| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:25.73 | June Performance Meet 2025 | 2025-06-06 |
| 100m Backstroke | 1:21.11 | 2025 NYAC Cup | 2025-11-14 |
| 100m Breaststroke | 1:35.10 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Butterfly | 1:19.92 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 100m Butterfly | 1:20.87 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 100m Freestyle | 1:14.38 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 100m Freestyle | 1:11.69 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 200m Backstroke | 3:04.59 | 2025 Central Region Div 1 LC Championships | 2025-06-20 |
| 200m Backstroke | 2:56.21 | 2025 NYAC Cup | 2025-11-14 |
| 200m Breaststroke | 3:30.38 | 2025 NYAC Cup | 2025-11-14 |
| 200m Butterfly | 3:09.50 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Butterfly | 3:09.59 | 2025 NYAC Cup | 2025-11-14 |
| 200m Freestyle | 2:54.57 | MAC Rising Star #2 | 2025-05-30 |
| 200m Freestyle | 2:46.05 | 2025 OAK Brad Townsend Fall Classic | 2025-10-17 |
| 200m IM | 3:04.58 | Scar Pan Am Winter Classic | 2026-01-16 |
| 200m IM | 2:59.84 | David Lawson Invitational 2026 | 2026-01-23 |
| 50m Backstroke | 36.84 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Backstroke | 36.55 | David Lawson Invitational 2026 | 2026-01-23 |
| 50m Breaststroke | 50.25 | June Performance Meet 2025 | 2025-06-06 |
| 50m Breaststroke | 44.49 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Butterfly | 34.16 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Butterfly | 34.65 | 2026 Central Region Div 1 SC Championships | 2026-02-06 |
| 50m Freestyle | 30.84 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Freestyle | 32.57 | 2025 NYAC Cup | 2025-11-14 |
| 800m Freestyle | 12:13.65 | David Lawson Invitational 2026 | 2026-01-23 |
Tanu-Koh, Emma's top personal bests include 100m Backstroke (1:25.73), 100m Backstroke (1:21.11), 100m Breaststroke (1:35.10), 100m Butterfly (1:19.92), 100m Butterfly (1:20.87).
Tanu-Koh, Emma swims for Oakville Aquatic Club.
Tanu-Koh, Emma has competed in 9 meets.