swimMacallan Koster
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.13 | AA+0.64s to AAA·+1.74s to Sectionals | 2025-04-04 | 2025 Eastern Zone SC Age Group Championshipsvenue |
| 100 Backstroke | SCY | 55.92 | AAA+2.43s to AAAA·+1.43s to Sectionals | 2025-04-04 | 2025 Eastern Zone SC Age Group Championshipsvenue |
| 200 Backstroke | SCY | 2:03.20 | AA+1.21s to AAA·+4.61s to Sectionals | 2025-04-05 | 2025 Eastern Zone SC Age Group Championshipsvenue |
| 100 Butterfly | SCY | 57.09 | AA+1.70s to AAA·+3.90s to Sectionals | 2025-04-03 | 2025 Eastern Zone SC Age Group Championshipsvenue |
| 100 Backstroke | LCM | 1:09.09 | A+0.40s to AA·+7.10s to Sectionals | 2024-08-09 | 2024 EZ LC Age Group Championshipvenue |
| 200 Backstroke | LCM | 2:26.42 | AA+3.43s to AAA·+11.63s to Sectionals | 2024-08-08 | 2024 EZ LC Age Group Championshipvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Backstroke | SCY | 28.35 | flat | 200 Medley Relay | 2024-03-30 | 2024 Eastern Zone SC Age Group Championships |
| 100 Backstroke | SCY | 59.22 | flat | 400 Medley Relay | 2024-03-28 | 2024 Eastern Zone SC Age Group Championships |
| 100 Backstroke | LCM | 1:07.10 | flat | 400 Medley Relay | 2024-08-08 | 2024 EZ LC Age Group Championship |
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
834 points (1/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK SCY | 2:03.20 | 834 |
| 500 FR SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
| 400 IM SCY | — | 0 |
IMR 13-14 · SCY
1670 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 55.92 | 875 |
| 100 FL SCY | 57.09 | 795 |
| 200 FR SCY | — | 0 |
| 100 BR 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 Backstroke SCY 55.92
Front half 26.94s · back half 28.98s
200 Backstroke SCY 2:03.20
Front half 58.90s · back half 64.30s
100 Butterfly SCY 57.09
Front half 26.54s · back half 30.55s
100 Backstroke LCM 1:09.09
Front half 32.22s · back half 36.87s
200 Backstroke LCM 2:26.42
Front half 70.46s · back half 75.96s
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.