swimYohann Guerrero Cho
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 100 Freestyle | SCY | 50.61 | 2025-02-14 | 2025 SI Presidents' Day Senior Classic | |
| 200 Freestyle | SCY | 1:45.86 | 2024-02-18 | 2024 President's Day Senior Classic Meet venue | |
| 500 Freestyle | SCY | 4:40.16 | 2025-02-14 | 2025 SI Presidents' Day Senior Classic | |
| 1000 Freestyle | SCY | 9:43.14 | 2024-02-16 | 2024 President's Day Senior Classic Meet venue | |
| 1650 Freestyle | SCY | 16:14.11 | 2024-02-19 | 2024 President's Day Senior Classic Meet venue | |
| 100 Breaststroke | SCY | 1:01.88 | 2026-02-13 | 2026 SI Presidents' Day Senior Classic - copi | |
| 200 Individual Medley | SCY | 1:57.89 | 2026-02-13 | 2026 SI Presidents' Day Senior Classic - copi | |
| 400 Individual Medley | SCY | 4:09.53 | 2026-02-13 | 2026 SI Presidents' Day Senior Classic - copi | |
| 200 Freestyle | LCM | 2:00.08 | 2025-07-11 | 2025 LAI Entries venue | |
| 400 Freestyle | LCM | 4:19.13 | 2025-07-12 | 2025 LAI Entries venue | |
| 1500 Freestyle | LCM | 17:30.03 | 2025-07-11 | 2025 LAI Entries venue |
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.71 | flying | 200 Free Relay (leg 3) | 2024-02-18 | 2024 President's Day Senior Classic Meet |
| 100 Freestyle | SCY | 49.80 | flying | 400 Medley Relay (leg 4) | 2026-02-15 | 2026 SI Presidents' Day Senior Classic - copi |
Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.
PR splits
200 Freestyle SCY 1:45.86
Front half 52.16s · back half 53.70s
1000 Freestyle SCY 9:43.14
Front half 287.93s · back half 295.21s
1650 Freestyle SCY 16:14.11
200 Freestyle LCM 2:00.08
Front half 58.86s · back half 61.22s
400 Freestyle LCM 4:19.13
Front half 124.57s · back half 134.56s
1500 Freestyle LCM 17:30.03
Progression
Faster times are higher. One card per event, all courses & history.