Charlotte Guo
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 25 Freestyle | SCY | 20.64 | 2024-11-16 | 2024 NE SAC Turkey Splash venue | |
| 50 Freestyle | SCY | 37.24 | B+1.15s to BB | 2026-03-14 | 2026 Shawmut NE Cup Championship venue |
| 100 Freestyle | SCY | 1:29.11 | B+7.92s to BB | 2026-01-04 | 2026 NE INST-ABF Blizzard Classic venue |
| 200 Freestyle | SCY | 3:08.42 | B+7.83s to BB | 2026-03-14 | 2026 Shawmut NE Cup Championship venue |
| 50 Backstroke | SCY | 42.58 | BB+4.59s to A | 2026-01-31 | 2026 NE GS Silver Championships fast pool |
| 100 Backstroke | SCY | 1:35.48 | B+1.49s to BB | 2026-01-16 | 2026 NE SAC Bronze Championships |
| 25 Breaststroke | SCY | 22.84 | 2026-03-14 | 2026 Shawmut NE Cup Championship venue | |
| 50 Breaststroke | SCY | 50.69 | B+2.00s to BB | 2026-01-16 | 2026 NE SAC Bronze Championships |
| 100 Breaststroke | SCY | 1:46.27 | BB+12.68s to A | 2026-01-31 | 2026 NE GS Silver Championships fast pool |
| 25 Butterfly | SCY | 20.48 | 2025-11-15 | 2025 NE SAC Turkey Splash venue | |
| 50 Butterfly | SCY | 43.95 | B+1.26s to BB | 2025-12-14 | 2025 NE SHAWMUT Candy Cane Classic venue |
| 100 Individual Medley | SCY | 1:40.33 | B+6.54s to BB | 2026-01-04 | 2026 NE INST-ABF Blizzard Classic venue |
| 50 Freestyle | LCM | 46.60 | +1.21s to B | 2025-05-17 | 2025 NE SAC May Madness venue |
| 100 Freestyle | LCM | 1:24.82 | BB+2.83s to A | 2026-06-05 | 2026 NE SAC America's Cup - copied venue |
| 200 Freestyle | LCM | 4:36.44 | +45.45s to B | 2025-05-17 | 2025 NE SAC May Madness venue |
| 50 Backstroke | LCM | 55.71 | B+6.02s to BB | 2025-05-18 | 2025 NE SAC May Madness venue |
| 50 Breaststroke | LCM | 1:05.53 | +3.34s to B | 2025-01-01 | 2025 ne cs silver championship results |
| 100 Breaststroke | LCM | 2:19.25 | B+15.26s to BB | 2025-01-01 | 2025 ne cs silver championship results |
| 200 Breaststroke | LCM | 4:23.60 | 2026-06-05 | 2026 NE SAC America's Cup - copied venue |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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 | 34.58 | flying | 200 Free Relay (leg 2) | 2026-03-14 | 2026 Shawmut NE Cup Championship |
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 10 & under · SCY
1210 points (3/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 3:08.42 | 377 |
| 100 BK SCY | 1:35.48 | 404 |
| 100 BR SCY | 1:46.27 | 429 |
| 100 FL SCY | — | 0 |
| 200 IM SCY | — | 0 |
IMR 10 & under · SCY
1880 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR SCY | 1:29.11 | 333 |
| 50 BK SCY | 42.58 | 448 |
| 50 BR SCY | 50.69 | 385 |
| 50 FL SCY | 43.95 | 360 |
| 100 IM SCY | 1:40.33 | 354 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 1:29.11
Front half 41.61s · back half 47.50s
200 Freestyle SCY 3:08.42
Front half 91.14s · back half 97.28s
100 Backstroke SCY 1:35.48 split/total mismatch
Front half 46.69s · back half 48.79s
100 Breaststroke SCY 1:46.27
Front half 51.79s · back half 54.48s
100 Individual Medley SCY 1:40.33
Front half 48.70s · back half 51.63s
200 Freestyle LCM 4:36.44
Front half 134.68s · back half 141.76s
100 Breaststroke LCM 2:19.25 split/total mismatch
Front half 67.07s · back half 72.18s
200 Breaststroke LCM 4:23.60
Front half 129.30s · back half 134.30s
Progression
Faster times are higher. One card per event, all courses & history.