Jack Brennan
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.21 | AA+0.82s to AAA·+0.62s to Sectionals | 2025-03-15 | 2025 ISI Winter 11-14 Age Group Championshipsvenue |
| 100 Freestyle | SCY | 49.95 | AA+0.96s to AAA·+0.96s to Sectionals | 2025-03-16 | 2025 ISI Winter 11-14 Age Group Championshipsvenue |
| 200 Freestyle | SCY | 1:51.39 | AA+4.30s to AAA·+3.90s to Sectionals | 2026-03-01 | 2026 Winter ISI Regionals- TIDE - copiedvenue |
| 500 Freestyle | SCY | 5:03.71 | AA+12.62s to AAA·+10.82s to Sectionals | 2026-02-28 | 2026 Winter ISI Regionals- TIDE - copiedvenue |
| 50 Backstroke | SCY | 27.54 | BB+0.25s to A·+3.05s to Sectionals | 2025-03-14 | 2025 ISI Winter 11-14 Age Group Championshipsvenue |
| 100 Backstroke | SCY | 58.39 | BB+0.30s to A·+2.30s to Sectionals | 2026-07-19 | 2026 ISI Summer PAC Regionalfast pool |
| 200 Backstroke | SCY | 2:05.67 | A+3.68s to AA·+4.28s to Sectionals | 2026-07-18 | 2026 ISI Summer PAC Regionalfast pool |
| 100 Butterfly | SCY | 59.25 | BB+1.56s to A·+5.26s to Sectionals | 2025-03-14 | 2025 ISI Winter 11-14 Age Group Championshipsvenue |
| 200 Individual Medley | SCY | 2:17.96 | BB+8.27s to A·+16.97s to Sectionals | 2024-07-14 | 2024 IL BSC Summer Regional Championshipsslow pool |
| 400 Individual Medley | SCY | 4:28.11 | A+2.02s to AA·+4.12s to Sectionals | 2026-07-17 | 2026 ISI Summer PAC Regionalfast pool |
| 100 Freestyle | LCM | 1:00.88 | A+1.89s to AA·+4.29s to Sectionals | 2024-07-18 | 2024 IL Swimming LC Age Group Championshipsvenue |
| 100 Backstroke | LCM | 1:10.42 | BB+2.33s to A·+6.03s to Sectionals | 2024-07-18 | 2024 IL Swimming LC Age Group Championshipsvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.
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 | 24.39 | flat | 200 Free Relay | 2024-07-14 | 2024 IL BSC Summer Regional Championships |
| 50 Freestyle | SCY | 23.74 | flying | 200 Medley Relay (leg 4) | 2025-07-19 | 2025 ISI Summer ACAD Regional |
| 50 Freestyle | SCY | 22.51 | flying | 200 Free Relay (leg 2) | 2025-03-13 | 2025 ISI Winter 11-14 Age Group Championships |
| 100 Freestyle | SCY | 50.96 | flat | 400 Free Relay | 2025-03-16 | 2025 ISI Winter 11-14 Age Group Championships |
| 100 Freestyle | SCY | 52.46 | flying | 400 Free Relay (leg 2) | 2024-03-10 | 2024 IL Swimming SC Age Group Championships |
| 100 Freestyle | SCY | 52.13 | flying | 400 Medley Relay (leg 4) | 2024-03-09 | 2024 IL Swimming SC Age Group Championships |
| 200 Freestyle | SCY | 1:54.08 | flat | 800 Free Relay | 2025-03-14 | 2025 ISI Winter 11-14 Age Group Championships |
| 200 Freestyle | SCY | 1:54.86 | flying | 800 Free Relay (leg 2) | 2024-03-08 | 2024 IL Swimming SC Age Group Championships |
| 50 Backstroke | SCY | 27.45 | flat | 200 Medley Relay | 2025-03-14 | 2025 ISI Winter 11-14 Age Group Championships |
| 100 Butterfly | SCY | 57.51 | flying | 400 Medley Relay (leg 3) | 2025-03-15 | 2025 ISI Winter 11-14 Age Group Championships |
| 100 Freestyle | LCM | 59.28 | flying | 400 Free Relay (leg 2) | 2024-07-20 | 2024 IL Swimming LC Age Group Championships |
| 100 Freestyle | LCM | 59.49 | flying | 400 Medley Relay (leg 4) | 2024-07-21 | 2024 IL Swimming LC Age Group Championships |
| 200 Freestyle | LCM | 2:12.03 | flat | 800 Free Relay | 2024-07-19 | 2024 IL Swimming LC Age Group 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 15-16 · SCY
2718 points (4/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:03.71 | 752 |
| 200 BK SCY | 2:05.67 | 683 |
| 200 IM SCY | 2:17.96 | 552 |
| 400 IM SCY | 4:28.11 | 731 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
2588 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:51.39 | 767 |
| 100 BK SCY | 58.39 | 654 |
| 100 FL SCY | 59.25 | 615 |
| 200 IM SCY | 2:17.96 | 552 |
| 100 BR SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 49.95 RT 0.62s
Front half 24.22s · back half 25.73s
200 Freestyle SCY 1:51.39
Front half 54.36s · back half 57.03s
500 Freestyle SCY 5:03.71
Front half 150.00s · back half 153.71s
100 Backstroke SCY 58.39
Front half 28.56s · back half 29.83s
200 Backstroke SCY 2:05.67
Front half 62.84s · back half 62.83s
100 Butterfly SCY 59.25 RT 0.63s
Front half 27.29s · back half 31.96s
200 Individual Medley SCY 2:17.96
Front half 64.36s · back half 73.60s
400 Individual Medley SCY 4:28.11
Front half 128.00s · back half 140.11s
100 Freestyle LCM 1:00.88
Front half 29.49s · back half 31.39s
100 Backstroke LCM 1:10.42
Front half 34.34s · back half 36.08s
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.
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.