Kai Yamamoto
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.18 | AA+0.69s to AAA | 2026-01-16 | 2026 PN VAST 49th Annual Washington Open- APP venue |
| 100 Freestyle | SCY | 52.44 | AA+1.25s to AAA | 2026-03-21 | 2026 NW Region Age Group Champs- Approved venue |
| 200 Freestyle | SCY | 1:59.80 | A+2.71s to AA | 2026-01-25 | 2026 PN Pro January Intrasquad- Approved venue |
| 500 Freestyle | SCY | 5:26.12 | A+9.03s to AA | 2026-02-27 | 2026 PN February AGI, Division 2- Approved venue |
| 1000 Freestyle | SCY | 11:38.65 | BB+11.66s to A | 2026-03-06 | 2026 PN PRO March Last Chance Intra- Apprived venue |
| 1650 Freestyle | SCY | 19:20.69 | BB+9.30s to A | 2026-03-06 | 2026 PN PRO March Last Chance Intra- Apprived venue |
| 50 Backstroke | SCY | 26.02 | AAA+0.73s to AAAA | 2025-12-13 | 2025 PN 14&Under Short Course Champs-Approved venue |
| 100 Backstroke | SCY | 54.98 | AAA+1.49s to AAAA | 2026-03-20 | 2026 NW Region Age Group Champs- Approved venue |
| 200 Backstroke | SCY | 2:01.67 | AAA+5.28s to AAAA | 2026-03-22 | 2026 NW Region Age Group Champs- Approved venue |
| 50 Breaststroke | SCY | 35.33 | BB+2.24s to A | 2025-09-26 | 2025 Pro Season Kick-off Intrasquad slow pool |
| 100 Breaststroke | SCY | 1:23.32 | +2.73s to B | 2025-02-01 | 2025 PN EAST February Invitational venue |
| 200 Breaststroke | SCY | 2:43.35 | B+0.56s to BB | 2026-01-25 | 2026 PN Pro January Intrasquad- Approved venue |
| 50 Butterfly | SCY | 26.90 | AA+0.81s to AAA | 2026-03-07 | 2026 PN PRO March Last Chance Intra- Apprived venue |
| 100 Butterfly | SCY | 58.03 | A+0.14s to AA | 2026-03-22 | 2026 NW Region Age Group Champs- Approved venue |
| 200 Butterfly | SCY | 2:22.16 | BB+7.67s to A | 2025-10-05 | 2025 PN SMAC Fall Kick-Off Invitational venue |
| 100 Individual Medley | SCY | 1:03.95 | 2026-01-25 | 2026 PN Pro January Intrasquad- Approved venue | |
| 200 Individual Medley | SCY | 2:12.71 | A+2.92s to AA | 2025-11-23 | 2025 PN Nov. AGI, Division 2 (SMAC) venue |
| 400 Individual Medley | SCY | 4:59.34 | BB+9.85s to A | 2025-10-04 | 2025 PN SMAC Fall Kick-Off Invitational venue |
| 50 Freestyle | LCM | 27.38 | AA+0.49s to AAA | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 100 Freestyle | LCM | 1:00.81 | AA+1.82s to AAA | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 200 Freestyle | LCM | 2:16.50 | A+1.81s to AA | 2026-06-07 | 2026 PN VAST Summer Sprint & Dist. - Approved venue |
| 50 Backstroke | LCM | 29.92 | AAA+0.23s to AAAA | 2026-05-17 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 100 Backstroke | LCM | 1:05.03 | AAA+2.24s to AAAA | 2026-05-16 | 2026 PN IST Sockeye Springtime Madness App. venue |
| 200 Backstroke | LCM | 2:24.37 | AA+1.38s to AAA | 2026-06-30 | 2026 PN SMAC Summer Classic Invite- Approved venue |
| 50 Breaststroke | LCM | 41.87 | B+0.88s to BB | 2025-06-22 | 2025 SWAT Summer Solstice venue |
| 50 Butterfly | LCM | 29.11 | AAA+1.12s to AAAA | 2026-06-06 | 2026 PN VAST Summer Sprint & Dist. - Approved venue |
| 100 Butterfly | LCM | 1:03.58 | AA+0.49s to AAA | 2026-06-30 | 2026 PN SMAC Summer Classic Invite- Approved venue |
| 200 Individual Medley | LCM | 2:29.61 | AA+5.82s to AAA | 2026-06-06 | 2026 PN VAST Summer Sprint & Dist. - Approved venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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 | 24.00 | flat | 200 Free Relay | 2026-03-21 | 2026 NW Region Age Group Champs- Approved |
| 50 Freestyle | SCY | 25.40 | flying | 200 Free Relay (leg 4) | 2025-02-01 | 2025 PN EAST February Invitational |
| 100 Freestyle | SCY | 51.48 | flying | 400 Medley Relay (leg 4) | 2026-03-21 | 2026 NW Region Age Group Champs- Approved |
| 100 Freestyle | SCY | 51.46 | flying | 400 Free Relay (leg 4) | 2026-03-19 | 2026 NW Region Age Group Champs- Approved |
| 50 Backstroke | SCY | 26.12 | flat | 200 Medley Relay | 2026-03-20 | 2026 NW Region Age Group Champs- Approved |
| 100 Freestyle | LCM | 1:04.17 | flying | 400 Free Relay (leg 4) | 2025-06-22 | 2025 SWAT Summer Solstice |
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
3963 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:26.12 | 698 |
| 200 BK SCY | 2:01.67 | 866 |
| 200 BR SCY | 2:43.35 | 518 |
| 200 FL SCY | 2:22.16 | 565 |
| 200 IM SCY | 2:12.71 | 711 |
| 400 IM SCY | 4:59.34 | 605 |
IMR 13-14 · SCY
3478 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:59.80 | 710 |
| 100 BK SCY | 54.98 | 920 |
| 100 BR SCY | 1:23.32 | 380 |
| 100 FL SCY | 58.03 | 757 |
| 200 IM SCY | 2:12.71 | 711 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 52.44 RT 0.76s
Front half 25.19s · back half 27.25s
200 Freestyle SCY 1:59.80
Front half 57.13s · back half 62.67s
500 Freestyle SCY 5:26.12
Front half 160.15s · back half 165.97s
1650 Freestyle SCY 19:20.69
100 Backstroke SCY 54.98 RT 0.76s
Front half 26.72s · back half 28.26s
200 Backstroke SCY 2:01.67 RT 1.04s
Front half 59.10s · back half 62.57s
100 Breaststroke SCY 1:23.32
Front half 38.56s · back half 44.76s
200 Breaststroke SCY 2:43.35
Front half 76.88s · back half 86.47s
100 Butterfly SCY 58.03 RT 0.69s
Front half 26.97s · back half 31.06s
200 Butterfly SCY 2:22.16
Front half 65.04s · back half 77.12s
100 Individual Medley SCY 1:03.95
Front half 28.44s · back half 35.51s
200 Individual Medley SCY 2:12.71
Front half 59.77s · back half 72.94s
400 Individual Medley SCY 4:59.34
Front half 138.00s · back half 161.34s
200 Freestyle LCM 2:16.50
Front half 65.58s · back half 70.92s
200 Backstroke LCM 2:24.37
Front half 71.42s · back half 72.95s
100 Butterfly LCM 1:03.58 RT 0.71s
Front half 29.78s · back half 33.80s
200 Individual Medley LCM 2:29.61 RT 0.69s· 22.5 min after 50 Butterfly
Front half 69.48s · back half 80.13s
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.
Progression
Faster times are higher. One card per event, all courses & history.