swimJacob Efros
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 37.24 | B+2.45s to BB·+14.85s to Sectionals | 2026-06-06 | Piranhas Summer Kick-Off Meet 2026venue |
| 100 Freestyle | SCY | 1:26.33 | B+7.04s to BB·+37.84s to Sectionals | 2026-06-06 | Piranhas Summer Kick-Off Meet 2026venue |
| 50 Backstroke | SCY | 41.66 | BB+3.87s to A·+17.97s to Futures | 2026-02-28 | AD 12 and Under Gold Championshipsvenue |
| 100 Backstroke | SCY | 1:30.44 | BB+10.55s to A·+35.95s to Sectionals | 2026-03-01 | AD 12 and Under Gold Championshipsvenue |
| 50 Breaststroke | SCY | 52.59 | B+4.80s to BB·+26.30s to Futures | 2026-02-28 | AD 12 and Under Gold Championshipsvenue |
| 50 Butterfly | SCY | 51.82 | +5.33s to B·+28.93s to Futures | 2026-02-07 | AD 12 and Under Silver Championships |
| 100 Individual Medley | SCY | 1:36.95 | B+7.16s to BB | 2026-03-01 | AD 12 and Under Gold Championshipsvenue |
| 50 Freestyle | SCM | 42.26 | B+3.87s to BB·+17.57s to Sectionals | 2026-05-30 | 2026 Starfish Meter Madnessvenue |
| 50 Backstroke | SCM | 47.02 | BB+5.33s to A | 2026-05-30 | 2026 Starfish Meter Madnessvenue |
| 50 Butterfly | SCM | 54.61 | +3.22s to B | 2026-05-30 | 2026 Starfish Meter Madnessvenue |
| 100 Individual Medley | SCM | 1:48.04 | B+8.75s to BB | 2026-05-30 | 2026 Starfish Meter Madnessvenue |
| 50 Freestyle | LCM | 41.14 | B+1.35s to BB·+15.65s to Sectionals | 2026-07-19 | 2026 Adirondack Long Course Championshipsfast pool |
| 100 Freestyle | LCM | 1:33.14 | B+2.45s to BB·+37.65s to Sectionals | 2026-07-18 | 2026 Adirondack Long Course Championshipsfast pool |
| 50 Backstroke | LCM | 45.75 | BB+2.66s to A·+17.86s to Futures | 2026-07-19 | 2026 Adirondack Long Course Championshipsfast pool |
| 100 Backstroke | LCM | 1:39.51 | BB+7.22s to A·+37.52s to Sectionals | 2026-07-18 | 2026 Adirondack Long Course Championshipsfast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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.
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 | 39.07 | flying | 200 Medley Relay (leg 4) | 2026-02-28 | AD 12 and Under Gold Championships |
| 100 Freestyle | SCY | 1:24.79 | flying | 400 Free Relay (leg 4) | 2026-02-27 | AD 12 and Under Gold Championships |
| 50 Backstroke | SCY | 50.77 | flat | 200 Medley Relay | 2026-02-01 | Delmar Dolfins February Freeze |
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
519 points (1/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 100 BK LCM | 1:39.51 | 519 |
| 200 FR LCM | — | 0 |
| 100 BR LCM | — | 0 |
| 100 FL LCM | — | 0 |
| 200 IM LCM | — | 0 |
IMR 10 & under · SCY
1721 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:26.33 | 347 |
| 50 BK SCY | 41.66 | 461 |
| 50 BR SCY | 52.59 | 331 |
| 50 FL SCY | 51.82 | 209 |
| 100 IM SCY | 1:36.95 | 373 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:26.33
Front half 39.79s · back half 46.54s
100 Backstroke SCY 1:30.44
Front half 44.25s · back half 46.19s
100 Individual Medley SCY 1:36.95
Front half 45.73s · back half 51.22s
100 Individual Medley SCM 1:48.04
Front half 49.57s · back half 58.47s
100 Freestyle LCM 1:33.14
Front half 43.06s · back half 50.08s
100 Backstroke LCM 1:39.51
Front half 48.93s · back half 50.58s
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.