Jacob Yamamoto
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.12 | A+0.73s to AA·+0.93s to Sectionals | 2026-02-20 | 2026 CSC Final Countdownvenue |
| 100 Freestyle | SCY | 52.18 | A+0.89s to AA·+1.19s to Sectionals | 2026-02-21 | 2026 CSC Final Countdownvenue |
| 200 Freestyle | SCY | 1:54.95 | A+2.96s to AA·+3.16s to Sectionals | 2026-02-20 | 2026 CSC Final Countdownvenue |
| 500 Freestyle | SCY | 5:23.79 | BB+6.30s to A·+21.10s to Sectionals | 2025-12-12 | Wasatch Winter Invite OBSvenue |
| 1000 Freestyle | SCY | 12:04.54 | B+7.85s to BB·+90.55s to Sectionals | 2025-02-20 | 2025 CSC Final Countdownvenue |
| 1650 Freestyle | SCY | 20:22.93 | B+28.24s to BB·+166.04s to Sectionals | 2025-01-18 | Stingrays Snowmelt Classic - Jan 2025venue |
| 50 Backstroke | SCY | 28.90 | BB+1.61s to A·+5.21s to Futures | Wasatch Winter Invite 24venue | |
| 100 Backstroke | SCY | 1:00.60 | BB+2.51s to A·+5.11s to Sectionals | 2026-02-20 | 2026 CSC Final Countdownvenue |
| 200 Backstroke | SCY | 2:16.16 | BB+8.87s to A·+14.87s to Sectionals | 2025-01-31 | 2025 UVRays Heart Attack Openvenue |
| 50 Breaststroke | SCY | 43.26 | +6.57s to B·+16.97s to Futures | 2022-12-21 | 2022 CSC December Developmentalslow pool |
| 100 Breaststroke | SCY | 1:07.39 | BB+1.40s to A·+4.20s to Sectionals | 2026-01-31 | 2026 UT Region 9 OBSfast pool |
| 200 Breaststroke | SCY | 2:29.32 | BB+6.13s to A·+12.03s to Sectionals | 2025-12-04 | 2025 UT SC Senior Championshipsfast pool |
| 50 Butterfly | SCY | 28.90 | BB+1.71s to A·+6.01s to Futures | 2025-09-10 | 2025 CSC September Intrasquadvenue |
| 100 Butterfly | SCY | 1:01.28 | BB+3.59s to A·+6.09s to Sectionals | 2026-02-21 | 2026 CSC Final Countdownvenue |
| 100 Individual Medley | SCY | 1:15.95 | 2022-12-21 | 2022 CSC December Developmentalslow pool | |
| 200 Individual Medley | SCY | 2:10.43 | BB+0.74s to A·+6.44s to Sectionals | 2026-01-31 | 2026 UT Region 9 OBSfast pool |
| 400 Individual Medley | SCY | 5:05.40 | B+4.61s to BB·+40.71s to Sectionals | 2025-10-25 | Stingrays Spooktacular - Oct 2025venue |
| 50 Freestyle | LCM | 26.90 | AA+1.01s to AAA·Sectionals ✓+2.31s to Futures | 2026-07-20 | 2026 Utah Swimming LC Senior Championships |
| 100 Freestyle | LCM | 59.36 | A+0.37s to AA·+0.37s to Sectionals | 2026-07-20 | 2026 Utah Swimming LC Senior Championships |
| 200 Freestyle | LCM | 2:16.85 | BB+2.06s to A·+8.16s to Sectionals | 2026-01-01 | Apr |
| 400 Freestyle | LCM | 4:59.93 | BB+12.34s to A·+25.54s to Sectionals | 2026-05-08 | 2026 CSC May Intrasquadvenue |
| 50 Backstroke | LCM | 33.29 | BB+0.80s to A·+5.40s to Futures | 2026-06-05 | 2026 Utah Summer Games LCM - copiedvenue |
| 100 Backstroke | LCM | 1:12.13 | BB+4.04s to A·+6.94s to Sectionals | 2026-01-01 | Apr |
| 200 Backstroke | LCM | 2:41.54 | B+1.55s to BB·+20.05s to Sectionals | 2026-01-01 | Apr |
| 50 Breaststroke | LCM | 37.92 | BB+2.03s to A·+7.03s to Futures | 2026-05-09 | 2026 CSC May Intrasquadvenue |
| 100 Breaststroke | LCM | 1:23.15 | BB+6.16s to A·+9.45s to Sectionals | 2026-07-20 | 2026 Utah Swimming LC Senior Championships |
| 200 Breaststroke | LCM | 2:59.95 | BB+12.46s to A·+19.07s to Sectionals | 2026-07-20 | 2026 Utah Swimming LC Senior Championships |
| 50 Butterfly | LCM | 29.73 | A+0.24s to AA·+3.44s to Futures | 2026-07-20 | 2026 Utah Swimming LC Senior Championships |
| 100 Butterfly | LCM | 1:12.90 | B+1.41s to BB·+9.81s to Sectionals | 2026-06-06 | 2026 Utah Summer Games LCM - copiedvenue |
| 200 Butterfly | LCM | 3:03.40 | +11.11s to B·+42.31s to Sectionals | 2026-05-22 | Stingrays Swimvitationalvenue |
| 200 Individual Medley | LCM | 2:35.28 | BB+3.99s to A·+10.59s to Sectionals | 2026-07-20 | 2026 Utah Swimming LC Senior Championships |
