| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:13.80 | Western Region Long Course Championships | 2025-06-13 |
| 100m Backstroke | 1:04.31 | 2025 NYAC Cup | 2025-11-14 |
| 100m Breaststroke | 1:16.38 | 2025 NYAC Cup | 2025-11-14 |
| 100m Butterfly | 1:06.10 | 2025 Age Group International SC | 2025-11-27 |
| 100m Freestyle | 58.14 | MAC Winter Invitational | 2026-01-22 |
| 100m Freestyle | 55.64 | BAC Team Showdown 2025 | 2025-12-12 |
| 100m IM | 1:07.49 | Dean Boles Invitational Meet | 2026-01-10 |
| 200m Backstroke | 2:29.58 | MAC Winter Invitational | 2026-01-22 |
| 200m Backstroke | 2:17.50 | BAC Team Showdown 2025 | 2025-12-12 |
| 200m Breaststroke | 2:59.47 | Dean Boles Invitational Meet | 2026-01-10 |
| 200m Freestyle | 2:09.89 | MAC Winter Invitational | 2026-01-22 |
| 200m Freestyle | 2:03.67 | 2025 NYAC Cup | 2025-11-14 |
| 200m IM | 2:32.10 | Western Region Long Course Championships | 2025-06-13 |
| 200m IM | 2:19.81 | Western Region Short Course Championships | 2026-02-12 |
| 400m Freestyle | 4:41.67 | Western Region Long Course Championships | 2025-06-13 |
| 400m Freestyle | 4:25.97 | 2025 NYAC Cup | 2025-11-14 |
| 400m IM | 5:00.78 | 2025 Age Group International SC | 2025-11-27 |
| 50m Backstroke | 32.36 | MAC Winter Invitational | 2026-01-22 |
| 50m Backstroke | 31.47 | 2025 NYAC Cup | 2025-11-14 |
| 50m Breaststroke | 36.68 | MAC Winter Invitational | 2026-01-22 |
| 50m Butterfly | 29.42 | Dean Boles Invitational Meet | 2026-01-10 |
| 50m Freestyle | 26.82 | Western Region Long Course Championships | 2025-06-13 |
| 50m Freestyle | 25.28 | Western Region Short Course Championships | 2026-02-12 |
Ballantyne, Rhys's top personal bests include 100m Backstroke (1:13.80), 100m Backstroke (1:04.31), 100m Breaststroke (1:16.38), 100m Butterfly (1:06.10), 100m Freestyle (58.14).
Ballantyne, Rhys swims for Region of Waterloo Swim Club.
Ballantyne, Rhys has competed in 8 meets.