Mitchell Rosenfeld
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 42.09 | +3.80s to B | 2025-11-29 | 2025 MR RA Thanksgiving Time Trials |
| 100 Freestyle | SCY | 1:36.30 | +7.81s to B | 2026-02-06 | 2026 MR COND Last Chance Invitational |
| 50 Backstroke | SCY | 39.82 | BB+2.03s to A | 2025-11-08 | 2025 MR PAC Maria Parmanan Invitational |
| 100 Backstroke | SCY | 1:29.43 | BB+9.54s to A | 2025-11-08 | 2025 MR PAC Maria Parmanan Invitational |
| 50 Breaststroke | SCY | 53.77 | +0.28s to B | 2026-03-07 | 2026 MR AGUA Last Chance Invitational venue |
| 100 Breaststroke | SCY | 2:03.46 | +7.97s to B | 2025-11-14 | 2025 MR COND November IMX Invitational |
| 50 Butterfly | SCY | 1:03.65 | +17.16s to B | 2025-11-08 | 2025 MR PAC Maria Parmanan Invitational venue |
| 50 Backstroke | LCM | 52.68 | B+3.39s to BB | 2026-05-01 | 2026 MR COND May Meters Matter Invitational |
| 100 Breaststroke | LCM | 2:12.58 | B+13.19s to BB | 2026-05-02 | 2026 MR COND May Meters Matter Invitational fast pool |
| 100 Butterfly | LCM | 1:35.00 | A+4.31s to AA | 2026-05-01 | 2026 MR COND May Meters Matter Invitational |
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.
IMX / IMR
IMX 10 & under · LCM
918 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BR LCM | 2:12.58 | 330 |
| 100 FL LCM | 1:35.00 | 588 |
| 200 FR LCM | — | 0 |
| 100 BK LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 10 & under · SCY
1200 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:36.30 | 250 |
| 50 BK SCY | 39.82 | 528 |
| 50 BR SCY | 53.77 | 309 |
| 50 FL SCY | 1:03.65 | 113 |
| 100 IM 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 1:36.30
Front half 47.26s · back half 49.04s
100 Breaststroke SCY 2:03.46
Front half 60.04s · back half 63.42s
100 Breaststroke LCM 2:12.58
Front half 63.44s · back half 69.14s
100 Butterfly LCM 1:35.00
Progression
Faster times are higher. One card per event, all courses & history.