| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:52.05 | OSAC Devo Challenge 2026 | 2026-02-22 |
| 100m Breaststroke | 2:06.01 | Collingwood Winter Invitational | 2025-12-20 |
| 100m Butterfly | 2:05.92 | 2025 Huronia Region LC Team Challenge | 2025-06-05 |
| 100m Freestyle | 1:58.75 | 2025 Huronia Region LC Team Challenge | 2025-06-05 |
| 100m Freestyle | 1:43.55 | OSAC Team Challenge Short Course Swim Meet | 2025-11-14 |
| 200m Backstroke | 3:51.69 | 2025 Huronia Region LC Team Challenge | 2025-06-05 |
| 200m Backstroke | 3:38.56 | OSAC Team Challenge Short Course Swim Meet | 2025-11-14 |
| 200m Freestyle | 3:34.44 | OSAC Devo Challenge 2026 | 2026-02-22 |
| 200m IM | 4:05.45 | GMAC Winter Pentathlon | 2026-01-10 |
| 200m IM | 3:57.43 | OSAC Team Challenge Short Course Swim Meet | 2025-11-14 |
| 400m IM | 9:02.10 | 2025 Huronia Region LC Team Challenge | 2025-06-05 |
| 50m Backstroke | 49.97 | 2025 Huronia Region LC Team Challenge | 2025-06-05 |
| 50m Backstroke | 47.85 | OSAC Team Challenge Short Course Swim Meet | 2025-11-14 |
| 50m Breaststroke | 1:02.50 | GMAC Winter Pentathlon | 2026-01-10 |
| 50m Breaststroke | 1:00.66 | OSAC Team Challenge Short Course Swim Meet | 2025-11-14 |
| 50m Butterfly | 50.00 | GMAC Winter Pentathlon | 2026-01-10 |
| 50m Butterfly | 50.21 | OSAC Devo Challenge 2026 | 2026-02-22 |
| 50m Freestyle | 45.64 | GMAC Winter Pentathlon | 2026-01-10 |
| 50m Freestyle | 44.84 | Collingwood Winter Invitational | 2025-12-20 |
Clark, Greta's top personal bests include 100m Backstroke (1:52.05), 100m Breaststroke (2:06.01), 100m Butterfly (2:05.92), 100m Freestyle (1:58.75), 100m Freestyle (1:43.55).
Clark, Greta swims for BREAKERS SWIM TEAM.
Clark, Greta has competed in 6 meets.