Delbert, Matthew
Current rating: 1640
Record: 14-6
| Grand Prix Austin 2020 (modern) | starting rating: 1674 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 123 | He, Steven (1481) | Lost 1-2 | -221652 |
| 2modern | 284 | Hardwick, Charissa (1529) | Won 2-1 | +161668 |
| 3modern | 209 | Ohannessian, Ivan (1503) | Lost 0-2 | -211647 |
| 4modern | 337 | Dominguez, David (1443) | Won 2-1 | +141661 |
| 5modern | 271 | Lucas, Nicholas (1477) | Lost 1-2 | -211640 |
| average opponent: 1486record: 2-3 | new rating: 1640 | |||
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 176 | Bertelsman, Jon (1500) | Lost 1-2 | -181482 |
| 2modern | 435 | Harris, Michael (1364) | Won 2-1 | +161498 |
| 3modern | 441 | Vann, Bryan (1503) | Won 2-1 | +181516 |
| 4modern | 190 | Stokes, James (1633) | Lost 0-2 | -161500 |
| 5modern | 330 | Harrington, Chase (1503) | Won 2-0 | +181518 |
| 6modern | 170 | Hopkins, Mikey (1502) | Won 2-1 | +181536 |
| 7modern | 140 | Chandler, Samuel (1493) | Won 2-1 | +171553 |
| 8modern | 114 | Wells, Brian [USA] (1795) | Won 2-1 | +221575 |
| 9modern | 71 | Bryant, Jason (1685) | Won 2-0 | +201595 |
| 10modern | 65 | Thorne, Ian (1585) | Lost 0-2 | -181577 |
| 11modern | 62 | Wade, Justin (1615) | Won 2-0 | +191596 |
| 12modern | 54 | Olsen, Christopher (1627) | Won 2-0 | +181614 |
| 13modern | 38 | Heine, Brian (1888) | Won 2-1 | +231637 |
| 14modern | 18 | Johnson, KC (1682) | Won 2-1 | +191656 |
| 15modern | 20 | Phillips, Joshua 6281 (1627) | Won 2-1 | +181674 |
| average opponent: 1600record: 12-3 | new rating: 1674 | |||