Peterson, Jacob
Current rating: 1639
Record: 20-11-2
| Grand Prix Portland 2018 (modern) | starting rating: 1608 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 439 | Griswold, Lucas (1510) | Lost 0-2 | -201588 |
| 2modern | 593 | Vervalin, Bryce (1564) | Won 2-1 | +181606 |
| 3modern | 478 | Mounts, Adam (1522) | Won 2-0 | +161622 |
| 4modern | 509 | Mischke, Paul (1520) | Won 2-0 | +161638 |
| 5modern | 331 | Friedman, Ben (2026) | Lost 0-2 | -111627 |
| 6modern | 471 | Maguire, Wesley (1518) | Won 2-1 | +161643 |
| 7modern | 312 | Plumb, Elliott (1532) | Lost 1-2 | -201623 |
| 8modern | 346 | Spriggs, Weston (1518) | Won 2-1 | +161639 |
| top | average opponent: 1589record: 5-3 | new rating: 1639 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2123 | Peniche, Gonzalo (1500) | Lost 0-2 | -201590 |
| 2modern | 906 | Everest, Brent (1400) | Lost 0-2 | -221568 |
| 3modern | 1360 | Cook, Brandon (1425) | Draw 1-1 | -21566 |
| 4modern | 1389 | Claridge, Anthony (1463) | Won 2-0 | +161582 |
| 5modern | 1188 | Gossard, Nathan (1501) | Won 2-0 | +161598 |
| 6modern | 941 | Marin, Isaac (1411) | Won 2-0 | +151613 |
| 7modern | 2142 | Zuniga, Michael (1482) | Won 2-0 | +151628 |
| 8modern | 497 | Baker, Kazi (1493) | Lost 1-2 | -201608 |
| top | average opponent: 1459record: 4-3-1 | new rating: 1608 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1577 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 242 | Becker, Joshua (1483) | Won 2-0 | +171594 |
| 2sealed | 83 | Chan, Andy (1673) | Won 2-1 | +191613 |
| 3sealed | 205 | Chieng, Philip (1557) | Won 2-1 | +171630 |
| 4sealed | 45 | Nelson, Jeremiah (1564) | Lost 0-2 | -191611 |
| 5sealed | 75 | Nemeth, Mark (1607) | Won 2-0 | +181629 |
| 6sealed | 59 | Leach, Philip (1554) | Won 2-1 | +161645 |
| 7sealed | 82 | Mathewson, Scott (1574) | Lost 0-2 | -191626 |
| 8sealed | 141 | Bonilla, Sergio (1703) | Lost 0-2 | -161610 |
| top | average opponent: 1589record: 5-3 | new rating: 1610 | ||
| Grand Prix Seattle-Tacoma 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 49 | Weiner, Andrew (1468) | Draw 1-1 | -11499 |
| 2sealed | 307 | Cook, Jody (1500) | Won 2-0 | +181517 |
| 3sealed | 203 | Kiene, Thomas (1729) | Won 2-1 | +221539 |
| 4sealed | 156 | gammon, drew (1534) | Won 2-0 | +181557 |
| 5sealed | 80 | Searles, James (1457) | Won 2-0 | +161573 |
| 6sealed | 39 | Vernescu, Victor (1571) | Won 2-1 | +181591 |
| 7sealed | 20 | Dembinski, Kyle (1773) | Lost 0-2 | -141577 |
| 8sealed | 66 | Drouyn-Rivera, Ricardo (1570) | Won 2-1 | +171594 |
| 9sealed | 38 | Kaff, Skye (1644) | Lost 0-2 | -171577 |
| top | average opponent: 1583record: 6-2-1 | new rating: 1577 | ||