Jack O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 27.98 | A+0.99s to AA·+5.69s to Sectionals | 2026-10-18 | 2026 HSA Fran Norris Meetvenue |
| 100 Freestyle | SCY | 2:56.59 | +105.10s to B·+128.30s to Sectionals | 2025-01-01 | DYNA- Eastern Classic |
| 200 Freestyle | SCY | 2:15.10 | BB+1.41s to A·+29.31s to Sectionals | 2026-10-18 | 2026 HSA Fran Norris Meetvenue |
| 500 Freestyle | SCY | 6:07.53 | BB+7.54s to A·+81.44s to Sectionals | 2026-10-17 | 2026 HSA Fran Norris Meetvenue |
| 50 Backstroke | SCY | 38.29 | B+2.70s to BB·+12.60s to Sectionals | 2025-02-15 | 2025 Peach State Championship |
| 100 Backstroke | SCY | 1:09.55 | BB+0.26s to A·+14.46s to Sectionals | 2026-10-18 | 2026 HSA Fran Norris Meetvenue |
| 50 Breaststroke | SCY | 35.24 | A+0.25s to AA·+5.75s to Sectionals | 2026-10-17 | 2026 HSA Fran Norris Meetvenue |
| 100 Breaststroke | SCY | 1:34.42 | +1.83s to B·+31.73s to Sectionals | 2025-12-13 | 2025 Classic City Invitational Meetvenue |
| 50 Butterfly | SCY | 32.09 | BB+0.90s to A·+7.80s to Sectionals | 2026-10-18 | 2026 HSA Fran Norris Meetvenue |
| 100 Individual Medley | SCY | 1:10.21 | BB+0.22s to A | 2026-10-17 | 2026 HSA Fran Norris Meetvenue |
| 200 Individual Medley | SCY | 2:29.75 | A+4.16s to AA·+30.36s to Sectionals | 2026-10-16 | 2026 HSA Fran Norris Meetvenue |
| 50 Freestyle | LCM | 33.10 | BB+1.01s to A·+7.51s to Sectionals | 2026-01-01 | Huntsville Swim Association |
| 100 Freestyle | LCM | 1:10.35 | A+2.86s to AA·+15.06s to Sectionals | 2026-06-28 | 2026 HSA June Invitationalvenue |
| 200 Freestyle | LCM | 3:02.27 | +3.08s to B·+61.38s to Sectionals | 2025-06-05 | 2025 DYNA Summer Invitational |
| 50 Backstroke | LCM | 37.60 | A+1.51s to AA·+7.41s to Sectionals | 2026-06-26 | 2026 HSA June Invitationalvenue |
| 100 Backstroke | LCM | 1:29.42 | BB+7.53s to A·+24.93s to Sectionals | 2025-06-27 | Gold Summer Invite 2025 |
| 50 Breaststroke | LCM | 42.16 | BB+0.17s to A·+7.97s to Sectionals | 2026-01-01 | Huntsville Swim Association |
| 100 Breaststroke | LCM | 1:32.34 | BB+1.05s to A·+19.95s to Sectionals | 2026-06-26 | 2026 HSA June Invitationalvenue |
| 50 Butterfly | LCM | 36.89 | BB+1.60s to A·+9.10s to Sectionals | 2026-06-28 | 2026 HSA June Invitationalvenue |
| 100 Butterfly | LCM | 1:43.47 | +8.38s to B·+42.98s to Sectionals | 2025-06-05 | 2025 DYNA Summer Invitational |
| 200 Individual Medley | LCM | 2:53.15 | A+6.66s to AA·+35.46s to Sectionals | 2026-06-28 | 2026 HSA June Invitationalvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 12.
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.
IMX / IMR
IMX 11-12 · SCY
2310 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:07.53 | 629 |
| 100 BK SCY | 1:09.55 | 625 |
| 100 BR SCY | 1:34.42 | 370 |
| 200 IM SCY | 2:29.75 | 686 |
| 100 FL SCY | — | 0 |
IMR 11-12 · SCY
2994 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:15.10 | 649 |
| 50 BK SCY | 38.29 | 399 |
| 50 BR SCY | 35.24 | 713 |
| 50 FL SCY | 32.09 | 575 |
| 100 IM SCY | 1:10.21 | 658 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
200 Freestyle SCY 2:15.10
Front half 66.77s · back half 68.33s
500 Freestyle SCY 6:07.53
Front half 191.30s · back half 176.23s
100 Backstroke SCY 1:09.55
Front half 33.92s · back half 35.63s
100 Breaststroke SCY 1:34.42
Front half 44.05s · back half 50.37s
100 Individual Medley SCY 1:10.21
Front half 33.07s · back half 37.14s
200 Individual Medley SCY 2:29.75
Front half 70.99s · back half 78.76s
200 Freestyle LCM 3:02.27 split/total mismatch
100 Breaststroke LCM 1:32.34
Front half 44.78s · back half 47.56s
100 Butterfly LCM 1:43.47 split/total mismatch
Front half 45.88s · back half 57.59s
200 Individual Medley LCM 2:53.15
Front half 81.13s · back half 92.02s
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.