Douglas Kallin vs John Combs
Douglas Kallin and John Combs have met 2 times in recorded professional competition. John Combs leads the series 2–0.
| Year | Result | Method | Event |
|---|---|---|---|
| 2018 | John Combs | Arm in guillotine | LA Open |
| 2018 | John Combs | Arm-In Guillotine | IBJJF Los Angeles Open |