swimIssac Jeffers
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.15 | BB+0.46s to A | 2024-02-26 | BLUE Duck Hunt'n Derby |
| 100 Freestyle | SCY | 56.66 | B+0.27s to BB | 2024-02-26 | BLUE Duck Hunt'n Derby |
| 100 Freestyle | LCM | 59.02 | A+1.33s to AA | 2024-07-01 | LAC Arena Classic |
| 400 Freestyle | LCM | 4:30.83 | A+1.84s to AA | 2024-07-01 | LAC Arena Classic |
| 800 Freestyle | LCM | 9:38.69 | A+15.40s to AA | 2024-07-01 | LAC Arena Classic |
| 1500 Freestyle | LCM | 18:13.31 | A+15.52s to AA | 2024-08-03 | 2024 YMCA Long Course Championships fast pool |
| 100 Backstroke | LCM | 1:17.67 | B+5.08s to BB | 2024-06-17 | NPAC LCM Mixed Gender Pentathlon Meet |
| 50 Breaststroke | LCM | 37.63 | BB+2.54s to A | 2024-07-01 | LAC Arena Classic |
| 100 Breaststroke | LCM | 1:22.22 | B+1.33s to BB | 2024-06-17 | NPAC LCM Mixed Gender Pentathlon Meet |
| 100 Butterfly | LCM | 1:11.35 | B+1.66s to BB | 2024-06-17 | NPAC LCM Mixed Gender Pentathlon Meet |
| 200 Individual Medley | LCM | 2:36.23 | BB+8.14s to A | 2024-06-17 | NPAC LCM Mixed Gender Pentathlon Meet |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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 | LCM | 25.24 | flying | 200 Medley Relay (leg 4) | 2024-07-30 | 2024 YMCA Long Course Championships |
| 100 Freestyle | LCM | 54.55 | flying | 400 Medley Relay (leg 4) | 2024-08-03 | 2024 YMCA Long Course 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 17-18 · LCM
1301 points (2/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 400 FR LCM | 4:30.83 | 739 |
| 200 IM LCM | 2:36.23 | 562 |
| 200 BK LCM | — | 0 |
| 200 BR LCM | — | 0 |
| 200 FL LCM | — | 0 |
| 400 IM LCM | — | 0 |
IMR 17-18 · LCM
1961 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:17.67 | 420 |
| 100 BR LCM | 1:22.22 | 496 |
| 100 FL LCM | 1:11.35 | 483 |
| 200 IM LCM | 2:36.23 | 562 |
| 200 FR LCM | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle LCM 59.02 split/total mismatch
Front half 28.07s · back half 30.95s
400 Freestyle LCM 4:30.83 split/total mismatch
800 Freestyle LCM 9:38.69 split/total mismatch
1500 Freestyle LCM 18:13.31 RT 0.71s
Front half 543.31s · back half 550.00s
200 Individual Medley LCM 2:36.23 split/total mismatch
Front half 76.74s · back half 79.49s
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.