| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Breaststroke | 1:37.67 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Freestyle | 1:26.51 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 200m Backstroke | 3:26.53 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 200m Freestyle | 3:07.68 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 200m IM | 3:21.40 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 50m Backstroke | 47.16 | Scar Red vs White #1 | 2025-10-04 |
| 50m Breaststroke | 47.53 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 50m Butterfly | 42.08 | SCAR Cindy Nicholas Memorial Meet | 2025-11-01 |
| 50m Freestyle | 38.84 | 2025 York Invitational | 2025-11-15 |
Kunz, Sebastian's top personal bests include 100m Breaststroke (1:37.67), 100m Freestyle (1:26.51), 200m Backstroke (3:26.53), 200m Freestyle (3:07.68), 200m IM (3:21.40).
Kunz, Sebastian swims for Scarborough Swim Club.
Kunz, Sebastian has competed in 7 meets.