swimEma Cheng-Tanaka
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 26.46 | A+0.37s to AA·+1.17s to Sectionals | 2025-07-20 | 2025 ISI Summer HPAC Regionalvenue |
| 100 Freestyle | SCY | 57.03 | A+0.44s to AA·+2.54s to Sectionals | 2026-07-18 | 2026 ISI Summer HPAC Regionalvenue |
| 200 Freestyle | SCY | 2:01.48 | AA+4.49s to AAA·+3.59s to Sectionals | 2026-07-19 | 2026 ISI Summer HPAC Regionalvenue |
| 50 Backstroke | SCY | 29.65 | A+0.76s to AA·+2.36s to Sectionals | 2024-11-22 | 2024 Speedo Grand Chalengevenue |
| 100 Backstroke | SCY | 1:01.23 | A+0.04s to AA·+0.74s to Sectionals | 2025-07-20 | 2025 ISI Summer HPAC Regionalvenue |
| 200 Backstroke | SCY | 2:12.13 | AA+5.14s to AAA·+0.64s to Sectionals | 2026-02-28 | 2026 Winter ISI Regionals- PACvenue |
| 50 Butterfly | SCY | 29.26 | A+0.67s to AA·+2.57s to Sectionals | 2024-11-23 | 2024 Speedo Grand Chalengevenue |
| 100 Butterfly | SCY | 1:02.20 | A+1.31s to AA·+2.61s to Sectionals | 2025-07-19 | 2025 ISI Summer HPAC Regionalvenue |
| 200 Individual Medley | SCY | 2:17.09 | A+0.60s to AA·+4.10s to Sectionals | 2025-07-19 | 2025 ISI Summer HPAC Regionalvenue |
| 400 Individual Medley | SCY | 4:46.66 | AA+8.47s to AAA·+2.67s to Sectionals | 2025-07-18 | 2025 ISI Summer HPAC Regionalvenue |
| 50 Freestyle | LCM | 42.49 | +6.40s to B·+13.70s to Sectionals | 2017-06-11 | 2025 Central Zone 14 & Under Championship Meefast pool |
| 100 Freestyle | LCM | 1:38.29 | +20.00s to B·+36.50s to Sectionals | 2017-06-10 | 2025 Central Zone 14 & Under Championship Meefast pool |
| 50 Backstroke | LCM | 54.59 | +13.20s to B·+23.10s to Sectionals | 2017-06-10 | 2025 Central Zone 14 & Under Championship Meefast pool |
| 100 Backstroke | LCM | 1:15.79 | BB+1.20s to A·+5.30s to Sectionals | 2021-08-07 | 2025 Central Zone 14 & Under Championship Meevenue |
| 50 Breaststroke | LCM | 1:03.09 | +16.80s to B·+27.50s to Sectionals | 2017-06-11 | 2025 Central Zone 14 & Under Championship Meefast pool |
| 100 Breaststroke | LCM | 2:10.73 | +32.44s to B·+50.74s to Sectionals | 2017-06-10 | 2025 Central Zone 14 & Under Championship Meefast pool |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.
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 | 25.65 | flying | 200 Free Relay (leg 2) | 2025-07-20 | 2025 ISI Summer HPAC Regional |
| 100 Freestyle | SCY | 56.82 | flying | 400 Free Relay (leg 3) | 2024-03-10 | 2024 IL Swimming SC Age Group Championships |
| 200 Freestyle | SCY | 2:07.22 | flying | 800 Free Relay (leg 4) | 2024-03-08 | 2024 IL Swimming SC Age Group Championships |
| 50 Backstroke | SCY | 29.09 | flat | 200 Medley Relay | 2025-07-19 | 2025 ISI Summer HPAC Regional |
| 100 Backstroke | SCY | 1:02.44 | flat | 400 Medley Relay | 2024-03-09 | 2024 IL Swimming SC Age Group Championships |
| 50 Breaststroke | SCY | 34.26 | flying | 200 Medley Relay (leg 2) | 2026-02-28 | 2026 Winter ISI Regionals- PAC |
| 50 Freestyle | LCM | 34.66 | flying | 200 Free Relay (leg 4) | 2017-06-10 | 2025 Central Zone 14 & Under Championship Mee |
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
2220 points (3/6 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 BK SCY | 2:12.13 | 732 |
| 200 IM SCY | 2:17.09 | 716 |
| 400 IM SCY | 4:46.66 | 772 |
| 500 FR SCY | — | 0 |
| 200 BR SCY | — | 0 |
| 200 FL SCY | — | 0 |
IMR 17-18 · SCY
2888 points (4/5 events — incomplete)
| Event | Time | Points |
|---|---|---|
| 200 FR SCY | 2:01.48 | 750 |
| 100 BK SCY | 1:01.23 | 724 |
| 100 FL SCY | 1:02.20 | 698 |
| 200 IM SCY | 2:17.09 | 716 |
| 100 BR SCY | — | 0 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
100 Freestyle SCY 57.03
Front half 27.51s · back half 29.52s
200 Freestyle SCY 2:01.48
Front half 59.01s · back half 62.47s
100 Backstroke SCY 1:01.23
Front half 29.92s · back half 31.31s
200 Backstroke SCY 2:12.13
Front half 64.01s · back half 68.12s
100 Butterfly SCY 1:02.20
Front half 28.76s · back half 33.44s
200 Individual Medley SCY 2:17.09
Front half 64.76s · back half 72.33s
400 Individual Medley SCY 4:46.66
Front half 137.75s · back half 148.91s
100 Freestyle LCM 1:38.29
Front half 47.07s · back half 51.22s
100 Backstroke LCM 1:15.79 RT 0.63s
Front half 36.68s · back half 39.11s
100 Breaststroke LCM 2:10.73
Front half 63.89s · back half 66.84s
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.