Simons, Jeffrey
Current rating: 1485
Record: 4-5
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 488 | Guillen, Edward (1500) | Won 2-1 | +181518 |
| 2modern | 286 | Davis, Brian [USA] (1500) | Won 2-1 | +181536 |
| 3modern | 249 | Masters, Chase (1770) | Lost 0-2 | -141522 |
| 4modern | 156 | Ralston, Caleb (1381) | Lost 0-2 | -211501 |
| 5modern | 290 | Chapman, Michael (1570) | Lost 1-2 | -161485 |
| 6modern | 485 | Padon, Logan (1460) | Won 2-0 | +171502 |
| 7modern | 377 | Holder, Colton (1500) | Won 2-1 | +181520 |
| 8modern | 288 | Capriolo, Paul (1537) | Lost 0-2 | -181502 |
| 9modern | 316 | Channic, Peter (1526) | Lost 1-2 | -171485 |
| average opponent: 1527record: 4-5 | new rating: 1485 | |||