swimKatelynn Zhou
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 23.22 | AAAA·Winter JNs ✓+0.23s to Jr Nationals | 2025-11-12 | lac fall classic meet results 016299 |
| 100 Freestyle | SCY | 51.13 | AAAA·Futures ✓+0.74s to Winter JNs | 2025-03-06 | LAC 2025 Speedo Sectional Championship Series |
| 200 Freestyle | SCY | 1:54.08 | AAA+2.69s to AAAA·Sectionals ✓+1.79s to Futures | 2025-03-06 | LAC 2025 Speedo Sectional Championship Series |
| 50 Backstroke | SCY | 27.12 | AAA+0.93s to AAAA·Sectionals ✓+0.83s to Futures | 2026-03-05 | LAC Spring Speedo Sectionals |
| 100 Backstroke | SCY | 57.15 | AAA+1.36s to AAAA·Sectionals ✓+0.06s to Futures | 2025-03-06 | LAC 2025 Speedo Sectional Championship Series |
| 50 Breaststroke | SCY | 32.28 | AA+0.29s to AAA·Sectionals ✓+2.49s to Futures | 2020-03-08 | 2020 Short Course TAGS Championshipsvenue |
| 100 Breaststroke | SCY | 1:04.64 | AAA+0.75s to AAAA·Futures ✓+1.55s to Winter JNs | 2025-12-12 | 2025 West Speedo Winter Juniorsfast pool |
| 200 Breaststroke | SCY | 2:16.42 | AAAA·Winter JNs ✓+1.03s to Jr Nationals | 2025-03-06 | LAC 2025 Speedo Sectional Championship Series |
| 50 Butterfly | SCY | 25.72 | AAAA·Sectionals ✓+0.03s to Futures | 2025-11-12 | lac fall classic meet results 016299 |
| 100 Butterfly | SCY | 55.34 | AAAA·Futures ✓+0.65s to Winter JNs | 2025-11-12 | lac fall classic meet results 016299 |
| 100 Individual Medley | SCY | 1:02.05 | 2020-03-06 | 2020 Short Course TAGS Championshipsvenue | |
| 200 Individual Medley | SCY | 2:00.18 | AAAA·Jr Nationals ✓+1.19s to Nationals | 2025-12-11 | 2025 West Speedo Winter Juniorsfast pool |
| 400 Individual Medley | SCY | 4:22.19 | AAAA·Futures ✓+0.50s to Winter JNs | 2025-11-12 | lac fall classic meet results 016299 |
| 50 Freestyle | LCM | 26.26 | AAAA·Jr Nationals ✓+0.07s to Nationals | 2025-08-03 | 2025 Speedo Junior National Championshipsfast pool |
| 50 Breaststroke | LCM | 34.00 | AAAA·Futures ✓+0.31s to Jr Nationals | 2025-07-31 | 2025 Speedo Junior National Championshipsfast pool |
| 100 Breaststroke | LCM | 1:28.66 | BB+4.37s to A·+8.07s to Sectionals | 2018-07-25 | 2018 Long Course Texas Age Group Championship |
| 200 Breaststroke | LCM | 2:43.00 | AAA+1.91s to AAAA·Futures ✓+4.41s to Jr Nationals | 2025-08-02 | 2025 Speedo Junior National Championshipsfast pool |
| 50 Butterfly | LCM | 28.83 | AAAA·Futures ✓+0.44s to Jr Nationals | 2025-08-02 | 2025 Speedo Junior National Championshipsfast pool |
| 200 Individual Medley | LCM | 2:22.54 | AAAA·Futures ✓+0.45s to Winter JNs | 2025-08-03 | 2025 Speedo Junior National Championshipsfast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.
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 | 22.66 | flying | 200 Free Relay (leg 3) | 2025-12-12 | 2025 West Speedo Winter Juniors |
| 100 Freestyle | SCY | 51.93 | flat | 400 Free Relay | 2021-12-11 | 2021 West Speedo Winter Juniors |
| 100 Freestyle | SCY | 51.75 | flying | 400 Medley Relay (leg 4) | 2021-12-09 | 2021 West Speedo Winter Juniors |
| 100 Freestyle | SCY | 50.01 | flying | 400 Free Relay (leg 4) | 2025-12-13 | 2025 West Speedo Winter Juniors |
| 200 Freestyle | SCY | 1:51.56 | flat | 800 Free Relay | 2025-12-10 | 2025 West Speedo Winter Juniors |
| 50 Breaststroke | SCY | 29.06 | flying | 200 Medley Relay (leg 2) | 2025-12-10 | 2025 West Speedo Winter Juniors |
| 100 Breaststroke | SCY | 1:03.22 | flying | 400 Medley Relay (leg 2) | 2025-12-11 | 2025 West Speedo Winter Juniors |
| 50 Freestyle | LCM | 26.30 | flat | 200 Free Relay | 2025-07-30 | 2025 Speedo Junior National Championships |
| 100 Freestyle | LCM | 57.71 | flying | 400 Free Relay (leg 3) | 2025-08-02 | 2025 Speedo Junior National Championships |
| 200 Freestyle | LCM | 2:09.42 | flying | 800 Free Relay (leg 3) | 2025-07-31 | 2025 Speedo Junior National Championships |
| 50 Butterfly | LCM | 28.05 | flying | 200 Medley Relay (leg 3) | 2025-08-01 | 2025 Speedo Junior National Championships |
| 100 Butterfly | LCM | 1:02.83 | flying | 400 Medley Relay (leg 3) | 2025-08-03 | 2025 Speedo Junior National 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 17-18 · SCY
3118 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BR SCY | 2:16.42 | 1046 |
| 200 IM SCY | 2:00.18 | 1063 |
| 400 IM SCY | 4:22.19 | 1009 |
| 500 FR SCY | — | 0 |
| 200 BK SCY | — | 0 |
| 200 FL SCY | — | 0 |
IMR 17-18 · SCY
4802 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 1:54.08 | 906 |
| 100 BK SCY | 57.15 | 890 |
| 100 BR SCY | 1:04.64 | 952 |
| 100 FL SCY | 55.34 | 991 |
| 200 IM SCY | 2:00.18 | 1063 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
50 Freestyle SCY 23.22 split/total mismatch
Front half 30.17s · back half -6.95s
100 Freestyle SCY 51.13 split/total mismatch
200 Freestyle SCY 1:54.08 split/total mismatch
Front half 28.41s · back half 85.67s
100 Backstroke SCY 57.15 split/total mismatch
Front half 27.77s · back half 29.38s
100 Breaststroke SCY 1:04.64
Front half 30.58s · back half 34.06s
200 Breaststroke SCY 2:16.42 split/total mismatch
100 Butterfly SCY 55.34 split/total mismatch
Front half 28.10s · back half 27.24s
100 Individual Medley SCY 1:02.05
Front half 28.64s · back half 33.41s
200 Individual Medley SCY 2:00.18
Front half 57.19s · back half 62.99s
200 Breaststroke LCM 2:43.00 RT 0.62s
Front half 76.16s · back half 86.84s
200 Individual Medley LCM 2:22.54 RT 0.61s
Front half 67.91s · back half 74.63s
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.