swimNathan Cho
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 15.85 | 2023-12-02 | NOVA December Dip venue | |
| 50 Freestyle | SCY | 28.37 | AAA+0.78s to AAAA | 2026-03-15 | 2026 Virginia Swimming SC Age Group Champions venue |
| 100 Freestyle | SCY | 1:02.72 | AAA+1.63s to AAAA | 2026-03-14 | 2026 Virginia Swimming SC Age Group Champions venue |
| 200 Freestyle | SCY | 2:23.58 | AA+4.49s to AAA | 2026-03-12 | 2026 Virginia Swimming SC Age Group Champions |
| 500 Freestyle | SCY | 6:24.97 | AA+14.98s to AAA | 2026-02-13 | Central District SC 12 & Under Championship - venue |
| 25 Backstroke | SCY | 18.71 | 2024-01-21 | NOVA New Year's Kick Off venue | |
| 50 Backstroke | SCY | 33.89 | AAA+1.50s to AAAA | 2026-03-12 | 2026 Virginia Swimming SC Age Group Champions |
| 100 Backstroke | SCY | 1:14.69 | AA+1.90s to AAA | 2025-12-11 | 2025 East Coast WinterFest |
| 25 Breaststroke | SCY | 21.56 | 2023-12-03 | NOVA December Dip venue | |
| 50 Breaststroke | SCY | 40.44 | A+0.25s to AA | 2026-01-24 | 2026 WAC Mike Willard Polar Plunge venue |
| 100 Breaststroke | SCY | 1:29.73 | A+2.04s to AA | 2025-12-11 | 2025 East Coast WinterFest |
| 25 Butterfly | SCY | 17.67 | 2023-12-02 | NOVA December Dip venue | |
| 50 Butterfly | SCY | 32.72 | AA+0.13s to AAA | 2025-12-11 | 2025 East Coast WinterFest |
| 100 Butterfly | SCY | 1:18.30 | AA+3.41s to AAA | 2025-09-26 | 2025 SwimRVA Blastoff Meet |
| 100 Individual Medley | SCY | 1:13.68 | AA+0.49s to AAA | 2026-03-13 | 2026 Virginia Swimming SC Age Group Champions venue |
| 200 Individual Medley | SCY | 2:46.86 | A+0.97s to AA | 2026-01-24 | 2026 WAC Mike Willard Polar Plunge venue |
| 50 Freestyle | LCM | 35.51 | A+1.12s to AA | 2024-06-29 | NOVA Firecracker Classic slow pool |
| 100 Freestyle | LCM | 1:21.94 | BB+1.75s to A | 2024-07-14 | 2024 RAYS Summer Awards venue |
| 200 Freestyle | LCM | 2:58.96 | BB+5.27s to A | 2024-07-12 | 2024 RAYS Summer Awards venue |
| 400 Freestyle | LCM | 6:16.51 | BB+9.32s to A | 2024-06-27 | NOVA Firecracker Classic slow pool |
| 50 Backstroke | LCM | 42.47 | A+1.38s to AA | 2024-07-13 | 2024 RAYS Summer Awards venue |
| 100 Backstroke | LCM | 1:30.83 | A+2.64s to AA | 2024-07-14 | 2024 RAYS Summer Awards venue |
| 50 Breaststroke | LCM | 51.93 | BB+4.04s to A | 2024-06-28 | NOVA Firecracker Classic slow pool |
| 100 Breaststroke | LCM | 2:25.52 | +12.43s to B | 2022-01-01 | 2021 VSI Regional Summer Awards - LSC 2 |
| 50 Butterfly | LCM | 41.05 | BB+0.46s to A | 2024-07-14 | 2024 RAYS Summer Awards venue |
| 100 Butterfly | LCM | 1:44.83 | BB+8.54s to A | 2024-06-28 | NOVA Firecracker Classic slow pool |
| 200 Individual Medley | LCM | 3:30.54 | BB+12.25s to A | 2024-06-29 | NOVA Firecracker Classic slow pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 30.21 | flying | 200 Free Relay (leg 4) | 2025-04-03 | 2025 Eastern Zone SC Age Group Championships |
| 50 Freestyle | SCY | 30.40 | flying | 200 Medley Relay (leg 4) | 2025-04-05 | 2025 Eastern Zone SC Age Group Championships |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
IMX / IMR
IMX 10 & under · SCY
3701 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:23.58 | 789 |
| 100 BK SCY | 1:14.69 | 788 |
| 100 BR SCY | 1:29.73 | 677 |
| 100 FL SCY | 1:18.30 | 708 |
| 200 IM SCY | 2:46.86 | 739 |
IMR 10 & under · SCY
4172 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:02.72 | 906 |
| 50 BK SCY | 33.89 | 856 |
| 50 BR SCY | 40.44 | 728 |
| 50 FL SCY | 32.72 | 833 |
| 100 IM SCY | 1:13.68 | 849 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:02.72
Front half 29.33s · back half 33.39s
500 Freestyle SCY 6:24.97
Front half 192.70s · back half 192.27s
100 Individual Medley SCY 1:13.68
Front half 33.58s · back half 40.10s
100 Freestyle LCM 1:21.94
Front half 40.75s · back half 41.19s
200 Freestyle LCM 2:58.96
Front half 88.15s · back half 90.81s
400 Freestyle LCM 6:16.51
Front half 185.66s · back half 190.85s
100 Backstroke LCM 1:30.83
Front half 44.89s · back half 45.94s
200 Individual Medley LCM 3:30.54
Front half 100.09s · back half 110.45s
Progression
Faster times are higher. One card per event, all courses & history.