swimIsaac Zhang
Personal records
| Event | Course | Best | Cut | Date | Meet |
|---|---|---|---|---|---|
| 50 Freestyle | SCY | 30.21 | A+0.22s to AA·+7.92s to Sectionals | 2026-02-20 | 2026 Gulf 12 & Under Championships |
| 100 Freestyle | SCY | 1:09.36 | A+2.17s to AA·+21.07s to Sectionals | 2025-12-05 | 2025 Gulf Age Group Championships |
| 200 Freestyle | SCY | 2:28.54 | A+3.15s to AA·+42.75s to Sectionals | 2026-02-20 | 2026 Gulf 12 & Under Championships |
| 500 Freestyle | SCY | 7:43.78 | B+9.69s to BB·+177.69s to Sectionals | 2024-11-10 | 2024 FCST Nov Tri-Meetvenue |
| 50 Backstroke | SCY | 37.54 | A+1.55s to AA·+11.85s to Sectionals | 2025-12-05 | 2025 Gulf Age Group Championships |
| 100 Backstroke | SCY | 1:16.64 | A+0.35s to AA·+21.55s to Sectionals | 2026-02-20 | 2026 Gulf 12 & Under Championships |
| 25 Breaststroke | SCY | 18.77 | 2024-09-21 | 2024 FCST Red v Blue Challengevenue | |
| 50 Breaststroke | SCY | 35.85 | AAAA·+6.36s to Sectionals | 2025-12-05 | 2025 Gulf Age Group Championships |
| 100 Breaststroke | SCY | 1:19.83 | AAA+0.14s to AAAA·+17.14s to Sectionals | 2025-12-05 | 2025 Gulf Age Group Championships |
| 25 Butterfly | SCY | 19.42 | 2024-09-22 | 2024 FCST Red v Blue Challengevenue | |
| 50 Butterfly | SCY | 37.45 | BB+1.36s to A·+13.16s to Sectionals | 2025-02-22 | MAC Hosted 2025 Gulf 12 & Under Champsvenue |
| 100 Butterfly | SCY | 1:28.11 | BB+3.52s to A·+35.42s to Sectionals | 2025-02-02 | 2025 Fleet Mardi Grasvenue |
| 100 Individual Medley | SCY | 1:18.30 | A+1.81s to AA | 2025-12-05 | 2025 Gulf Age Group Championships |
| 200 Individual Medley | SCY | 2:51.88 | A+5.99s to AA·+52.49s to Sectionals | 2025-12-05 | 2025 Gulf Age Group Championships |
| 50 Freestyle | LCM | 31.85 | AAA+0.16s to AAAA·+6.26s to Sectionals | 2026-07-26 | 2026 Texas Age Group Swimming LC Champsvenue |
| 100 Freestyle | LCM | 1:12.63 | AAA+2.84s to AAAA·+17.34s to Sectionals | 2026-05-15 | 2026 Fleet Summer Classic |
| 200 Freestyle | LCM | 2:36.43 | AAA+4.44s to AAAA·+35.54s to Sectionals | 2026-01-01 | FCST Summer Splash - FULL |
| 400 Freestyle | LCM | 5:47.78 | AA+11.19s to AAA·+88.69s to Sectionals | 2026-01-01 | FCST Summer Splash - FULL |
| 500 Freestyle | LCM | 10:42.00 | 2024-10-13 | Sharks Fall Open Water Extravaganza 2024venue | |
| 50 Backstroke | LCM | 38.89 | AAA+1.90s to AAAA·+8.70s to Sectionals | 2026-01-01 | FCST Summer Splash - FULL |
| 100 Backstroke | LCM | 1:25.04 | AA+0.95s to AAA·+20.55s to Sectionals | 2026-05-15 | 2026 Fleet Summer Classic |
| 50 Breaststroke | LCM | 39.69 | AAAA·+5.50s to Sectionals | 2026-07-24 | 2026 Texas Age Group Swimming LC Champsvenue |
| 100 Breaststroke | LCM | 1:27.33 | AAAA·+14.94s to Sectionals | 2026-07-25 | 2026 Texas Age Group Swimming LC Champsvenue |
| 50 Butterfly | LCM | 37.90 | AA+1.31s to AAA·+10.11s to Sectionals | 2026-01-01 | FCST Summer Splash - FULL |
| 100 Butterfly | LCM | 1:25.70 | AA+0.51s to AAA·+25.21s to Sectionals | 2026-01-01 | FCST Summer Splash - FULL |
| 200 Individual Medley | LCM | 2:58.61 | AAA+6.12s to AAAA·+40.92s to Sectionals | 2026-01-01 | FCST Summer Splash - FULL |
Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 10.
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.
Fastest relay legs
| Leg | Course | Time | Start | Relay | Date | Meet |
|---|---|---|---|---|---|---|
| 50 Freestyle | SCY | 34.42 | flat | 200 Free Relay | 2024-12-08 | 2024 Gulf Age Group Championships |
| 50 Freestyle | SCY | 32.69 | flying | 200 Free Relay (leg 4) | 2024-11-09 | 2024 FCST Nov Tri-Meet |
| 50 Breaststroke | SCY | 38.70 | flying | 200 Medley Relay (leg 2) | 2024-12-07 | 2024 Gulf Age Group Championships |
| 50 Freestyle | LCM | 34.56 | flat | 200 Free Relay | 2025-07-20 | 2025 Texas Age Group Championships |
| 50 Freestyle | LCM | 31.42 | flying | 200 Free Relay (leg 2) | 2026-07-26 | 2026 Texas Age Group Swimming LC Champs |
| 100 Freestyle | LCM | 1:12.25 | flying | 400 Free Relay (leg 2) | 2026-07-24 | 2026 Texas Age Group Swimming LC Champs |
| 50 Breaststroke | LCM | 39.41 | flying | 200 Medley Relay (leg 2) | 2026-07-25 | 2026 Texas Age Group Swimming LC Champs |
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 · LCM
4539 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 200 FR LCM | 2:36.43 | 911 |
| 100 BK LCM | 1:25.04 | 832 |
| 100 BR LCM | 1:27.33 | 1100 |
| 100 FL LCM | 1:25.70 | 801 |
| 200 IM LCM | 2:58.61 | 895 |
IMR 10 & under · LCM
4508 points (5/5 events)
| Event | Time | Points |
|---|---|---|
| 100 FR LCM | 1:12.63 | 887 |
| 50 BK LCM | 38.89 | 860 |
| 50 BR LCM | 39.69 | 1100 |
| 50 FL LCM | 37.90 | 766 |
| 200 IM LCM | 2:58.61 | 895 |
Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.
PR splits
500 Freestyle SCY 7:43.78
Front half 225.85s · back half 237.93s
100 Butterfly SCY 1:28.11
Front half 41.17s · back half 46.94s
100 Breaststroke LCM 1:27.33
Front half 41.85s · back half 45.48s
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.