Sonja ten Grotenhuis
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.73 | A+0.24s to AA | 2021-12-04 | 2021 Dixie Stampede Winter Champs venue |
| 100 Freestyle | SCY | 58.20 | A+0.61s to AA | 2021-12-05 | 2021 Dixie Stampede Winter Champs venue |
| 200 Freestyle | SCY | 2:09.62 | A+5.33s to AA | 2021-12-03 | 2021 Dixie Stampede Winter Champs venue |
| 500 Freestyle | SCY | 5:57.40 | BB+7.51s to A | 2021-12-04 | 2021 Dixie Stampede Winter Champs venue |
| 100 Backstroke | SCY | 1:07.13 | BB+2.04s to A | 2021-12-03 | 2021 Dixie Stampede Winter Champs venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.19 | flying | 200 Free Relay (leg 2) | 2021-12-03 | 2021 Dixie Stampede Winter Champs |
| 100 Freestyle | SCY | 57.68 | flying | 400 Free Relay (leg 4) | 2021-12-05 | 2021 Dixie Stampede Winter Champs |
| 100 Backstroke | SCY | 1:07.58 | flat | 400 Medley Relay | 2021-12-04 | 2021 Dixie Stampede Winter Champs |
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
596 points (1/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:57.40 | 596 |
| 200 BK SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 15-16 · SCY
1224 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:09.62 | 641 |
| 100 BK SCY | 1:07.13 | 583 |
| 100 BR SCY | — | 0 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 58.20
Front half 27.61s · back half 30.59s
200 Freestyle SCY 2:09.62
Front half 62.00s · back half 67.62s
500 Freestyle SCY 5:57.40
Front half 178.86s · back half 178.54s
100 Backstroke SCY 1:07.13
Front half 32.49s · back half 34.64s
Progression
Faster times are higher. One card per event, all courses & history.