O'Brien, Nathan
Current rating: 1516
Record: 4-3
| Grand Prix Providence 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 42 | Geyer, Michael (1500) | Won 2-1 | +181518 |
| 2standard | 87 | Gee, Wesley (1518) | Won 2-0 | +181536 |
| 3standard | 132 | Sauls, Kevin (1538) | Lost 0-2 | -181518 |
| 4standard | 140 | Corpora, Jon (1452) | Won 2-0 | +171535 |
| 5standard | 127 | Fontes, Carlos (1474) | Lost 0-2 | -191516 |
| 6standard | 207 | Josephson, Edward (1517) | Won 2-0 | +181534 |
| 7standard | 170 | Hollenbeck, Luke (1541) | Lost 1-2 | -181516 |
| average opponent: 1506record: 4-3 | new rating: 1516 | |||