Karan Vishwanathan has 2 recorded races from San Francisco, California, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-07-25 | San Francisco Marathon 2nd HALF MARATHON / CITY HALF | Half Marathon | 2:23:10 | 2412 |
| 2026-02-21 | SBI Green Marathon S6 - Mumbai 10 Km Run | 10K | 1:19:28 | 816 |