Kate O'Brien
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 24.53 | AAA+0.54s to AAAA·Sectionals ✓+0.64s to Futures | 2021-12-10 | 2026 13 & OVER Kentucky State SCY Championship |
| 100 Freestyle | SCY | 56.40 | AA+1.91s to AAA·+2.31s to Sectionals | 2026-03-15 | 2026 NC TAC Speedo Champions Series ESSZvenue |
| 200 Freestyle | SCY | 2:09.17 | BB+1.08s to A·+12.48s to Sectionals | 2025-10-31 | 2025 Kentucky Aquatics Autumn Classic |
| 500 Freestyle | SCY | 5:37.78 | A+7.09s to AA·+27.89s to Sectionals | 2024-03-23 | 2024 13 & OVER Kentucky SCY Championshipvenue |
| 50 Backstroke | SCY | 28.83 | AA+1.04s to AAA·+0.24s to Sectionals | 2026-01-16 | 2026 CLPR Sidney Day Mid-Winter Classic |
| 100 Backstroke | SCY | 59.04 | AA+0.15s to AAA·Sectionals ✓+1.95s to Futures | 2024-01-01 | 2024 13 & OVER Kentucky SCY Championship |
| 200 Backstroke | SCY | 2:14.70 | A+1.21s to AA·+1.41s to Sectionals | 2025-03-21 | 2025 13 & OVER Kentucky SCY Championshipfast pool |
| 50 Breaststroke | SCY | 36.89 | BB+1.50s to A·+3.30s to Sectionals | 2026-01-01 | card splash n dash results |
| 100 Breaststroke | SCY | 1:08.45 | AA+0.46s to AAA·Sectionals ✓+2.96s to Futures | 2026-01-16 | 2026 CLPR Sidney Day Mid-Winter Classic |
| 200 Breaststroke | SCY | 2:43.21 | BB+2.52s to A·+6.92s to Sectionals | 2025-03-22 | 2025 13 & OVER Kentucky SCY Championshipfast pool |
| 50 Butterfly | SCY | 26.89 | AAA+0.60s to AAAA·Sectionals ✓+1.20s to Futures | 2026-01-16 | 2026 CLPR Sidney Day Mid-Winter Classic |
| 100 Butterfly | SCY | 1:08.21 | BB+4.12s to A·+9.12s to Sectionals | 2025-01-17 | KY CLPR Sidney Day Mid Winter Meet |
| 100 Individual Medley | SCY | 1:25.76 | 2020-01-01 | 2020quarantineclassicresultsreportkya | |
| 200 Individual Medley | SCY | 2:10.75 | AAA+5.26s to AAAA·Sectionals ✓+4.36s to Futures | 2024-01-01 | 2024 13 & OVER Kentucky SCY Championship |
| 400 Individual Medley | SCY | 4:56.75 | A+2.56s to AA·+18.06s to Sectionals | 2024-03-22 | 2024 13 & OVER Kentucky SCY Championshipvenue |
| 50 Freestyle | LCM | 29.18 | AA+0.59s to AAA·+0.79s to Sectionals | 2025-07-20 | 25 KYLSC Long Course Championshipfast pool |
| 100 Freestyle | LCM | 1:06.40 | A+1.91s to AA·+5.11s to Sectionals | 2025-05-17 | Kentucky Aquatics Derby Classicvenue |
| 200 Freestyle | LCM | 2:25.23 | A+5.94s to AA·+13.14s to Sectionals | 2025-05-16 | Kentucky Aquatics Derby Classicvenue |
| 400 Freestyle | LCM | 5:13.86 | BB+6.17s to A·+35.07s to Sectionals | 2024-05-18 | Kentucky Aquatics Derby Classicvenue |
| 800 Freestyle | LCM | 10:25.40 | A+16.51s to AA·+49.71s to Sectionals | 2025-07-19 | 25 KYLSC Long Course Championshipfast pool |
| 50 Backstroke | LCM | 33.56 | AA+1.07s to AAA·+0.67s to Sectionals | 2025-07-17 | 25 KYLSC Long Course Championshipfast pool |
| 100 Backstroke | LCM | 1:08.09 | AAA+2.50s to AAAA·Sectionals ✓+1.30s to Futures | 2026-01-01 | Elizabethtown Swim Team, Inc. |
| 200 Backstroke | LCM | 2:33.73 | AA+6.14s to AAA·+1.74s to Sectionals | 2025-07-18 | 25 KYLSC Long Course Championshipfast pool |
| 100 Breaststroke | LCM | 1:26.80 | BB+1.71s to A·+6.21s to Sectionals | 2015-06-26 | 2024 Synergy Dryland Summer Sizzler |
| 200 Breaststroke | LCM | 3:08.29 | BB+5.90s to A·+12.30s to Sectionals | 2015-06-26 | 2024 Synergy Dryland Summer Sizzler |
| 50 Butterfly | LCM | 32.41 | A+0.22s to AA·+1.12s to Sectionals | 2024-05-05 | 2024 CKA DERBY DASHslow pool |
