John Konstantinidis games refereed
| date | competition | season | team | score | team | venue | attendance | sources |
|---|---|---|---|---|---|---|---|---|
| Aug. 7, 2002 | WUSA | 2002 | Carolina Courage | 2 - 1 | New York Power | Mitchel Athletic Complex | 8312 | 3 |
| July 13, 2002 | WUSA | 2002 | Atlanta Beat | 4 - 1 | New York Power | Mitchel Athletic Complex | 5128 | 3 |
| June 12, 2002 | USOC | 2002 | AAC Eagles | 0 - 1 | New York Freedom | St. John's University, Queens, NY | — | 1 |
| June 22, 2001 | WUSA | 2001 | Boston Breakers | 1 - 3 | New York Power | Mitchel Athletic Complex | 5056 | 2 |
| May 13, 2001 | WUSA | 2001 | New York Power | 2 - 2 | Philadelphia Charge | Mitchel Athletic Complex | 2348 | 2 |
| April 28, 2001 | USL1 | 2001 | Long Island Rough Riders | 3 - 2 | Minnesota Thunder | South Huntington, NY | 1053 | 1 |
| June 23, 1999 | USOC | 1999 | Staten Island Vipers | 7 - 0 | United German Hungarians | Bruce Hansen Memorial Field | 363 | 2 |