Joanna Rosser
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 30.44 | 2022-12-10 | HI 2022 Oahu BC Meet venue | |
| 50 Freestyle | SCY | 43.84 | +3.95s to B | 2025-07-01 | 1638832 |
| 25 Backstroke | SCY | 34.80 | 2022-12-10 | HI 2022 Oahu BC Meet venue | |
| 50 Backstroke | SCY | 50.79 | +2.20s to B | 2025-07-01 | 1638832 |
| 100 Backstroke | SCY | 2:05.81 | +20.02s to B | 2025-10-19 | Aulea Fall Frenzy Meet venue |
| 25 Breaststroke | SCY | 42.05 | 2022-12-10 | HI 2022 Oahu BC Meet venue | |
| 50 Breaststroke | SCY | 53.50 | B+4.81s to BB | 2026-03-08 | 2026 HI Junior Age Group SCY Championship fast pool |
| 100 Breaststroke | SCY | 1:56.42 | B+9.53s to BB | 2026-03-07 | 2026 HI Junior Age Group SCY Championship fast pool |
| 50 Backstroke | LCM | 1:22.61 | +26.82s to B | 2024-05-02 | 1496332 |
| 50 Breaststroke | LCM | 1:17.43 | +15.24s to B | 2024-05-02 | 1496332 |
| 50 Butterfly | LCM | 40.78 | A+1.29s to AA | 2024-06-30 | 1530185 |
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 · SCY
502 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 2:05.81 | 176 |
| 100 BR SCY | 1:56.42 | 326 |
| 200 FR SCY | — | 0 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 10 & under · LCM
895 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 50 BK LCM | 1:22.61 | 93 |
| 50 BR LCM | 1:17.43 | 160 |
| 50 FL LCM | 40.78 | 642 |
| 100 FR LCM | — | 0 |
| 200 IM LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Breaststroke SCY 1:56.42
Front half 54.87s · back half 61.55s
Progression
Faster times are higher. One card per event, all courses & history.