swimHazel Jefferson
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 1:04.60 | 2025-02-08 | 2025 Aquarius | |
| 50 Freestyle | SCY | 27.29 | AA+0.30s to AAA | 2026-01-17 | GSA January Jump Start 2026 venue |
| 100 Freestyle | SCY | 58.99 | AA+0.30s to AAA | 2026-01-18 | GSA January Jump Start 2026 venue |
| 200 Freestyle | SCY | 2:10.50 | AA+2.11s to AAA | 2025-10-12 | 2025 FAST Pumpkin Plunge venue |
| 50 Backstroke | SCY | 34.40 | BB+1.11s to A | 2024-10-12 | 2024 Swim Atlanta October Invite |
| 100 Backstroke | SCY | 1:11.22 | A+1.63s to AA | 2025-09-20 | 2025 Pentathlon |
| 200 Backstroke | SCY | 2:37.33 | BB+2.94s to A | 2025-02-21 | 2025 GA Age Group State Championship |
| 50 Breaststroke | SCY | 43.35 | B+2.46s to BB | 2024-10-13 | 2024 Swim Atlanta October Invite venue |
| 50 Butterfly | SCY | 29.04 | AAA+1.25s to AAAA | 2025-10-11 | 2025 FAST Pumpkin Plunge venue |
| 100 Butterfly | SCY | 1:04.46 | AAA+2.47s to AAAA | 2026-01-18 | GSA January Jump Start 2026 venue |
| 200 Butterfly | SCY | 2:21.12 | AAA+3.53s to AAAA | 2026-01-17 | GSA January Jump Start 2026 venue |
| 100 Individual Medley | SCY | 1:14.38 | BB+1.29s to A | 2025-09-20 | 2025 Pentathlon |
| 200 Individual Medley | SCY | 2:37.77 | BB+0.08s to A | 2025-09-20 | 2025 Pentathlon |
| 50 Freestyle | LCM | 31.72 | AA+1.03s to AAA | 2025-07-11 | 2025 GCAT's Last Chance Long Course Meet |
| 100 Freestyle | LCM | 1:07.51 | AA+0.22s to AAA | 2026-07-09 | 2026 FL Summer Age Group Championships |
| 200 Freestyle | LCM | 2:26.18 | AAA+6.09s to AAAA | 2026-07-09 | 2026 FL Summer Age Group Championships |
| 400 Freestyle | LCM | 5:20.70 | AA+12.01s to AAA | 2025-06-21 | 2025 Planet Swim Summer Championships venue |
| 50 Backstroke | LCM | 43.00 | B+1.31s to BB | 2024-07-21 | 2024 GA AG LC Championship July 18-21 2024 venue |
| 100 Backstroke | LCM | 1:22.29 | A+1.50s to AA | 2026-05-16 | 2026 PSA May Invite |
| 200 Backstroke | LCM | 2:54.10 | A+3.11s to AA | 2025-07-11 | 2025 GCAT's Last Chance Long Course Meet |
| 50 Butterfly | LCM | 32.64 | AAA+1.25s to AAAA | 2026-07-09 | 2026 FL Summer Age Group Championships |
| 100 Butterfly | LCM | 1:14.13 | AAA+3.24s to AAAA | 2026-05-17 | 2026 PSA May Invite fast pool |
| 200 Butterfly | LCM | 2:49.37 | AA+3.48s to AAA | 2025-06-22 | 2025 Planet Swim Summer Championships venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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 |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.03 | flying | 200 Free Relay (leg 4) | 2026-01-18 | GSA January Jump Start 2026 |
| 50 Butterfly | SCY | 29.37 | flying | 200 Medley Relay (leg 3) | 2026-01-17 | GSA January Jump Start 2026 |
| 50 Butterfly | LCM | 35.95 | flying | 200 Medley Relay (leg 3) | 2024-07-21 | 2024 GA AG LC Championship July 18-21 2024 |
| 100 Butterfly | LCM | 1:29.03 | flying | 400 Medley Relay (leg 3) | 2025-06-20 | 2025 Planet Swim Summer 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 11-12 · LCM
2339 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 5:20.70 | 775 |
| 100 BK LCM | 1:22.29 | 694 |
| 100 FL LCM | 1:14.13 | 870 |
| 100 BR LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 11-12 · SCY
3357 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:10.50 | 814 |
| 50 BK SCY | 34.40 | 604 |
| 50 BR SCY | 43.35 | 440 |
| 50 FL SCY | 29.04 | 866 |
| 100 IM SCY | 1:14.38 | 633 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 58.99
Front half 28.44s · back half 30.55s
200 Freestyle SCY 2:10.50 RT 0.72s
Front half 63.53s · back half 66.97s
100 Butterfly SCY 1:04.46
Front half 29.58s · back half 34.88s
200 Butterfly SCY 2:21.12
Front half 66.92s · back half 74.20s
400 Freestyle LCM 5:20.70
Front half 161.91s · back half 158.79s
100 Butterfly LCM 1:14.13
Front half 33.89s · back half 40.24s
200 Butterfly LCM 2:49.37
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.