Marcus Rosen
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 20.63 | 2024-10-04 | October 2024 Sizzler venue | |
| 50 Freestyle | SCY | 40.24 | +5.15s to B | 2025-12-06 | 2025 Pompano Beach Santa Claus Meet venue |
| 100 Freestyle | SCY | 1:30.29 | +14.20s to B | 2025-06-07 | June Bloom 2025 |
| 25 Backstroke | SCY | 27.18 | 2024-05-03 | Central Park Series #1 venue | |
| 50 Backstroke | SCY | 50.34 | +9.15s to B | 2025-12-06 | 2025 Pompano Beach Santa Claus Meet venue |
| 100 Backstroke | SCY | 1:48.41 | +18.62s to B | 2026-02-08 | 2026 Matt Mounts Memorial Swim Meet fast pool |
| 25 Breaststroke | SCY | 27.69 | 2024-10-04 | October 2024 Sizzler venue | |
| 50 Breaststroke | SCY | 1:01.65 | +14.76s to B | 2026-02-07 | 2026 Matt Mounts Memorial Swim Meet fast pool |
| 100 Breaststroke | SCY | 2:15.19 | +34.90s to B | 2026-02-08 | 2026 Matt Mounts Memorial Swim Meet fast pool |
| 25 Butterfly | SCY | 24.85 | 2024-10-04 | October 2024 Sizzler venue | |
| 50 Butterfly | SCY | 57.69 | +17.60s to B | 2026-02-07 | 2026 Matt Mounts Memorial Swim Meet fast pool |
| 100 Individual Medley | SCY | 1:58.87 | +30.78s to B | 2025-02-08 | Friendship Meet 2025 venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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.
IMX / IMR
IMX 11-12 · SCY
291 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:48.41 | 165 |
| 100 BR SCY | 2:15.19 | 126 |
| 500 FR SCY | — | 0 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 11-12 · SCY
542 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK SCY | 50.34 | 175 |
| 50 BR SCY | 1:01.65 | 133 |
| 50 FL SCY | 57.69 | 99 |
| 100 IM SCY | 1:58.87 | 135 |
| 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 Backstroke SCY 1:48.41
Front half 50.66s · back half 57.75s
100 Breaststroke SCY 2:15.19
Front half 62.21s · back half 72.98s
100 Individual Medley SCY 1:58.87
Front half 58.95s · back half 59.92s
Progression
Faster times are higher. One card per event, all courses & history.