swimMason Birch
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 24.82 | 2026-07-24 | 2026 Summer Sprintsvenue | |
| 50 Freestyle | SCY | 55.94 | +33.65s to Sectionals | 2026-07-24 | 2026 Summer Sprintsvenue |
| 100 Freestyle | SCY | 2:41.18 | +112.89s to Sectionals | 2026-01-17 | 2026 Gabrielle Rose Tiger Classicvenue |
| 25 Backstroke | SCY | 28.91 | 2026-07-24 | 2026 Summer Sprintsvenue | |
| 50 Backstroke | SCY | 1:28.30 | +62.61s to Sectionals | 2026-01-18 | 2026 Gabrielle Rose Tiger Classicvenue |
| 50 Freestyle | LCM | 1:20.39 | +54.80s to Sectionals | 2026-01-01 | 2026 dick fadgen results |
| 100 Freestyle | LCM | 2:47.26 | +111.97s to Sectionals | 2026-06-28 | 2026 Dick Fadgen Tiger Classicvenue |
National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.
IMX / IMR
IMR 10 & under · SCY
101 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 2:41.18 | 53 |
| 50 BK SCY | 1:28.30 | 48 |
| 50 BR SCY | — | 0 |
| 50 FL SCY | — | 0 |
| 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 2:41.18
Front half 72.48s · back half 88.70s
100 Freestyle LCM 2:47.26
Front half 77.25s · back half 90.01s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
Swim history
Every recorded swim, newest first
| Date | Event | Course | Time | Age | Round | Meet |
|---|
Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.
Progression
Faster times are higher. One card per event, all courses & history.