| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:25.83 | 2025 NYAC Cup | 2025-11-14 |
| 100m Breaststroke | 1:43.39 | 2025 BTSC Trojan Cup | 2025-12-12 |
| 100m Butterfly | 1:45.19 | CCSC June Invitational | 2025-06-21 |
| 100m Butterfly | 1:41.46 | 2025 Barrie Aquafest | 2025-10-31 |
| 100m Freestyle | 1:12.27 | MAC Winter Invitational | 2026-01-22 |
| 100m Freestyle | 1:11.21 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 100m IM | 1:25.88 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 200m Backstroke | 2:53.15 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Backstroke | 2:58.43 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 200m Freestyle | 2:33.26 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 200m Freestyle | 2:36.33 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 200m IM | 3:29.62 | CCSC June Invitational | 2025-06-21 |
| 200m IM | 3:00.93 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 400m Freestyle | 5:35.11 | MAC Winter Invitational | 2026-01-22 |
| 400m Freestyle | 5:35.61 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 50m Backstroke | 37.19 | 2026 Ontario Age Groups - MPAC | 2026-03-05 |
| 50m Backstroke | 37.21 | 2026 Huronia SC Regional Championships | 2026-02-06 |
| 50m Breaststroke | 45.99 | MAC Winter Invitational | 2026-01-22 |
| 50m Breaststroke | 48.22 | MAC Fall Fest Invitational | 2025-10-18 |
| 50m Butterfly | 40.55 | MAC Fall Fest Invitational | 2025-10-18 |
| 50m Freestyle | 32.88 | MAC Winter Invitational | 2026-01-22 |
| 50m Freestyle | 32.82 | 2025 NYAC Cup | 2025-11-14 |
| 800m Freestyle | 11:54.87 | 2025 BTSC Trojan Cup | 2025-12-12 |
Kim, Esther's top personal bests include 100m Backstroke (1:25.83), 100m Breaststroke (1:43.39), 100m Butterfly (1:45.19), 100m Butterfly (1:41.46), 100m Freestyle (1:12.27).
Kim, Esther swims for Barrie Trojan Swim Club.
Kim, Esther has competed in 8 meets.