| 400 Individual Medley | LCM | 5:55.42 | B+6.13s to BB·+47.63s to Sectionals | 2026-05-09 | 2026 CSC May Intrasquadvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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 | 27.77 | flat | 200 Free Relay | 2024-01-19 | Stingrays Snowmelt Classic - Jan 2024 |
| 50 Freestyle | SCY | 23.08 | flying | 200 Free Relay (leg 4) | 2025-12-05 | 2025 UT SC Senior Championships |
| 50 Freestyle | SCY | 23.72 | flying | 200 Medley Relay (leg 4) | 2025-12-06 | 2025 UT SC Senior Championships |
| 100 Freestyle | SCY | 56.30 | flat | 400 Free Relay | 2024-12-07 | 2024 Utah Swimming SC Senior Championship |
| 100 Freestyle | SCY | 51.15 | flying | 400 Free Relay (leg 3) | 2025-10-24 | Stingrays Spooktacular - Oct 2025 |
| 50 Backstroke | SCY | 29.02 | flat | 200 Medley Relay | 2024-12-06 | 2024 Utah Swimming SC Senior Championship |
| 100 Backstroke | SCY | 1:11.32 | flat | 400 Medley Relay | 2022-12-03 | 2022 Winter Stampede Championship |
| 50 Breaststroke | SCY | 41.47 | flying | 200 Medley Relay (leg 2) | 2022-09-16 | 2022 CSC Blue vs Gold Scrimmage |
| 100 Breaststroke | SCY | 1:13.03 | flying | 400 Medley Relay (leg 2) | 2024-12-05 | 2024 Utah Swimming SC Senior Championship |
| 50 Butterfly | SCY | 32.72 | flying | 200 Medley Relay (leg 3) | 2022-11-18 | 2022 MAC Thanksgiving Invitational |
| 50 Freestyle | LCM | 34.78 | flat | 200 Free Relay | 2024-04-26 | 2024 Stingrays LC Kickoff |
| 50 Freestyle | LCM | 27.71 | flying | 200 Medley Relay (leg 4) | 2026-04-25 | Apr 2026 Stingrays LC Kickoff |
| 50 Freestyle | LCM | 28.03 | flying | 200 Free Relay (leg 4) | 2026-04-24 | Apr 2026 Stingrays LC Kickoff |
| 100 Freestyle | LCM | 1:22.53 | flying | 400 Free Relay (leg 2) | 2022-08-06 | 2022 Utah Beehive LC Finale |
| 50 Backstroke | LCM | 38.18 | flat | 200 Medley Relay | 2024-04-27 | 2024 Stingrays LC Kickoff |
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 15-16 · LCM
3081 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:59.93 | 583 |
| 200 BK LCM | 2:41.54 | 511 |
| 200 BR LCM | 2:59.95 | 532 |
| 200 FL LCM | 3:03.40 | 346 |
| 200 IM LCM | 2:35.28 | 615 |
| 400 IM LCM | 5:55.42 | 494 |
IMR 15-16 · SCY
3119 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:54.95 | 698 |
| 100 BK SCY | 1:00.60 | 585 |
| 100 BR SCY | 1:07.39 | 627 |
| 100 FL SCY | 1:01.28 | 556 |
| 200 IM SCY | 2:10.43 | 653 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 52.18
Front half 24.78s · back half 27.40s
200 Freestyle SCY 1:54.95
Front half 54.72s · back half 60.23s
500 Freestyle SCY 5:23.79
Front half 152.80s · back half 170.99s
1000 Freestyle SCY 12:04.54
Front half 353.81s · back half 370.73s
1650 Freestyle SCY 20:22.93
100 Backstroke SCY 1:00.60
Front half 28.77s · back half 31.83s
200 Backstroke SCY 2:16.16
Front half 64.40s · back half 71.76s
100 Breaststroke SCY 1:07.39
Front half 31.64s · back half 35.75s
200 Breaststroke SCY 2:29.32
Front half 71.84s · back half 77.48s
100 Butterfly SCY 1:01.28
Front half 28.73s · back half 32.55s
100 Individual Medley SCY 1:15.95
Front half 33.07s · back half 42.88s
200 Individual Medley SCY 2:10.43
Front half 60.68s · back half 69.75s
400 Individual Medley SCY 5:05.40
Front half 148.79s · back half 156.61s
200 Freestyle LCM 2:16.85 split/total mismatch
Front half 33.84s · back half 103.01s
100 Backstroke LCM 1:12.13 split/total mismatch
Front half 33.78s · back half 38.35s
200 Backstroke LCM 2:41.54 split/total mismatch
Front half 40.42s · back half 121.12s
100 Butterfly LCM 1:12.90
Front half 33.76s · back half 39.14s
200 Butterfly LCM 3:03.40
Front half 85.28s · back half 98.12s
400 Individual Medley LCM 5:55.42
Front half 174.82s · back half 180.60s
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.