| 100 Butterfly | LCM | 1:14.90 | BB+2.51s to A·+7.51s to Sectionals | 2026-01-01 | Elizabethtown Swim Team, Inc. |
| 200 Individual Medley | LCM | 2:37.88 | A+0.39s to AA·+6.49s to Sectionals | 2024-07-21 | 2024 Kentucky Swimming LC State Championshipvenue |
| 400 Individual Medley | LCM | 5:40.20 | A+5.11s to AA·+20.51s to Sectionals | 2024-07-19 | 2024 Kentucky Swimming LC State Championshipvenue |
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 | 25.31 | flat | 200 Free Relay | 2025-03-22 | 2025 13 & OVER Kentucky SCY Championship |
| 50 Freestyle | SCY | 24.98 | flying | 200 Medley Relay (leg 4) | 2024-11-10 | 2024 Kentucky Aquatics Autumn Classic |
| 100 Freestyle | SCY | 55.55 | flat | 400 Free Relay | 2025-03-21 | 2025 13 & OVER Kentucky SCY Championship |
| 100 Freestyle | SCY | 55.32 | flying | 400 Free Relay (leg 2) | 2026-03-15 | 2026 NC TAC Speedo Champions Series ESSZ |
| 50 Backstroke | SCY | 27.68 | flat | 200 Medley Relay | 2025-03-23 | 2025 13 & OVER Kentucky SCY Championship |
| 100 Backstroke | SCY | 59.94 | flat | 400 Medley Relay | 2026-03-13 | 2026 NC TAC Speedo Champions Series ESSZ |
| 50 Freestyle | LCM | 31.56 | flat | 200 Free Relay | 2026-07-18 | 2026 Kentucky Swimming LC Championship 2 - co |
| 50 Freestyle | LCM | 29.71 | flying | 200 Medley Relay (leg 4) | 2024-07-20 | 2024 Kentucky Swimming LC State Championship |
| 50 Freestyle | LCM | 28.57 | flying | 200 Free Relay (leg 2) | 2025-07-18 | 25 KYLSC Long Course Championship |
| 100 Freestyle | LCM | 1:05.16 | flying | 400 Free Relay (leg 4) | 2024-05-18 | Kentucky Aquatics Derby Classic |
| 50 Backstroke | LCM | 33.55 | flat | 200 Medley Relay | 2025-07-20 | 25 KYLSC Long Course Championship |
| 100 Backstroke | LCM | 1:14.33 | flat | 400 Medley Relay | 2026-07-16 | 2026 Kentucky Swimming LC Championship 2 - co |
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
3654 points (5/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 5:37.78 | 706 |
| 200 BK SCY | 2:14.70 | 737 |
| 200 BR SCY | 2:43.21 | 624 |
| 200 IM SCY | 2:10.75 | 865 |
| 400 IM SCY | 4:56.75 | 722 |
| 200 FL SCY | — | 0 |
IMR 15-16 · SCY
3753 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:09.17 | 648 |
| 100 BK SCY | 59.04 | 857 |
| 100 BR SCY | 1:08.45 | 836 |
| 100 FL SCY | 1:08.21 | 547 |
| 200 IM SCY | 2:10.75 | 865 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 56.40
Front half 27.04s · back half 29.36s
500 Freestyle SCY 5:37.78
Front half 165.92s · back half 171.86s
200 Backstroke SCY 2:14.70
Front half 64.73s · back half 69.97s
200 Breaststroke SCY 2:43.21
Front half 77.95s · back half 85.26s
400 Individual Medley SCY 4:56.75
Front half 144.99s · back half 151.76s
100 Freestyle LCM 1:06.40
Front half 31.72s · back half 34.68s
200 Freestyle LCM 2:25.23
Front half 71.18s · back half 74.05s
400 Freestyle LCM 5:13.86
Front half 158.48s · back half 155.38s
800 Freestyle LCM 10:25.40
Front half 311.37s · back half 314.03s
200 Backstroke LCM 2:33.73
Front half 73.78s · back half 79.95s
200 Breaststroke LCM 3:08.29 split/total mismatch
Front half 91.22s · back half 97.07s
200 Individual Medley LCM 2:37.88
Front half 74.18s · back half 83.70s
400 Individual Medley LCM 5:40.20
Front half 166.41s · back half 173.79s
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.