Jack Ackerman
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.44 | A+0.35s to AA | 2024-10-12 | 101224fvyt results |
| 100 Freestyle | SCY | 47.09 | AAA+1.00s to AAAA | 2025-11-14 | 2025 CT WYW McDowell Y Thanksgiving Invite |
| 200 Freestyle | SCY | 1:39.71 | AAAA | 2026-04-01 | 2026 YMCA Short Course Nationals fast pool |
| 500 Freestyle | SCY | 4:30.45 | AAAA | 2026-04-02 | 2026 YMCA Short Course Nationals fast pool |
| 1000 Freestyle | SCY | 9:31.02 | AAAA | 2026-03-30 | 2026 YMCA Short Course Nationals fast pool |
| 100 Backstroke | SCY | 56.54 | A+1.65s to AA | 2024-10-26 | 102624lehy results |
| 200 Backstroke | SCY | 1:51.30 | AAA+1.71s to AAAA | 2026-03-31 | 2026 YMCA Short Course Nationals fast pool |
| 100 Breaststroke | SCY | 1:05.58 | BB+0.89s to A | 2026-03-21 | 2026 NE YNS YMCA New England Championship venue |
| 100 Butterfly | SCY | 55.46 | A+1.17s to AA | 2025-02-08 | 020825grit results |
| 200 Individual Medley | SCY | 1:59.03 | AA+1.54s to AAA | 2025-12-12 | 121225bull results |
| 400 Individual Medley | SCY | 4:27.44 | A+2.95s to AA | 2025-10-18 | 101825fvyt results |
| 50 Freestyle | LCM | 25.05 | AAA+0.66s to AAAA | 2026-06-19 | 061926cac results venue |
| 100 Freestyle | LCM | 56.29 | AA+0.70s to AAA | 2025-06-08 | 2025 NE CRIM JUNE TEAM SPECIATY venue |
| 200 Freestyle | LCM | 2:00.02 | AAA+3.43s to AAAA | 2025-06-08 | 2025 NE CRIM JUNE TEAM SPECIATY venue |
| 400 Freestyle | LCM | 4:26.72 | AA+6.13s to AAA | 2023-07-28 | 2023 ME CAC Destination Athlete Northeast Inv slow pool |
| 800 Freestyle | LCM | 9:21.44 | AA+19.95s to AAA | 2023-07-30 | 2023 ME CAC Destination Athlete Northeast Inv slow pool |
| 100 Backstroke | LCM | 1:01.60 | AAA+2.51s to AAAA | 2026-06-19 | 061926cac results venue |
| 100 Butterfly | LCM | 1:04.13 | A+1.74s to AA | 2025-06-08 | 2025 NE CRIM JUNE TEAM SPECIATY venue |
| 200 Individual Medley | LCM | 2:29.34 | BB+0.75s to A | 2025-06-06 | 2025 NE CRIM JUNE TEAM SPECIATY |
| 400 Individual Medley | LCM | 5:32.34 | BB+13.35s to A | 2023-07-29 | 2023 ME CAC Destination Athlete Northeast Inv slow pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 21.24 | flying | 200 Free Relay (leg 2) | 2026-04-01 | 2026 YMCA Short Course Nationals |
| 100 Freestyle | SCY | 46.14 | flying | 400 Free Relay (leg 4) | 2026-04-03 | 2026 YMCA Short Course Nationals |
| 200 Freestyle | SCY | 1:40.31 | flying | 800 Free Relay (leg 4) | 2026-03-30 | 2026 YMCA Short Course Nationals |
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 · SCY
3437 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 4:30.45 | 1021 |
| 200 BK SCY | 1:51.30 | 910 |
| 200 IM SCY | 1:59.03 | 802 |
| 400 IM SCY | 4:27.44 | 704 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
IMR 17-18 · SCY
3777 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:39.71 | 1014 |
| 100 BK SCY | 56.54 | 646 |
| 100 BR SCY | 1:05.58 | 622 |
| 100 FL SCY | 55.46 | 693 |
| 200 IM SCY | 1:59.03 | 802 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 47.09 split/total mismatch
Front half 22.98s · back half 24.11s
200 Freestyle SCY 1:39.71 RT 0.65s
Front half 48.58s · back half 51.13s
500 Freestyle SCY 4:30.45 RT 0.66s
Front half 133.52s · back half 136.93s
1000 Freestyle SCY 9:31.02 RT 0.73s
Front half 282.83s · back half 288.19s
100 Backstroke SCY 56.54 split/total mismatch
Front half 28.07s · back half 28.47s
200 Backstroke SCY 1:51.30 RT 0.71s
Front half 53.94s · back half 57.36s
100 Breaststroke SCY 1:05.58
Front half 30.70s · back half 34.88s
100 Butterfly SCY 55.46 split/total mismatch
Front half 25.90s · back half 29.56s
200 Individual Medley SCY 1:59.03 split/total mismatch
400 Individual Medley SCY 4:27.44 split/total mismatch
100 Freestyle LCM 56.29
Front half 27.56s · back half 28.73s
200 Freestyle LCM 2:00.02
Front half 58.12s · back half 61.90s
400 Freestyle LCM 4:26.72
Front half 131.06s · back half 135.66s
800 Freestyle LCM 9:21.44
Front half 277.57s · back half 283.87s
100 Butterfly LCM 1:04.13
Front half 30.56s · back half 33.57s
200 Individual Medley LCM 2:29.34 split/total mismatch
400 Individual Medley LCM 5:32.34
Front half 164.87s · back half 167.47s
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.