swimKaily Zhou
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 20.82 | 2024-01-01 | Metropolitan Swimming Club | |
| 50 Freestyle | SCY | 31.43 | BB+0.94s to A | 2026-03-08 | 2026 MR AGUA Last Chance Invitational venue |
| 100 Freestyle | SCY | 1:07.24 | BB+0.65s to A | 2026-02-01 | 2026 MR LIE Second Chance Invitational venue |
| 200 Freestyle | SCY | 2:21.97 | A+3.08s to AA | 2026-03-15 | 2026 MR SC Junior Metropolitan Championships venue |
| 500 Freestyle | SCY | 6:16.83 | A+3.84s to AA | 2026-03-14 | 2026 MR SC Junior Metropolitan Championships venue |
| 25 Backstroke | SCY | 24.51 | 2023-01-01 | Sanction #: 231007 | |
| 50 Backstroke | SCY | 40.49 | B+2.80s to BB | 2026-01-19 | 2026 MR AGUA MLK Invitational venue |
| 100 Backstroke | SCY | 1:23.45 | BB+7.06s to A | 2026-01-31 | 2026 MR LIE Second Chance Invitational venue |
| 25 Breaststroke | SCY | 25.58 | 2023-01-01 | Sanction #: 231007 | |
| 50 Breaststroke | SCY | 39.06 | BB+0.07s to A | 2026-01-30 | 2026 MR LIE Second Chance Invitational |
| 100 Breaststroke | SCY | 1:25.41 | A+3.62s to AA | 2026-03-15 | 2026 MR SC Junior Metropolitan Championships venue |
| 200 Breaststroke | SCY | 3:05.64 | BB+1.05s to A | 2026-01-17 | 2026 MR AGUA MLK Invitational |
| 25 Butterfly | SCY | 28.03 | 2024-01-01 | Metropolitan 8 & Under Championships | |
| 50 Butterfly | SCY | 38.27 | B+2.18s to BB | 2026-03-08 | 2026 MR AGUA Last Chance Invitational venue |
| 100 Individual Medley | SCY | 1:18.24 | BB+2.25s to A | 2026-03-14 | 2026 MR SC Junior Metropolitan Championships venue |
| 200 Individual Medley | SCY | 2:45.38 | BB+0.19s to A | 2026-03-13 | 2026 MR SC Junior Metropolitan Championships venue |
| 400 Individual Medley | SCY | 6:05.41 | BB+12.12s to A | 2026-01-19 | 2026 MR AGUA MLK Invitational venue |
| 50 Freestyle | LCM | 35.80 | BB+1.01s to A | 2026-05-23 | 2026 MR AGUA Memorial Day Invitational fast pool |
| 100 Freestyle | LCM | 1:17.93 | BB+1.44s to A | 2026-05-17 | 2026 MR LIAC Spring Kickoff Invitational venue |
| 200 Freestyle | LCM | 2:46.22 | BB+0.83s to A | 2026-05-23 | 2026 MR AGUA Memorial Day Invitational fast pool |
| 50 Backstroke | LCM | 47.19 | +0.40s to B | 2026-05-24 | 2026 MR AGUA Memorial Day Invitational fast pool |
| 100 Backstroke | LCM | 2:00.86 | +15.07s to B | 2024-07-06 | 2024 MR QNS One More Chance LCM Invite |
| 200 Backstroke | LCM | 3:29.22 | B+4.43s to BB | 2026-05-24 | 2026 MR AGUA Memorial Day Invitational fast pool |
| 50 Breaststroke | LCM | 45.07 | BB+0.18s to A | 2026-05-16 | 2026 MR LIAC Spring Kickoff Invitational venue |
| 100 Breaststroke | LCM | 1:36.45 | A+1.96s to AA | 2026-05-17 | 2026 MR LIAC Spring Kickoff Invitational venue |
| 200 Breaststroke | LCM | 3:27.94 | A+3.95s to AA | 2026-05-24 | 2026 MR AGUA Memorial Day Invitational fast pool |
| 50 Butterfly | LCM | 44.69 | +1.10s to B | 2026-05-16 | 2026 MR LIAC Spring Kickoff Invitational venue |
| 200 Individual Medley | LCM | 4:00.89 | +20.30s to B | 2024-07-06 | 2024 MR QNS One More Chance LCM Invite venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.
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 | 31.22 | flying | 200 Free Relay (leg 3) | 2025-12-12 | 2025 Katie Ledecky Invitational |
| 100 Freestyle | SCY | 1:08.97 | flat | 400 Free Relay | 2025-12-13 | 2025 Katie Ledecky Invitational |
| 50 Breaststroke | SCY | 41.49 | flying | 200 Medley Relay (leg 2) | 2025-12-14 | 2025 Katie Ledecky Invitational |
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 11-12 · SCY
2245 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 500 FR SCY | 6:16.83 | 657 |
| 100 BK SCY | 1:23.45 | 423 |
| 100 BR SCY | 1:25.41 | 586 |
| 200 IM SCY | 2:45.38 | 579 |
| 100 FL SCY | — | 0 |
IMR 11-12 · SCY
2526 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:21.97 | 632 |
| 50 BK SCY | 40.49 | 370 |
| 50 BR SCY | 39.06 | 602 |
| 50 FL SCY | 38.27 | 378 |
| 100 IM SCY | 1:18.24 | 544 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:07.24
Front half 32.59s · back half 34.65s
200 Freestyle SCY 2:21.97
Front half 68.84s · back half 73.13s
500 Freestyle SCY 6:16.83
Front half 187.42s · back half 189.41s
100 Backstroke SCY 1:23.45
Front half 41.54s · back half 41.91s
100 Breaststroke SCY 1:25.41
Front half 40.26s · back half 45.15s
200 Breaststroke SCY 3:05.64
Front half 90.24s · back half 95.40s
100 Individual Medley SCY 1:18.24
Front half 37.97s · back half 40.27s
200 Individual Medley SCY 2:45.38
Front half 84.01s · back half 81.37s
400 Individual Medley SCY 6:05.41
Front half 191.25s · back half 174.16s
100 Freestyle LCM 1:17.93
Front half 37.65s · back half 40.28s
200 Freestyle LCM 2:46.22
Front half 82.17s · back half 84.05s
100 Backstroke LCM 2:00.86
Front half 62.35s · back half 58.51s
200 Backstroke LCM 3:29.22
Front half 107.05s · back half 102.17s
100 Breaststroke LCM 1:36.45
Front half 46.05s · back half 50.40s
200 Breaststroke LCM 3:27.94
Front half 103.79s · back half 104.15s
200 Individual Medley LCM 4:00.89
Front half 123.43s · back half 117.46s
Progression
Faster times are higher. One card per event, all courses & history.