| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 2:09.94 | 2026 Future Stars League #3 - NYAC | 2026-02-08 |
| 100m Freestyle | 1:38.16 | Wilmot Aces Spring Classic 2026 | 2026-03-13 |
| 100m IM | 2:03.71 | 2025 York Santa Meet | 2025-12-14 |
| 25m Backstroke | 27.65 | COBRA Intraclub Gold | 2025-10-18 |
| 25m Breaststroke | 28.22 | 2025 York Santa Meet | 2025-12-14 |
| 25m Butterfly | 24.38 | 2025 York Santa Meet | 2025-12-14 |
| 25m Freestyle | 24.46 | COBRA Intraclub Gold | 2025-10-18 |
| 50m Breaststroke | 59.75 | Wilmot Aces Spring Classic 2026 | 2026-03-13 |
| 50m Butterfly | 48.60 | Wilmot Aces Spring Classic 2026 | 2026-03-13 |
| 50m Freestyle | 47.20 | COBRA 2026 Stephen Clarke Classic | 2026-01-10 |
Buchanan, Tobias's top personal bests include 100m Breaststroke (2:09.94), 100m Freestyle (1:38.16), 100m IM (2:03.71), 25m Backstroke (27.65), 25m Breaststroke (28.22).
Buchanan, Tobias swims for COBRA Swim Club.
Buchanan, Tobias has competed in 6 meets.