Kenshin Yokoyama
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 29.78 | A+0.99s to AA·+6.59s to Sectionals | 2025-12-12 | 2025 PN 14&Under Short Course Champs-Approvedvenue |
| 100 Freestyle | SCY | 1:05.45 | BB+0.26s to A·+14.46s to Sectionals | 2026-10-04 | 2026 PN Wave Rocktober Invitational- Approvedvenue |
| 200 Freestyle | SCY | 2:26.79 | BB+4.00s to A·+35.00s to Sectionals | 2026-06-21 | 2026 PN SRST Summer Invitational - Approvedvenue |
| 500 Freestyle | SCY | 6:21.29 | A+14.70s to AA·+78.60s to Sectionals | 2026-10-16 | 2026 PN VAST Fall Classic Invite -Approvedfast pool |
| 50 Backstroke | SCY | 33.64 | A+0.25s to AA·+9.95s to Futures | 2026-10-04 | 2026 PN Wave Rocktober Invitational- Approvedvenue |
| 100 Backstroke | SCY | 1:16.19 | BB+0.60s to A·+20.70s to Sectionals | 2026-10-17 | 2026 PN VAST Fall Classic Invite -Approvedfast pool |
| 200 Backstroke | SCY | 2:39.68 | A+5.59s to AA·+38.39s to Sectionals | 2026-10-18 | 2026 PN VAST Fall Classic Invite -Approvedfast pool |
| 50 Breaststroke | SCY | 37.97 | A+0.28s to AA·+11.68s to Futures | 2026-10-03 | 2026 PN Wave Rocktober Invitational- Approvedvenue |
| 100 Breaststroke | SCY | 1:23.50 | A+2.31s to AA·+20.31s to Sectionals | 2026-10-17 | 2026 PN VAST Fall Classic Invite -Approvedfast pool |
| 200 Breaststroke | SCY | 2:58.67 | A+2.68s to AA·+41.38s to Sectionals | 2026-10-18 | 2026 PN VAST Fall Classic Invite -Approvedfast pool |
| 50 Butterfly | SCY | 31.81 | AA+1.32s to AAA·+8.92s to Futures | 2025-12-13 | 2025 PN 14&Under Short Course Champs-Approvedvenue |
| 100 Butterfly | SCY | 1:15.25 | A+3.36s to AA·+20.06s to Sectionals | 2025-12-14 | 2025 PN 14&Under Short Course Champs-Approvedvenue |
| 200 Butterfly | SCY | 2:47.22 | BB+2.83s to A·+43.83s to Sectionals | 2026-06-20 | 2026 PN SRST Summer Invitational - Approvedvenue |
| 100 Individual Medley | SCY | 1:14.62 | A+2.53s to AA | 2026-10-03 | 2026 PN Wave Rocktober Invitational- Approvedvenue |
| 200 Individual Medley | SCY | 2:41.38 | A+4.89s to AA·+37.39s to Sectionals | 2026-03-21 | 2026 NW Region Age Group Champs- Approvedvenue |
| 400 Individual Medley | SCY | 5:38.52 | A+8.73s to AA·+73.83s to Sectionals | 2026-01-25 | 2026 PN WAVE Winter Invitational- Approvedvenue |
| 50 Freestyle | LCM | 34.29 | BB+0.10s to A·+7.30s to Sectionals | 2026-07-10 | 2026 PN Chinook Seattle Age Group Open- Approvenue |
| 100 Freestyle | LCM | 1:16.03 | BB+0.74s to A·+17.04s to Sectionals | 2026-07-11 | 2026 PN Chinook Seattle Age Group Open- Approvenue |
| 200 Freestyle | LCM | 2:42.57 | A+6.68s to AA·+33.88s to Sectionals | 2026-06-07 | 2026 PN VAST Summer Sprint & Dist. - Approvedfast pool |
| 400 Freestyle | LCM | 5:48.85 | BB+4.46s to A·+74.46s to Sectionals | 2026-07-24 | 2026 PN LC 12&U Championships-Approvedvenue |
| 50 Backstroke | LCM | 39.23 | A+0.74s to AA·+11.34s to Futures | 2026-07-09 | 2026 PN Chinook Seattle Age Group Open- Approvenue |
| 100 Backstroke | LCM | 1:27.08 | A+2.99s to AA·+21.89s to Sectionals | 2026-07-10 | 2026 PN Chinook Seattle Age Group Open- Approvenue |
| 200 Backstroke | LCM | 3:08.46 | BB+2.47s to A·+46.97s to Sectionals | 2026-07-11 | 2026 PN Chinook Seattle Age Group Open- Approvenue |
| 50 Breaststroke | LCM | 45.17 | BB+0.18s to A·+14.28s to Futures | 2026-07-25 | 2026 PN LC 12&U Championships-Approvedvenue |
| 100 Breaststroke | LCM | 1:35.13 | A+0.34s to AA·+21.43s to Sectionals | 2026-07-11 | 2026 PN Chinook Seattle Age Group Open- Approvenue |
| 200 Breaststroke | LCM | 3:24.06 | A+0.67s to AA·+43.18s to Sectionals | 2026-06-07 | 2026 PN VAST Summer Sprint & Dist. - Approvedfast pool |
