swimMason Ryu
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 28.83 | AA+0.04s to AAA | 2026-03-13 | 2026 SCS Spring Age Group Champs @ RMDA - cop venue |
| 100 Freestyle | SCY | 1:04.77 | AA+0.68s to AAA | 2025-11-09 | 2025 CA Downey Dolphins SC Swim Meet venue |
| 200 Freestyle | SCY | 2:24.51 | AA+5.42s to AAA | 2026-02-15 | 2026 Metro Champs @ La Mirada Armada venue |
| 50 Backstroke | SCY | 33.13 | AAA+0.74s to AAAA | 2026-03-13 | 2026 SCS Spring Age Group Champs @ RMDA - cop venue |
| 100 Backstroke | SCY | 1:12.25 | AAA+2.96s to AAAA | 2026-03-15 | 2026 SCS Spring Age Group Champs @ RMDA - cop venue |
| 50 Breaststroke | SCY | 37.83 | AAA+1.44s to AAAA | 2026-03-14 | 2026 SCS Spring Age Group Champs @ RMDA - cop venue |
| 100 Breaststroke | SCY | 1:30.73 | A+3.04s to AA | 2025-11-08 | 2025 CA Downey Dolphins SC Swim Meet venue |
| 50 Butterfly | SCY | 31.52 | AAA+0.73s to AAAA | 2026-03-15 | 2026 SCS Spring Age Group Champs @ RMDA - cop venue |
| 100 Butterfly | SCY | 1:20.00 | A+0.21s to AA | 2025-11-23 | 2025 CA Fast Before The Feast venue |
| 100 Individual Medley | SCY | 1:12.38 | AAA+2.49s to AAAA | 2026-03-14 | 2026 SCS Spring Age Group Champs @ RMDA - cop venue |
| 50 Freestyle | LCM | 31.33 | AAAA | 2026-06-14 | ARMADA-2026 SCS June AG Invite venue |
| 100 Freestyle | LCM | 1:10.03 | AAA+0.24s to AAAA | 2026-06-12 | ARMADA-2026 SCS June AG Invite venue |
| 200 Freestyle | LCM | 2:37.00 | AAA+5.01s to AAAA | 2026-05-02 | 26 ESA Dolphins Swim Team venue |
| 50 Backstroke | LCM | 36.45 | AAAA | 2026-06-13 | ARMADA-2026 SCS June AG Invite venue |
| 100 Backstroke | LCM | 1:24.90 | AA+0.81s to AAA | 2026-05-03 | 26 ESA Dolphins Swim Team venue |
| 50 Breaststroke | LCM | 40.42 | AAAA | 2026-06-14 | ARMADA-2026 SCS June AG Invite venue |
| 100 Breaststroke | LCM | 1:29.14 | AAAA | 2026-06-13 | ARMADA-2026 SCS June AG Invite venue |
| 50 Butterfly | LCM | 35.60 | AAA+0.91s to AAAA | 2026-06-12 | ARMADA-2026 SCS June AG Invite venue |
| 100 Butterfly | LCM | 1:28.12 | AA+2.93s to AAA | 2026-04-11 | Armada Lc April Meet -April 11-12-2026 venue |
| 200 Individual Medley | LCM | 3:02.90 | AA+1.81s to AAA | 2026-05-03 | 26 ESA Dolphins Swim Team venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.46 | flying | 200 Free Relay (leg 4) | 2026-02-14 | 2026 Metro Champs @ La Mirada Armada |
| 50 Butterfly | SCY | 31.46 | flying | 200 Medley Relay (leg 3) | 2026-03-08 | 2026 CA Arcadia Riptides "Last Ditch" Meet |
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
4395 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:37.00 | 901 |
| 100 BK LCM | 1:24.90 | 836 |
| 100 BR LCM | 1:29.14 | 1088 |
| 100 FL LCM | 1:28.12 | 736 |
| 200 IM LCM | 3:02.90 | 834 |
IMR 10 & under · LCM
4874 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:10.03 | 989 |
| 50 BK LCM | 36.45 | 1045 |
| 50 BR LCM | 40.42 | 1081 |
| 50 FL LCM | 35.60 | 925 |
| 200 IM LCM | 3:02.90 | 834 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:24.51
Front half 70.25s · back half 74.26s
100 Backstroke SCY 1:12.25
Front half 35.51s · back half 36.74s
100 Butterfly SCY 1:20.00
Front half 39.05s · back half 40.95s
100 Individual Medley SCY 1:12.38
Front half 32.37s · back half 40.01s
100 Freestyle LCM 1:10.03
Front half 33.33s · back half 36.70s
200 Freestyle LCM 2:37.00
Front half 76.37s · back half 80.63s
100 Butterfly LCM 1:28.12
Front half 40.20s · back half 47.92s
200 Individual Medley LCM 3:02.90
Front half 87.86s · back half 95.04s
Progression
Faster times are higher. One card per event, all courses & history.