swimJameson Jeffery
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 33.90 | 2026-05-30 | PVST Splash Into Summer fast pool | |
| 50 Backstroke | SCY | 40.91 | 2026-05-30 | PVST Splash Into Summer fast pool | |
| 100 Backstroke | SCY | 1:41.44 | 2025-11-22 | 2025 CANY Cranberry venue | |
| 50 Breaststroke | SCY | 46.21 | 2025-11-22 | 2025 CANY Cranberry venue | |
| 100 Breaststroke | SCY | 1:35.94 | 2026-05-30 | PVST Splash Into Summer fast pool | |
| 25 Butterfly | SCY | 21.36 | 2025-06-07 | 2025 CA CANY June Minions Meet slow pool | |
| 50 Butterfly | SCY | 44.27 | 2026-03-07 | PVST March Madness venue | |
| 100 Individual Medley | SCY | 1:34.38 | 2026-03-07 | PVST March Madness venue | |
| 50 Freestyle | LCM | 36.04 | 2026-06-14 | 2026 SCS June AG Invite venue | |
| 100 Freestyle | LCM | 1:23.00 | 2026-06-28 | 2026 Class-Malibu Waves Free Weekend Invite venue | |
| 50 Backstroke | LCM | 51.45 | 2026-04-25 | 2026 SBSC April LC Pentathlon venue | |
| 100 Backstroke | LCM | 1:49.16 | 2026-05-23 | BUEN Memorial Day LC Meet venue | |
| 50 Breaststroke | LCM | 49.80 | 2026-06-14 | 2026 SCS June AG Invite venue | |
| 100 Breaststroke | LCM | 1:46.88 | 2026-06-13 | 2026 SCS June AG Invite venue | |
| 50 Butterfly | LCM | 45.59 | 2026-06-28 | 2026 Class-Malibu Waves Free Weekend Invite venue |
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 | 38.08 | flying | 200 Free Relay (leg 2) | 2026-06-13 | 2026 SCS June AG Invite |
| 50 Breaststroke | LCM | 54.77 | flying | 200 Medley Relay (leg 2) | 2026-06-12 | 2026 SCS June AG Invite |
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 10 & under · LCM
1024 points (2/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:49.16 | 393 |
| 100 BR LCM | 1:46.88 | 631 |
| 200 FR LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 10 & under · LCM
1983 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:23.00 | 594 |
| 50 BK LCM | 51.45 | 371 |
| 50 BR LCM | 49.80 | 578 |
| 50 FL LCM | 45.59 | 440 |
| 200 IM LCM | — | 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 1:41.44
Front half 47.51s · back half 53.93s
100 Breaststroke SCY 1:35.94
Front half 46.84s · back half 49.10s
100 Individual Medley SCY 1:34.38
Front half 46.41s · back half 47.97s
100 Freestyle LCM 1:23.00
Front half 39.97s · back half 43.03s
100 Breaststroke LCM 1:46.88
Front half 51.59s · back half 55.29s
Progression
Faster times are higher. One card per event, all courses & history.