| Event | Time | Meet | Date |
|---|---|---|---|
| 100m Backstroke | 1:20.72 | Western Transmountain Festival II | 2026-02-17 |
| 100m Breaststroke | 1:33.14 | Pugsley's Plunge 2026 | 2026-01-16 |
| 100m Butterfly | 1:36.13 | Pugsley's Plunge 2026 | 2026-01-16 |
| 100m Freestyle | 1:11.42 | Pugsley's Plunge 2026 | 2026-01-16 |
| 100m IM | 1:21.92 | Cascade Speed Meet 2025 Provincial Series #1 | 2025-11-08 |
| 200m Backstroke | 2:54.64 | Pugsley's Plunge 2026 | 2026-01-16 |
| 200m Freestyle | 2:35.53 | Western Transmountain Festival II | 2026-02-17 |
| 400m Freestyle | 5:30.83 | Sandy Ferris Age Group Food Bank Challenge 2025 | 2025-12-19 |
| 400m IM | 6:48.29 | Pugsley's Plunge 2026 | 2026-01-16 |
| 50m Backstroke | 37.49 | Sandy Ferris Age Group Food Bank Challenge 2025 | 2025-12-19 |
| 50m Breaststroke | 40.93 | Cascade Speed Meet 2025 Provincial Series #1 | 2025-11-08 |
| 50m Butterfly | 35.46 | Western Transmountain Festival II | 2026-02-17 |
| 50m Freestyle | 31.88 | Cascade Speed Meet 2025 Provincial Series #1 | 2025-11-08 |
Bataa, Nandin-Erdene's top personal bests include 100m Backstroke (1:20.72), 100m Breaststroke (1:33.14), 100m Butterfly (1:36.13), 100m Freestyle (1:11.42), 100m IM (1:21.92).
Bataa, Nandin-Erdene swims for Cascade Swim Club.
Bataa, Nandin-Erdene has competed in 7 meets.