Tsubasa Ishibashi
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.96 | BB+0.27s to A | 2025-03-01 | 2025 MCSA Senior Cup Championships venue |
| 50 Backstroke | SCY | 34.42 | B+1.03s to BB | 2025-02-01 | Polar Plunge venue |
| 100 Backstroke | SCY | 1:11.93 | B+1.44s to BB | 2025-03-02 | 2025 MCSA Senior Cup Championships venue |
| 200 Backstroke | SCY | 2:27.97 | BB+6.68s to A | 2025-12-14 | OLY Swimming Holiday Bowl venue |
| 50 Butterfly | SCY | 30.77 | BB+0.48s to A | 2025-02-02 | Polar Plunge venue |
| 100 Butterfly | SCY | 1:04.87 | A+2.58s to AA | 2025-08-04 | 2025 MCSA Summer Senior Cup Championships venue |
| 100 Individual Medley | SCY | 1:12.23 | 2025-02-02 | Polar Plunge venue | |
| 200 Individual Medley | SCY | 2:27.91 | BB+3.12s to A | 2025-03-02 | 2025 MCSA Senior Cup Championships venue |
| 400 Individual Medley | SCY | 5:20.05 | BB+9.06s to A | 2025-12-12 | OLY Swimming Holiday Bowl venue |
| 50 Freestyle | LCM | 34.01 | BB+2.42s to A | 2024-07-14 | 2024 Grizzly Summer Sizzler venue |
| 100 Freestyle | LCM | 1:14.06 | B+0.27s to BB | 2024-07-14 | 2024 Grizzly Summer Sizzler venue |
| 100 Backstroke | LCM | 1:22.16 | B+0.17s to BB | 2025-06-28 | 2025 OLY Summer Classic venue |
| 100 Butterfly | LCM | 1:26.79 | +1.00s to B | 2024-07-14 | 2024 Grizzly Summer Sizzler venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 100 Butterfly | SCY | 1:07.75 | flying | 400 Medley Relay (leg 3) | 2025-03-08 | 2025 SCY MAGS Championship Meet |
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 · SCY
1728 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK SCY | 2:27.97 | 556 |
| 200 IM SCY | 2:27.91 | 597 |
| 400 IM SCY | 5:20.05 | 575 |
| 500 FR SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
1707 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:11.93 | 474 |
| 100 FL SCY | 1:04.87 | 636 |
| 200 IM SCY | 2:27.91 | 597 |
| 200 FR SCY | — | 0 |
| 100 BR SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Backstroke SCY 1:11.93
Front half 34.43s · back half 37.50s
200 Backstroke SCY 2:27.97
Front half 70.83s · back half 77.14s
100 Butterfly SCY 1:04.87
Front half 30.71s · back half 34.16s
100 Individual Medley SCY 1:12.23
Front half 32.58s · back half 39.65s
200 Individual Medley SCY 2:27.91
Front half 67.87s · back half 80.04s
400 Individual Medley SCY 5:20.05
Front half 149.24s · back half 170.81s
100 Freestyle LCM 1:14.06
Front half 35.17s · back half 38.89s
100 Backstroke LCM 1:22.16
Front half 39.50s · back half 42.66s
100 Butterfly LCM 1:26.79
Front half 38.23s · back half 48.56s
Progression
Faster times are higher. One card per event, all courses & history.