swimMarkus Cho
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.01 | AA+0.32s to AAA | 2025-05-17 | 2025 USSC Spring Into Summer venue |
| 100 Freestyle | SCY | 50.44 | AA+0.65s to AAA | 2025-03-07 | 2025 SCY MAGS Championship Meet venue |
| 50 Backstroke | SCY | 24.93 | AAA+0.44s to AAAA | 2026-03-27 | 2026 SCY ULTRA Championship Meet venue |
| 100 Backstroke | SCY | 57.99 | A+0.90s to AA | 2025-05-17 | 2025 USSC Spring Into Summer venue |
| 200 Backstroke | SCY | 2:17.98 | BB+7.89s to A | 2024-11-24 | 2024 PA/OLY/dROP Tri-Meet venue |
| 50 Breaststroke | SCY | 26.40 | AAAA | 2026-03-29 | 2026 SCY ULTRA Championship Meet venue |
| 100 Breaststroke | SCY | 1:02.92 | AA+1.13s to AAA | 2025-03-14 | 2025 Boys MHSAA Division 2 Championships venue |
| 200 Breaststroke | SCY | 2:10.53 | AAA+1.94s to AAAA | 2026-03-28 | 2026 SCY ULTRA Championship Meet venue |
| 50 Butterfly | SCY | 23.42 | AAAA | 2026-03-29 | 2026 SCY ULTRA Championship Meet venue |
| 100 Butterfly | SCY | 1:00.60 | BB+1.71s to A | 2024-10-20 | 2024 OLY Fall Classic venue |
| 200 Butterfly | SCY | 2:24.07 | B+1.08s to BB | 2024-11-24 | 2024 PA/OLY/dROP Tri-Meet venue |
| 100 Individual Medley | SCY | 52.89 | 2026-03-28 | 2026 SCY ULTRA Championship Meet venue | |
| 200 Individual Medley | SCY | 2:04.62 | AA+3.43s to AAA | 2025-03-14 | 2025 Boys MHSAA Division 2 Championships venue |
| 400 Individual Medley | SCY | 4:59.43 | BB+15.24s to A | 2024-10-18 | 2024 OLY Fall Classic venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.95 | flat | 200 Free Relay | 2025-03-09 | 2025 SCY MAGS Championship Meet |
| 100 Freestyle | SCY | 49.75 | flying | 400 Free Relay (leg 2) | 2025-03-07 | 2025 SCY MAGS Championship Meet |
| 200 Freestyle | SCY | 1:53.43 | flat | 800 Free Relay | 2025-03-08 | 2025 SCY MAGS Championship Meet |
| 50 Backstroke | SCY | 27.17 | flat | 200 Medley Relay | 2025-03-09 | 2025 SCY MAGS Championship Meet |
| 100 Backstroke | SCY | 59.82 | flat | 400 Medley Relay | 2025-03-08 | 2025 SCY MAGS Championship Meet |
| 50 Breaststroke | SCY | 26.35 | flying | 200 Medley Relay (leg 2) | 2026-03-27 | 2026 SCY ULTRA Championship Meet |
| 100 Breaststroke | SCY | 58.44 | flying | 400 Medley Relay (leg 2) | 2026-03-28 | 2026 SCY ULTRA 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 15-16 · SCY
3152 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK SCY | 2:17.98 | 516 |
| 200 BR SCY | 2:10.53 | 884 |
| 200 FL SCY | 2:24.07 | 478 |
| 200 IM SCY | 2:04.62 | 749 |
| 400 IM SCY | 4:59.43 | 525 |
| 500 FR SCY | — | 0 |
IMR 15-16 · SCY
2760 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 57.99 | 667 |
| 100 BR SCY | 1:02.92 | 770 |
| 100 FL SCY | 1:00.60 | 574 |
| 200 IM SCY | 2:04.62 | 749 |
| 200 FR SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 50.44
Front half 24.15s · back half 26.29s
100 Backstroke SCY 57.99
Front half 28.09s · back half 29.90s
200 Backstroke SCY 2:17.98
Front half 67.57s · back half 70.41s
100 Breaststroke SCY 1:02.92
Front half 29.04s · back half 33.88s
200 Breaststroke SCY 2:10.53
Front half 62.27s · back half 68.26s
100 Butterfly SCY 1:00.60
Front half 28.32s · back half 32.28s
200 Butterfly SCY 2:24.07
Front half 67.69s · back half 76.38s
100 Individual Medley SCY 52.89
Front half 24.46s · back half 28.43s
200 Individual Medley SCY 2:04.62
Front half 59.12s · back half 65.50s
400 Individual Medley SCY 4:59.43
Front half 138.83s · back half 160.60s
Progression
Faster times are higher. One card per event, all courses & history.