swimIsaac Cho
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 20.89 | 2019-02-17 | LESI 8 & Under 2019 Championship Meet venue | |
| 50 Freestyle | SCY | 24.47 | AA+0.98s to AAA | 2026-02-08 | 2026 Michigan Open venue |
| 100 Freestyle | SCY | 53.15 | AA+1.96s to AAA | 2026-02-07 | 2026 Michigan Open venue |
| 200 Freestyle | SCY | 1:57.47 | A+0.38s to AA | 2026-02-08 | 2026 Michigan Open venue |
| 500 Freestyle | SCY | 5:46.16 | BB+15.37s to A | 2025-01-05 | 2025 CW Specialty Meet |
| 25 Backstroke | SCY | 22.76 | 2019-11-17 | 2019 Fall Breakout Meet slow pool | |
| 50 Backstroke | SCY | 29.24 | BB+0.35s to A | 2025-07-11 | USSC July Last Chance venue |
| 100 Backstroke | SCY | 1:03.20 | BB+2.01s to A | 2026-01-18 | SLA Arctic Blast 2026 venue |
| 25 Breaststroke | SCY | 29.32 | 2019-11-17 | 2019 Fall Breakout Meet slow pool | |
| 50 Breaststroke | SCY | 31.66 | AA+1.37s to AAA | 2026-01-16 | SLA Arctic Blast 2026 venue |
| 100 Breaststroke | SCY | 1:07.30 | A+1.11s to AA | 2026-02-07 | 2026 Michigan Open venue |
| 200 Breaststroke | SCY | 2:29.62 | A+5.63s to AA | 2026-02-08 | 2026 Michigan Open venue |
| 25 Butterfly | SCY | 19.86 | 2020-02-16 | LESI 8 & U Championships 2020 venue | |
| 50 Butterfly | SCY | 27.12 | AA+1.03s to AAA | 2026-01-16 | SLA Arctic Blast 2026 venue |
| 100 Butterfly | SCY | 59.73 | A+1.84s to AA | 2026-02-07 | 2026 Michigan Open venue |
| 200 Butterfly | SCY | 2:24.60 | BB+10.11s to A | 2025-02-16 | 2025 CW Championship Qualifier venue |
| 100 Individual Medley | SCY | 1:01.86 | 2025-03-08 | 2025 SCY MAGS Championship Meet venue | |
| 200 Individual Medley | SCY | 2:13.66 | A+3.87s to AA | 2026-01-17 | SLA Arctic Blast 2026 venue |
| 50 Freestyle | LCM | 27.88 | AA+0.99s to AAA | 2025-07-19 | 2025 LC MAGS Championship Meet fast pool |
| 100 Freestyle | LCM | 1:01.20 | AA+2.21s to AAA | 2025-07-18 | 2025 LC MAGS Championship Meet fast pool |
| 200 Freestyle | LCM | 2:21.88 | BB+1.29s to A | 2025-05-18 | 2025 CW May Showers venue |
| 400 Freestyle | LCM | 5:17.22 | BB+17.33s to A | 2024-05-17 | 2024 CW May Showers Meet venue |
| 50 Backstroke | LCM | 34.17 | BB+0.28s to A | 2025-07-18 | 2025 LC MAGS Championship Meet fast pool |
| 100 Backstroke | LCM | 1:16.45 | BB+4.76s to A | 2025-06-07 | Wolverine Invite venue |
| 50 Breaststroke | LCM | 37.81 | BB+0.02s to A | 2024-07-21 | 2024 MAGS Long Course Championship Meet venue |
| 100 Breaststroke | LCM | 1:21.00 | BB+0.41s to A | 2025-07-18 | 2025 LC MAGS Championship Meet fast pool |
| 200 Breaststroke | LCM | 2:53.73 | A+6.24s to AA | 2025-07-19 | 2025 LC MAGS Championship Meet fast pool |
| 50 Butterfly | LCM | 31.57 | A+0.98s to AA | 2025-06-01 | 2025 PCC Cruisin into Summer venue |
| 100 Butterfly | LCM | 1:08.73 | A+2.74s to AA | 2025-06-27 | 2025 CW Eric Namesnik Memorial Open venue |
| 200 Individual Medley | LCM | 2:39.76 | BB+2.87s to A | 2025-05-31 | 2025 PCC Cruisin into Summer venue |
| 400 Individual Medley | LCM | 5:11.26 | AA+3.77s to AAA | 2025-06-27 | 2025 CW Eric Namesnik Memorial Open |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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 | 34.75 | flying | 200 Free Relay (leg 4) | 2020-02-29 | Lake Erie Junior Olympic Championship Meet |
| 50 Freestyle | SCY | 35.10 | flying | 200 Medley Relay (leg 4) | 2020-03-01 | Lake Erie Junior Olympic Championship Meet |
| 50 Freestyle | LCM | 42.22 | flying | 200 Free Relay (leg 4) | 2019-07-19 | 2019 Lake Erie LC Age Group Championship Meet |
| 50 Freestyle | LCM | 37.79 | flying | 200 Medley Relay (leg 4) | 2021-05-16 | Robert F. Busbey Invitational |
| 100 Freestyle | LCM | 1:24.21 | flying | 400 Free Relay (leg 3) | 2021-06-20 | Holtrey Summer Classic |
| 50 Backstroke | LCM | 50.44 | flat | 200 Medley Relay | 2019-07-21 | 2019 Lake Erie LC Age Group Championship Meet |
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 13-14 · LCM
2695 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:17.22 | 558 |
| 200 BR LCM | 2:53.73 | 670 |
| 200 IM LCM | 2:39.76 | 633 |
| 400 IM LCM | 5:11.26 | 834 |
| 200 BK LCM | — | 0 |
| 200 FL LCM | — | 0 |
IMR 13-14 · SCY
3471 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:57.47 | 753 |
| 100 BK SCY | 1:03.20 | 606 |
| 100 BR SCY | 1:07.30 | 722 |
| 100 FL SCY | 59.73 | 694 |
| 200 IM SCY | 2:13.66 | 696 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 53.15
Front half 25.61s · back half 27.54s
200 Freestyle SCY 1:57.47
Front half 56.16s · back half 61.31s
100 Backstroke SCY 1:03.20
Front half 30.43s · back half 32.77s
100 Breaststroke SCY 1:07.30
Front half 31.91s · back half 35.39s
200 Breaststroke SCY 2:29.62
Front half 71.82s · back half 77.80s
100 Butterfly SCY 59.73
Front half 27.86s · back half 31.87s
200 Butterfly SCY 2:24.60
Front half 66.35s · back half 78.25s
100 Individual Medley SCY 1:01.86
Front half 29.20s · back half 32.66s
200 Individual Medley SCY 2:13.66
Front half 64.19s · back half 69.47s
100 Freestyle LCM 1:01.20
Front half 29.29s · back half 31.91s
200 Freestyle LCM 2:21.88
Front half 68.94s · back half 72.94s
400 Freestyle LCM 5:17.22
Front half 154.62s · back half 162.60s
100 Backstroke LCM 1:16.45
Front half 37.88s · back half 38.57s
100 Breaststroke LCM 1:21.00
Front half 38.22s · back half 42.78s
200 Breaststroke LCM 2:53.73
Front half 84.99s · back half 88.74s
100 Butterfly LCM 1:08.73
Front half 31.92s · back half 36.81s
200 Individual Medley LCM 2:39.76
Front half 76.34s · back half 83.42s
Progression
Faster times are higher. One card per event, all courses & history.