 11 meets.