Mason Birnie
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 23.61 | 2025-01-01 | 2025 CO Alpha Tide High Point Showdown | |
| 50 Freestyle | SCY | 47.03 | +23.84s to Sectionals | 2026-07-09 | 2026 CO NCS 10&U Summer Festivalvenue |
| 100 Freestyle | SCY | 1:44.33 | +53.34s to Sectionals | 2026-09-26 | 2026 CO CUDA Red & Black Meetvenue |
| 25 Backstroke | SCY | 29.10 | 2025-01-01 | 2025 CO Alpha Tide High Point Showdown | |
| 50 Backstroke | SCY | 51.50 | +27.81s to Futures | 2026-07-09 | 2026 CO NCS 10&U Summer Festivalvenue |
| 100 Backstroke | SCY | 2:01.31 | +65.82s to Sectionals | 2026-01-18 | 2026 CO CUDA Classicvenue |
| 50 Breaststroke | SCY | 1:14.51 | +48.22s to Futures | 2026-01-09 | 2026 CO CUDA January Pizza Meetvenue |
| 50 Butterfly | SCY | 53.39 | +30.50s to Futures | 2026-09-26 | 2026 CO CUDA Red & Black Meetvenue |
| 100 Individual Medley | SCY | 1:54.61 | 2026-09-26 | 2026 CO CUDA Red & Black Meetvenue | |
| 50 Freestyle | LCM | 50.37 | +23.38s to Sectionals | 2026-06-27 | 2026 CO CUDA Summer Kickervenue |
| 100 Freestyle | LCM | 1:58.13 | +59.14s to Sectionals | 2026-05-23 | 2026 CO CUDA vs AQUA Dualvenue |
| 50 Backstroke | LCM | 1:00.32 | +32.43s to Futures | 2026-05-23 | 2026 CO CUDA vs AQUA Dualvenue |
| 50 Breaststroke | LCM | 1:09.27 | +38.38s to Futures | 2026-05-23 | 2026 CO CUDA vs AQUA Dualvenue |
| 100 Breaststroke | LCM | 2:26.94 | +73.24s to Sectionals | 2026-06-27 | 2026 CO CUDA Summer Kickervenue |
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 49.13 | flying | 200 Medley Relay (leg 4) | 2026-07-09 | 2026 CO NCS 10&U Summer Festival |
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 10 & under · LCM
242 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BR LCM | 2:26.94 | 242 |
| 200 FR LCM | — | 0 |
| 100 BK LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 10 & under · SCY
972 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:44.33 | 196 |
| 50 BK SCY | 51.50 | 244 |
| 50 BR SCY | 1:14.51 | 116 |
| 50 FL SCY | 53.39 | 191 |
| 100 IM SCY | 1:54.61 | 225 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:44.33
Front half 48.58s · back half 55.75s
100 Backstroke SCY 2:01.31
Front half 57.89s · back half 63.42s
100 Individual Medley SCY 1:54.61
Front half 53.03s · back half 61.58s
100 Freestyle LCM 1:58.13
Front half 56.34s · back half 61.79s
100 Breaststroke LCM 2:26.94
Front half 71.16s · back half 75.78s
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.