Jack Yoshimura
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 100 Freestyle | SCY | 53.14 | AA+1.95s to AAA | 2024-01-06 | 2024 MAC Short Course Midwest Invitational venue |
| 200 Freestyle | SCY | 1:55.66 | AA+3.67s to AAA | 2024-02-04 | 2024 Schroeder YMCA A+ Presented by Speedo venue |
| 500 Freestyle | SCY | 5:17.52 | A+0.43s to AA | 2024-02-10 | 2024 PX3 Valentine Open slow pool |
| 100 Backstroke | SCY | 56.44 | AA+0.35s to AAA | 2024-01-06 | 2024 MAC Short Course Midwest Invitational venue |
| 100 Breaststroke | SCY | 1:07.08 | A+0.89s to AA | 2024-02-03 | 2024 Schroeder YMCA A+ Presented by Speedo venue |
| 100 Butterfly | SCY | 56.66 | AA+1.27s to AAA | 2024-02-03 | 2024 Schroeder YMCA A+ Presented by Speedo venue |
| 200 Butterfly | SCY | 2:04.10 | AA+0.81s to AAA | 2024-02-04 | 2024 Schroeder YMCA A+ Presented by Speedo venue |
| 200 Individual Medley | SCY | 2:06.22 | AA+2.13s to AAA | 2024-02-03 | 2024 Schroeder YMCA A+ Presented by Speedo venue |
| 400 Individual Medley | SCY | 4:30.20 | AA+4.81s to AAA | 2024-02-02 | 2024 Schroeder YMCA A+ Presented by Speedo venue |
| 400 Freestyle | LCM | 4:42.76 | AA+7.77s to AAA | 2024-04-26 | 2024 PX3 Spring IMR/IMX Challenge slow pool |
| 100 Backstroke | LCM | 1:05.95 | AA+0.16s to AAA | 2024-03-10 | 2024 USA Swimming Speedo Championship Series venue |
| 200 Backstroke | LCM | 2:22.95 | AAA+6.46s to AAAA | 2024-03-08 | 2024 USA Swimming Speedo Championship Series venue |
| 200 Breaststroke | LCM | 2:59.03 | BB+4.24s to A | 2024-04-27 | 2024 PX3 Spring IMR/IMX Challenge slow pool |
| 200 Butterfly | LCM | 2:30.14 | A+2.25s to AA | 2024-03-08 | 2024 USA Swimming Speedo Championship Series venue |
| 200 Individual Medley | LCM | 2:28.64 | AA+4.85s to AAA | 2024-04-26 | 2024 PX3 Spring IMR/IMX Challenge slow pool |
| 400 Individual Medley | LCM | 5:10.54 | AA+3.05s to AAA | 2024-03-09 | 2024 USA Swimming Speedo Championship Series 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 |
|---|---|---|---|---|---|---|
| 200 Freestyle | LCM | 2:13.23 | flying | 800 Free Relay (leg 3) | 2024-03-07 | 2024 USA Swimming Speedo Championship Series |
| 100 Breaststroke | LCM | 1:18.46 | flying | 400 Medley Relay (leg 2) | 2024-03-09 | 2024 USA Swimming Speedo Championship Series |
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 · LCM
4616 points (6/6 events)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:42.76 | 789 |
| 200 BK LCM | 2:22.95 | 866 |
| 200 BR LCM | 2:59.03 | 613 |
| 200 FL LCM | 2:30.14 | 723 |
| 200 IM LCM | 2:28.64 | 786 |
| 400 IM LCM | 5:10.54 | 839 |
IMR 13-14 · SCY
4009 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:55.66 | 789 |
| 100 BK SCY | 56.44 | 851 |
| 100 BR SCY | 1:07.08 | 729 |
| 100 FL SCY | 56.66 | 813 |
| 200 IM SCY | 2:06.22 | 827 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 53.14
Front half 25.41s · back half 27.73s
200 Freestyle SCY 1:55.66
Front half 55.23s · back half 60.43s
500 Freestyle SCY 5:17.52
Front half 156.54s · back half 160.98s
100 Backstroke SCY 56.44
Front half 27.29s · back half 29.15s
100 Breaststroke SCY 1:07.08
Front half 31.28s · back half 35.80s
100 Butterfly SCY 56.66
Front half 26.48s · back half 30.18s
200 Butterfly SCY 2:04.10
Front half 58.64s · back half 65.46s
200 Individual Medley SCY 2:06.22
Front half 59.05s · back half 67.17s
400 Individual Medley SCY 4:30.20
Front half 127.46s · back half 142.74s
400 Freestyle LCM 4:42.76
Front half 139.91s · back half 142.85s
200 Backstroke LCM 2:22.95
Front half 67.96s · back half 74.99s
200 Breaststroke LCM 2:59.03
Front half 85.92s · back half 93.11s
200 Butterfly LCM 2:30.14
Front half 69.22s · back half 80.92s
200 Individual Medley LCM 2:28.64
Front half 69.04s · back half 79.60s
400 Individual Medley LCM 5:10.54
Front half 144.17s · back half 166.37s
Progression
Faster times are higher. One card per event, all courses & history.