Tadhg O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.88 | BB+0.19s to A·+4.49s to Sectionals | 2026-02-08 | 2026 LBA Last Chance Invitevenue |
| 100 Freestyle | SCY | 59.31 | BB+1.42s to A·+10.82s to Sectionals | 2026-03-14 | 2026 Speedo Maryland Junior Championship - Sivenue |
| 200 Freestyle | SCY | 2:30.55 | +2.76s to B·+44.26s to Sectionals | 2024-11-03 | 2024 Fox Fall Invitational 2venue |
| 500 Freestyle | SCY | 6:09.66 | BB+27.97s to A·+82.27s to Sectionals | 2025-11-02 | 2025 Fox Fall Invitational 2venue |
| 1000 Freestyle | SCY | 13:41.59 | B+55.60s to BB·+222.10s to Sectionals | 2025 FSC & GTAC Distance Dualvenue | |
| 1650 Freestyle | SCY | 21:48.85 | B+20.46s to BB·+304.86s to Sectionals | 2025-11-08 | 2025 FSC & GTAC Distance Dualvenue |
| 50 Backstroke | SCY | 29.55 | A+0.46s to AA·+5.86s to Futures | 2025-12-21 | 2025 FOX Winter Clean Up Meet |
| 100 Backstroke | SCY | 1:03.36 | A+2.27s to AA·+8.87s to Sectionals | 2026-03-14 | 2026 Speedo Maryland Junior Championship - Sivenue |
| 200 Backstroke | SCY | 2:18.20 | A+5.01s to AA·+19.61s to Sectionals | 2026-03-15 | 2026 Speedo Maryland Junior Championship - Sivenue |
| 50 Breaststroke | SCY | 43.82 | +3.33s to B·+17.53s to Futures | 2024-10-19 | 2024 Fox Fall Invitational 1venue |
| 100 Breaststroke | SCY | 1:27.68 | +3.39s to B·+26.19s to Sectionals | 2025-10-18 | 2025 Fox Fall Invitational 1 - copiedvenue |
| 200 Breaststroke | SCY | 3:05.67 | +2.68s to B·+50.68s to Sectionals | 2025-11-02 | 2025 Fox Fall Invitational 2venue |
| 50 Butterfly | SCY | 28.09 | AA+0.80s to AAA·+5.20s to Futures | 2026-03-14 | 2026 Speedo Maryland Junior Championship - Sivenue |
| 100 Butterfly | SCY | 1:11.32 | B+2.83s to BB·+18.13s to Sectionals | 2026-01-31 | 2026 ASC Senior Meetvenue |
| 100 Individual Medley | SCY | 1:07.58 | 2026-03-15 | 2026 Speedo Maryland Junior Championship - Sivenue | |
| 200 Individual Medley | SCY | 2:35.24 | B+2.35s to BB·+35.85s to Sectionals | 2025-10-19 | 2025 Fox Fall Invitational 1 - copiedvenue |
| 400 Individual Medley | SCY | 5:32.84 | B+5.25s to BB·+77.75s to Sectionals | 2025-11-01 | 2025 Fox Fall Invitational 2venue |
| 50 Freestyle | LCM | 36.77 | +1.08s to B·+11.28s to Sectionals | 2024-04-14 | 2024 Fox April Long Course Invitationalvenue |
| 100 Freestyle | LCM | 1:24.37 | +6.18s to B·+28.88s to Sectionals | 2024-04-13 | 2024 Fox April Long Course Invitationalvenue |
| 200 Freestyle | LCM | 2:58.03 | +8.04s to B·+56.74s to Sectionals | 2024-04-14 | 2024 Fox April Long Course Invitationalvenue |
| 50 Backstroke | LCM | 40.73 | B+2.44s to BB·+12.84s to Futures | 2024-04-13 | 2024 Fox April Long Course Invitationalvenue |
| 100 Backstroke | LCM | 1:28.09 | +0.70s to B·+26.10s to Sectionals | 2024-04-14 | 2024 Fox April Long Course Invitationalvenue |
| 50 Breaststroke | LCM | 52.28 | +6.39s to B·+21.39s to Futures | 2024-04-14 | 2024 Fox April Long Course Invitationalvenue |
| 100 Breaststroke | LCM | 2:06.38 | +29.19s to B·+56.69s to Sectionals | 2023-04-15 | 2023 FOX April Long Course Invitationalvenue |
| 50 Butterfly | LCM | 39.76 | +0.77s to B·+13.47s to Futures | 2024-04-13 | 2024 Fox April Long Course Invitationalvenue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 13.
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 34.45 | flat | 200 Free Relay | 2023-03-11 | 2023 Speedo MD LSC JR Champs - FSC Site |
| 50 Freestyle | SCY | 29.74 | flying | 200 Free Relay (leg 3) | 2024-10-19 | 2024 Fox Fall Invitational 1 |
| 100 Freestyle | SCY | 1:03.75 | flat | 400 Free Relay | 2025-10-19 | 2025 Fox Fall Invitational 1 - copied |
| 100 Freestyle | SCY | 58.04 | flying | 400 Free Relay (leg 2) | 2026-03-14 | 2026 Speedo Maryland Junior Championship - Si |
| 50 Backstroke | SCY | 30.55 | flat | 200 Medley Relay | 2025-10-19 | 2025 Fox Fall Invitational 1 - copied |
| 100 Backstroke | SCY | 1:07.07 | flat | 400 Medley Relay | 2025-10-18 | 2025 Fox Fall Invitational 1 - copied |
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 13-14 · SCY
2306 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:09.66 | 479 |
| 200 BK SCY | 2:18.20 | 591 |
| 200 BR SCY | 3:05.67 | 352 |
| 200 IM SCY | 2:35.24 | 444 |
| 400 IM SCY | 5:32.84 | 440 |
| 200 FL SCY | — | 0 |
IMR 13-14 · SCY
2135 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:30.55 | 357 |
| 100 BK SCY | 1:03.36 | 601 |
| 100 BR SCY | 1:27.68 | 326 |
| 100 FL SCY | 1:11.32 | 407 |
| 200 IM SCY | 2:35.24 | 444 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 59.31
Front half 28.29s · back half 31.02s
200 Freestyle SCY 2:30.55
Front half 70.21s · back half 80.34s
500 Freestyle SCY 6:09.66
Front half 182.24s · back half 187.42s
1650 Freestyle SCY 21:48.85
Front half 582.57s · back half 726.28s
100 Backstroke SCY 1:03.36
Front half 30.57s · back half 32.79s
200 Backstroke SCY 2:18.20
Front half 66.92s · back half 71.28s
100 Breaststroke SCY 1:27.68
Front half 40.09s · back half 47.59s
200 Breaststroke SCY 3:05.67
Front half 88.46s · back half 97.21s
100 Butterfly SCY 1:11.32
Front half 33.67s · back half 37.65s
100 Individual Medley SCY 1:07.58
Front half 29.78s · back half 37.80s
200 Individual Medley SCY 2:35.24
Front half 70.71s · back half 84.53s
400 Individual Medley SCY 5:32.84
Front half 157.72s · back half 175.12s
100 Freestyle LCM 1:24.37
Front half 39.75s · back half 44.62s
200 Freestyle LCM 2:58.03
Front half 84.47s · back half 93.56s
100 Backstroke LCM 1:28.09
Front half 42.58s · back half 45.51s
100 Breaststroke LCM 2:06.38
Front half 59.87s · back half 66.51s
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.