Sen Oyamada
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.19 | A+0.60s to AA·+3.00s to Sectionals | 2026-03-07 | PVST March Madnessvenue |
| 100 Freestyle | SCY | 55.40 | AA+2.31s to AAA·+4.41s to Sectionals | 2026-03-08 | PVST March Madnessvenue |
| 200 Freestyle | SCY | 2:11.12 | BB+4.43s to A·+19.33s to Sectionals | 2025-02-22 | 2025 CA BUENA Coastal Championshipslow pool |
| 500 Freestyle | SCY | 5:32.26 | A+4.77s to AA·+29.57s to Sectionals | 2026-02-08 | 2026 PVST Coastal vs. Cancervenue |
| 1000 Freestyle | SCY | 11:18.55 | A+0.96s to AA·+44.56s to Sectionals | 2026-03-08 | PVST March Madnessvenue |
| 1650 Freestyle | SCY | 18:09.76 | AAA+49.17s to AAAA·+32.87s to Sectionals | 2026-03-12 | 2026 SCS Spring Age Group Champs @ RMDA - copvenue |
| 50 Backstroke | SCY | 29.63 | A+0.54s to AA·+5.94s to Futures | 2026-03-08 | PVST March Madnessvenue |
| 200 Backstroke | SCY | 2:27.95 | BB+8.96s to A·+26.66s to Sectionals | 2025-03-22 | PVST Spring Flingvenue |
| 50 Butterfly | SCY | 27.45 | AA+0.16s to AAA·+4.56s to Futures | 2026-03-14 | 2026 SCS Spring Age Group Champs @ RMDA - copvenue |
| 100 Butterfly | SCY | 1:01.76 | A+1.17s to AA·+6.57s to Sectionals | 2026-03-14 | 2026 SCS Spring Age Group Champs @ RMDA - copvenue |
| 200 Butterfly | SCY | 2:28.67 | BB+6.98s to A·+25.28s to Sectionals | 2026-02-22 | BUEN February Coastal Champsvenue |
| 200 Individual Medley | SCY | 2:21.94 | BB+0.75s to A·+17.95s to Sectionals | 2026-02-08 | 2026 PVST Coastal vs. Cancervenue |
| 50 Freestyle | LCM | 28.90 | AA+0.91s to AAA·+1.91s to Sectionals | 2026-05-24 | BUEN Memorial Day LC Meetvenue |
| 100 Freestyle | LCM | 1:01.06 | AAA+2.37s to AAAA·+2.07s to Sectionals | 2026-07-19 | 2026 SCS ELITE Age Group LCM Championshipvenue |
| 200 Freestyle | LCM | 2:14.04 | AA+0.45s to AAA·+5.35s to Sectionals | 2026-06-27 | 2026 Class-Malibu Waves Free Weekend Invitevenue |
| 400 Freestyle | LCM | 4:36.75 | AAA+6.76s to AAAA·+2.36s to Sectionals | 2026-07-25 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 800 Freestyle | LCM | 9:35.71 | AAA+12.22s to AAAA·+5.72s to Sectionals | 2026-07-26 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 50 Backstroke | LCM | 36.98 | BB+1.59s to A·+9.09s to Futures | 2025-07-19 | 2025 SCS 14-Under Elite A/G Champs at MVNvenue |
| 100 Backstroke | LCM | 1:17.84 | BB+2.95s to A·+12.65s to Sectionals | 2025-06-15 | 2025 CA SCS RAA June Age Group Championshipsvenue |
| 50 Breaststroke | LCM | 38.61 | A+0.92s to AA·+7.72s to Futures | 2026-05-23 | BUEN Memorial Day LC Meetvenue |
| 100 Breaststroke | LCM | 1:38.59 | +1.40s to B·+24.89s to Sectionals | 2025-06-29 | 2025 CA SBSC Semana Nautica LCM Meetvenue |
| 50 Butterfly | LCM | 29.81 | AAA+0.52s to AAAA·+3.52s to Futures | 2026-07-26 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 100 Butterfly | LCM | 1:07.83 | AA+1.74s to AAA·+4.74s to Sectionals | 2026-07-25 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 200 Butterfly | LCM | 2:36.52 | A+1.33s to AA·+15.43s to Sectionals | 2026-07-23 | 2026 CA SCS Summer A/G Champs @ BREAfast pool |
| 200 Individual Medley | LCM | 2:36.56 | A+0.17s to AA·+11.87s to Sectionals | 2026-05-24 | BUEN Memorial Day LC Meetvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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.
