Rivas, Oscar
Current rating: 1558
Record: 8-6-1
| Grand Prix Columbus 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 142 | Jacobson, Logan (1485) | Won 2-1 | +181518 |
| 2modern | 62 | Lee, Russell (1465) | Lost 0-2 | -191499 |
| 3modern | 238 | Davidson, Keenan (1571) | Won 2-1 | +191518 |
| 4modern | 93 | Kulp, Adam (1517) | Won 2-0 | +181536 |
| 5modern | 69 | Neal, Richard (1826) | Won 2-0 | +231559 |
| 6modern | 26 | Rood, David (1729) | Lost 1-2 | -151544 |
| 7modern | 120 | Cashen, Christopher (1537) | Won 2-0 | +181562 |
| 8modern | 41 | Martin, Bob (1683) | Won 2-1 | +201582 |
| 9modern | 35 | Kristoff, Daniel (1932) | Lost 1-2 | -121570 |
| 10modern | 214 | Litvak, Shayne (1581) | Lost 1-2 | -171553 |
| 11modern | 224 | Cole, Bryan (1634) | Lost 1-2 | -171536 |
| 12modern | 228 | Morgan, Isaac (1536) | Won 2-1 | +181554 |
| 13modern | 218 | Brumby, Gene (1592) | Lost 1-2 | -171537 |
| 14modern | 224 | Bianchi, Alex (1752) | Draw 1-1 | +41541 |
| 15modern | 225 | Wan, Tse Shuen (1530) | Won 2-0 | +171558 |
| average opponent: 1625record: 8-6-1 | new rating: 1558 | |||