swimEllie Brereton
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.76 | BB+0.07s to A | 2026-03-01 | 2026 Winter ISI Regionals- BSC fast pool |
| 100 Freestyle | SCY | 58.83 | A+1.24s to AA | 2025-07-19 | 2025 ISI Summer HPAC Regional venue |
| 100 Backstroke | SCY | 1:06.05 | BB+0.96s to A | 2025-07-20 | 2025 ISI Summer HPAC Regional venue |
| 200 Backstroke | SCY | 2:20.89 | A+5.50s to AA | 2024-07-13 | 2024 IL BSC Summer Regional Championships slow pool |
| 50 Butterfly | SCY | 28.42 | AA+0.63s to AAA | 2025-03-15 | 2025 ISI Winter 11-14 Age Group Championships venue |
| 100 Butterfly | SCY | 1:02.56 | A+0.27s to AA | 2025-07-19 | 2025 ISI Summer HPAC Regional venue |
| 200 Butterfly | SCY | 2:17.64 | AA+5.45s to AAA | 2024-07-14 | 2024 IL BSC Summer Regional Championships slow pool |
| 200 Individual Medley | SCY | 2:24.91 | BB+0.12s to A | 2024-07-14 | 2024 IL BSC Summer Regional Championships slow pool |
| 400 Individual Medley | SCY | 5:04.46 | A+6.47s to AA | 2024-07-13 | 2024 IL BSC Summer Regional Championships slow pool |
| 100 Butterfly | LCM | 1:09.59 | AA+2.20s to AAA | 2024-07-20 | 2024 IL Swimming LC Age Group Championships venue |
| 200 Butterfly | LCM | 2:37.75 | A+0.96s to AA | 2024-07-18 | 2024 IL Swimming LC Age Group Championships venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.
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 |
|---|---|---|---|---|---|---|
| 100 Freestyle | SCY | 57.76 | flying | 400 Free Relay (leg 3) | 2025-03-16 | 2025 ISI Winter 11-14 Age Group Championships |
| 200 Freestyle | SCY | 2:07.82 | flying | 800 Free Relay (leg 4) | 2025-03-14 | 2025 ISI Winter 11-14 Age Group Championships |
| 50 Butterfly | SCY | 28.41 | flying | 200 Medley Relay (leg 3) | 2025-03-14 | 2025 ISI Winter 11-14 Age Group Championships |
| 100 Butterfly | SCY | 1:03.42 | flying | 400 Medley Relay (leg 3) | 2025-03-15 | 2025 ISI Winter 11-14 Age Group Championships |
| 100 Butterfly | LCM | 1:10.25 | flying | 400 Medley Relay (leg 3) | 2024-07-21 | 2024 IL Swimming LC Age Group Championships |
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
2686 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK SCY | 2:20.89 | 644 |
| 200 FL SCY | 2:17.64 | 738 |
| 200 IM SCY | 2:24.91 | 635 |
| 400 IM SCY | 5:04.46 | 669 |
| 500 FR SCY | — | 0 |
| 200 BR SCY | — | 0 |
IMR 15-16 · SCY
1956 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK SCY | 1:06.05 | 612 |
| 100 FL SCY | 1:02.56 | 709 |
| 200 IM SCY | 2:24.91 | 635 |
| 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 Freestyle SCY 58.83
Front half 28.10s · back half 30.73s
100 Backstroke SCY 1:06.05
Front half 31.85s · back half 34.20s
200 Backstroke SCY 2:20.89
Front half 68.79s · back half 72.10s
100 Butterfly SCY 1:02.56
Front half 29.25s · back half 33.31s
200 Butterfly SCY 2:17.64
Front half 63.24s · back half 74.40s
200 Individual Medley SCY 2:24.91
400 Individual Medley SCY 5:04.46
Front half 143.29s · back half 161.17s
100 Butterfly LCM 1:09.59
Front half 33.40s · back half 36.19s
200 Butterfly LCM 2:37.75
Front half 74.44s · back half 83.31s
Reaction time
From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.
Progression
Faster times are higher. One card per event, all courses & history.