| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:46.95 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m Breaststroke | 1:47.60 | 2025 Alex Baumann Invitational | 2025-11-21 |
| 100m Freestyle | 1:22.94 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 100m IM | 1:34.56 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 200m Backstroke | 3:37.45 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m Breaststroke | 3:51.32 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m Freestyle | 3:01.92 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 200m IM | 3:28.20 | 2026 Steve Kingston Memorial | 2026-03-06 |
| 400m Freestyle | 6:58.63 | RHAC Fall Classic 2025 | 2025-10-24 |
| 50m Backstroke | 52.21 | RHAC Winter Jr. Sprint | 2025-12-20 |
| 50m Breaststroke | 50.72 | 2026 Central Region Div 2 SC Championships | 2026-02-20 |
| 50m Butterfly | 49.53 | RHAC Winter Jr. Sprint | 2025-12-20 |
| 50m Freestyle | 41.24 | RHAC Fall Classic 2025 | 2025-10-24 |
Geng, Jiahao's top personal bests include 100m Backstroke (1:46.95), 100m Breaststroke (1:47.60), 100m Freestyle (1:22.94), 100m IM (1:34.56), 200m Backstroke (3:37.45).
Geng, Jiahao swims for The Richmond Hill Aquatic Club.
Geng, Jiahao has competed in 8 meets.