| 50 Butterfly | LCM | 36.22 | A+0.03s to AA·+9.93s to Futures | 2026-06-06 | 2026 PN VAST Summer Sprint & Dist. - Approvedfast pool |
| 100 Butterfly | LCM | 1:23.27 | A+1.08s to AA·+20.18s to Sectionals | 2025-07-26 | 2025 PN LC 12&U Championshipsvenue |
| 200 Butterfly | LCM | 3:14.88 | BB+5.19s to A·+53.79s to Sectionals | 2026-07-23 | 2026 PN LC 12&U Championships-Approvedvenue |
| 200 Individual Medley | LCM | 3:05.07 | A+5.88s to AA·+40.38s to Sectionals | 2026-06-06 | 2026 PN VAST Summer Sprint & Dist. - Approvedfast pool |
| 400 Individual Medley | LCM | 6:21.10 | AA+14.51s to AAA·+73.31s to Sectionals | 2026-07-25 | 2026 PN LC 12&U Championships-Approvedvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 32.43 | flying | 200 Free Relay (leg 2) | 2024-11-16 | 2024 PN MMSC November Invitational |
| 50 Freestyle | SCY | 29.50 | flying | 200 Medley Relay (leg 4) | 2024-11-17 | 2024 PN MMSC November Invitational |
| 50 Butterfly | SCY | 34.16 | flying | 200 Medley Relay (leg 3) | 2024-12-14 | 2024 PN 14 & Under SC Champs |
| 50 Freestyle | LCM | 35.53 | flat | 200 Free Relay | 2025-07-26 | 2025 PN LC 12&U Championships |
| 50 Freestyle | LCM | 39.91 | flying | 200 Free Relay (leg 2) | 2024-07-27 | 2024 PN LC 14&U Champs |
| 50 Breaststroke | LCM | 47.15 | flying | 200 Medley Relay (leg 2) | 2025-08-07 | 2025 Western Zone Age Group Championships |
| 50 Butterfly | LCM | 37.16 | flying | 200 Medley Relay (leg 3) | 2025-07-26 | 2025 PN LC 12&U Championships |
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 11-12 · LCM
2727 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:48.85 | 550 |
| 100 BK LCM | 1:27.08 | 528 |
| 100 BR LCM | 1:35.13 | 572 |
| 100 FL LCM | 1:23.27 | 539 |
| 200 IM LCM | 3:05.07 | 538 |
IMR 11-12 · SCY
2802 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:26.79 | 506 |
| 50 BK SCY | 33.64 | 588 |
| 50 BR SCY | 37.97 | 570 |
| 50 FL SCY | 31.81 | 590 |
| 100 IM SCY | 1:14.62 | 548 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:05.45
Front half 31.05s · back half 34.40s
200 Freestyle SCY 2:26.79
Front half 71.84s · back half 74.95s
500 Freestyle SCY 6:21.29
Front half 188.61s · back half 192.68s
100 Backstroke SCY 1:16.19 RT 0.80s· 29.0 min after 200 Freestyle
Front half 36.54s · back half 39.65s
200 Backstroke SCY 2:39.68 RT 0.85s· 14.0 min after 200 Individual Medley
Front half 79.03s · back half 80.65s
100 Breaststroke SCY 1:23.50 RT 0.59s· 165.5 min after 500 Freestyle
Front half 38.65s · back half 44.85s
200 Breaststroke SCY 2:58.67 RT 0.53s
Front half 86.93s · back half 91.74s
100 Butterfly SCY 1:15.25 RT 0.55s
Front half 34.75s · back half 40.50s
100 Individual Medley SCY 1:14.62 · 10.0 min after 50 Freestyle
Front half 33.83s · back half 40.79s
200 Individual Medley SCY 2:41.38 RT 0.54s
Front half 75.74s · back half 85.64s
400 Individual Medley SCY 5:38.52
Front half 166.54s · back half 171.98s
200 Freestyle LCM 2:42.57
Front half 77.02s · back half 85.55s
400 Freestyle LCM 5:48.85 RT 0.56s
Front half 173.24s · back half 175.61s
200 Backstroke LCM 3:08.46
Front half 92.90s · back half 95.56s
200 Breaststroke LCM 3:24.06 RT 0.53s· 12.5 min after 200 Freestyle
Front half 101.81s · back half 102.25s
200 Butterfly LCM 3:14.88 RT 0.55s
Front half 91.06s · back half 103.82s
200 Individual Medley LCM 3:05.07 · 11.7 min after 50 Butterfly
Front half 86.17s · back half 98.90s
400 Individual Medley LCM 6:21.10 RT 0.59s
Front half 188.01s · back half 193.09s
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.