| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:24.59 | Goldfins Winter Whiteout | 2026-02-06 |
| 100m Backstroke | 1:21.95 | 2025 Prairie Winter International | 2025-12-11 |
| 100m Breaststroke | 1:36.98 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 100m Butterfly | 1:19.63 | Goldfins Winter Whiteout | 2026-02-06 |
| 100m Butterfly | 1:17.60 | 2025 Prairie Winter International | 2025-12-11 |
| 100m IM | 1:20.22 | 2025 Prairie Winter International | 2025-12-11 |
| 200m Backstroke | 3:03.55 | Goldfins Winter Whiteout | 2026-02-06 |
| 200m Backstroke | 2:59.51 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 200m Butterfly | 3:16.15 | Winter Solstice | 2025-11-29 |
| 200m Freestyle | 2:37.21 | Goldfins Winter Whiteout | 2026-02-06 |
| 200m Freestyle | 2:32.85 | 2025 Prairie Winter International | 2025-12-11 |
| 200m IM | 2:58.07 | Goldfins Winter Whiteout | 2026-02-06 |
| 200m IM | 2:49.45 | 2025 Prairie Winter International | 2025-12-11 |
| 400m Freestyle | 5:39.59 | Spooktacular Goldfins Invitational 49 | 2025-10-24 |
| 50m Backstroke | 38.82 | Goldfins Winter Whiteout | 2026-02-06 |
| 50m Backstroke | 37.68 | Winter Solstice | 2025-11-29 |
| 50m Breaststroke | 43.14 | Winter Solstice | 2025-11-29 |
| 50m Butterfly | 34.97 | Goldfins Winter Whiteout | 2026-02-06 |
| 50m Butterfly | 35.01 | 2025 Prairie Winter International | 2025-12-11 |
| 50m Freestyle | 33.46 | Goldfins Winter Whiteout | 2026-02-06 |
| 50m Freestyle | 32.94 | 2025 Prairie Winter International | 2025-12-11 |
Klemmer, Kathryn's top personal bests include 100m Backstroke (1:24.59), 100m Backstroke (1:21.95), 100m Breaststroke (1:36.98), 100m Butterfly (1:19.63), 100m Butterfly (1:17.60).
Klemmer, Kathryn swims for Flatland Swimming.
Klemmer, Kathryn has competed in 5 meets.