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 25.11 | flying | 200 Free Relay (leg 3) | 2026-03-15 | 2026 SCS Spring Age Group Champs @ RMDA - cop |
| 50 Freestyle | SCY | 28.16 | flying | 200 Medley Relay (leg 4) | 2024-12-14 | 2024 CA RAA/SCS WAG |
| 100 Freestyle | SCY | 1:03.28 | flying | 400 Medley Relay (leg 4) | 2024-12-15 | 2024 CA RAA/SCS WAG |
| 100 Freestyle | SCY | 1:00.51 | flying | 400 Free Relay (leg 4) | 2025-03-14 | 2025 SCS Spring Age Group Champs @ Armada |
| 50 Butterfly | SCY | 27.49 | flying | 200 Medley Relay (leg 3) | 2026-03-15 | 2026 SCS Spring Age Group Champs @ RMDA - cop |
| 50 Freestyle | LCM | 28.44 | flat | 200 Free Relay | 2026-07-18 | 2026 SCS ELITE Age Group LCM Championship |
| 50 Freestyle | LCM | 28.22 | flying | 200 Free Relay (leg 3) | 2026-06-11 | 2026 SCS June AG Invite |
| 100 Freestyle | LCM | 1:01.69 | flying | 400 Free Relay (leg 4) | 2026-07-26 | 2026 CA SCS Summer A/G Champs @ BREA |
| 100 Freestyle | LCM | 1:01.54 | flying | 400 Medley Relay (leg 4) | 2026-07-25 | 2026 CA SCS Summer A/G Champs @ BREA |
| 200 Freestyle | LCM | 2:14.32 | flying | 800 Free Relay (leg 3) | 2026-07-23 | 2026 CA SCS Summer A/G Champs @ BREA |
| 50 Butterfly | LCM | 30.06 | flying | 200 Medley Relay (leg 3) | 2026-07-18 | 2026 SCS ELITE Age Group LCM Championship |
| 100 Butterfly | LCM | 1:09.37 | flying | 400 Medley Relay (leg 3) | 2026-07-25 | 2026 CA SCS Summer A/G Champs @ BREA |
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 13-14 · SCY
2216 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:32.26 | 660 |
| 200 BK SCY | 2:27.95 | 481 |
| 200 FL SCY | 2:28.67 | 494 |
| 200 IM SCY | 2:21.94 | 581 |
| 200 BR SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 13-14 · LCM
3032 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:14.04 | 772 |
| 100 BK LCM | 1:17.84 | 524 |
| 100 BR LCM | 1:38.59 | 362 |
| 100 FL LCM | 1:07.83 | 702 |
| 200 IM LCM | 2:36.56 | 672 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 55.40
Front half 27.13s · back half 28.27s
200 Freestyle SCY 2:11.12
Front half 62.66s · back half 68.46s
500 Freestyle SCY 5:32.26
Front half 164.25s · back half 168.01s
1650 Freestyle SCY 18:09.76
200 Backstroke SCY 2:27.95
Front half 73.87s · back half 74.08s
100 Butterfly SCY 1:01.76
Front half 29.12s · back half 32.64s
200 Butterfly SCY 2:28.67
Front half 67.73s · back half 80.94s
200 Individual Medley SCY 2:21.94
Front half 65.38s · back half 76.56s
100 Freestyle LCM 1:01.06
Front half 29.13s · back half 31.93s
200 Freestyle LCM 2:14.04
Front half 65.29s · back half 68.75s
400 Freestyle LCM 4:36.75 RT 0.65s
Front half 136.54s · back half 140.21s
800 Freestyle LCM 9:35.71 RT 0.69s
Front half 287.30s · back half 288.41s
100 Backstroke LCM 1:17.84
Front half 38.48s · back half 39.36s
100 Breaststroke LCM 1:38.59
Front half 47.24s · back half 51.35s
200 Butterfly LCM 2:36.52 RT 0.64s
Front half 73.95s · back half 82.57s
200 Individual Medley LCM 2:36.56
Front half 73.42s · back half 83.14s
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.