Scamihorn, John
Current rating: 1614
Record: 30-24-3
| Grand Prix Indianapolis 2017 (HOU limited) | starting rating: 1657 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 204 | Anderson, Luke (1428) | Lost 0-2 | -221635 |
| 2sealed | 406 | Rice, Jason (1452) | Lost 0-2 | -211614 |
| top | average opponent: 1440record: 0-2 | new rating: 1614 | ||
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 422 | Carey, Matthew (1500) | Won 2-0 | +181525 |
| 2sealed | 4 | Chu, Canaan (1518) | Won 2-0 | +171542 |
| 3sealed | 282 | Vogt, Bradley (1602) | Won 2-1 | +191561 |
| 4sealed | 99 | Tan, Richard (2033) | Lost 1-2 | -101551 |
| 5sealed | 147 | Warrington, Troy (1488) | Won 2-0 | +171568 |
| 6sealed | 97 | Boudreault, Damien (1695) | Lost 1-2 | -151553 |
| 7sealed | 238 | Casselman, Christopher (1582) | Won 2-1 | +181571 |
| 8sealed | 145 | Pascal, Brandon (1795) | Won 2-0 | +221593 |
| 9sealed | 73 | Zink, Leighton (1587) | Won 2-0 | +181611 |
| 10draft | 18 | Pinsky, Matt (1732) | Won 2-0 | +201631 |
| 11draft | 124 | Nogueira, Dustyn (1687) | Won 2-1 | +191650 |
| 12draft | 137 | Lu, Jiekun (1714) | Won 2-0 | +191669 |
| 13draft | 5 | Hare, Ryan (1813) | Won 2-1 | +211690 |
| 14draft | 62 | Ross-Latour, Jeremie (1836) | Lost 0-2 | -151675 |
| 15draft | 55 | Machado, Fernando (1691) | Lost 0-2 | -181657 |
| top | average opponent: 1685record: 11-4 | new rating: 1657 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 639 | Rodriguez, Juan (1638) | Won 2-0 | +211503 |
| 2sealed | 351 | Thor, Christopher (1534) | Lost 0-2 | -181485 |
| 3sealed | 815 | Lee, Farand (1622) | Won 2-1 | +211506 |
| 4sealed | 537 | Gwizdala, Ryan (1519) | Won 2-1 | +181524 |
| 5sealed | 491 | MacLeod, Joshua (1532) | Won 1-0 | +181542 |
| 6sealed | 109 | Desangles, Anthony (1616) | Lost 0-2 | -161526 |
| 7sealed | 354 | Tam, Keaton (1480) | Won 2-1 | +171543 |
| 8sealed | 242 | Satou, Fumihiko (1512) | Lost 0-2 | -191524 |
| 9sealed | 397 | Andresen, Daniel (1545) | Lost 0-2 | -171507 |
| top | average opponent: 1555record: 5-4 | new rating: 1507 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 15 | Ganapathy, Ananthakrishnan (1474) | Lost 0-2 | -201519 |
| 2modern | 774 | Hearty, Kyle (1483) | Lost 0-2 | -181501 |
| 3modern | 1189 | Yan, Kenneth (1464) | Lost 0-2 | -191482 |
| top | average opponent: 1473record: 0-3 | new rating: 1482 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 68 | Lopez, Zack (1507) | Won 2-1 | +181523 |
| 2sealed | 128 | Strausman, Shea (1510) | Draw 1-1 | 01523 |
| 3sealed | 186 | Stanwood, Stephen (1518) | Won 1-0 | +181541 |
| 4sealed | 93 | Freeman, Joseph (1427) | Lost 1-2 | -201521 |
| 5sealed | 272 | Bancheri, Aaron (1502) | Won 2-1 | +171538 |
| 6sealed | 117 | Sowar, Joseph (1573) | Won 2-1 | +191557 |
| 7sealed | 72 | Wadolowski, Thomas (1518) | Draw 1-1 | -11556 |
| 8sealed | 115 | Hanson, William (1570) | Lost 0-2 | -171539 |
| top | average opponent: 1516record: 4-2-2 | new rating: 1539 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 368 | Jung, Sang (1481) | Lost 1-2 | -191545 |
| 2legacy | 457 | Hughes, Scott (1482) | Lost 0-2 | -201525 |
| 3legacy | 483 | Bowen, Leonard (1397) | Lost 0-2 | -201505 |
| top | average opponent: 1453record: 0-3 | new rating: 1505 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 235 | Mc Murray, Richard (1500) | Draw 1-1 | -11552 |
| 2sealed | 300 | Tappan, Cody (1500) | Won 2-0 | +171569 |
| 3sealed | 195 | Blume, Andrew (1520) | Lost 0-2 | -191550 |
| 4sealed | 340 | Canales, Jorge (1501) | Lost 1-2 | -191531 |
| 5sealed | 374 | Hochman, Ryan (1465) | Won 2-0 | +171548 |
| 6sealed | 290 | Blanchard, Michael (1484) | Won 2-1 | +171565 |
| 7sealed | 221 | Fontanez, Julio (1562) | Won 2-0 | +181583 |
| 8sealed | 154 | Goracke, Matthew (1554) | Lost 0-2 | -191564 |
| top | average opponent: 1511record: 4-3-1 | new rating: 1564 | ||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 35 | Carp, Benjamin D (1500) | Lost 0-2 | -181482 |
| 2legacy | 348 | Mauer, Joseph (1482) | Won 2-1 | +181500 |
| 3legacy | 292 | Cox, Adam (1486) | Lost 0-2 | -181482 |
| 4legacy | 374 | Le, Michael (1437) | Won 2-1 | +171499 |
| 5legacy | 282 | Mitchell, Ed (1501) | Won 2-1 | +181517 |
| 6legacy | 211 | Trostle, Nehemiah A (1519) | Won 2-1 | +181535 |
| 7legacy | 149 | LeBrun, Keith W (1541) | Lost 0-2 | -181517 |
| 8legacy | 160 | Wash, William (1539) | Won 2-0 | +191536 |
| 9legacy | 120 | Turk, Adam (1494) | Won 2-0 | +171553 |
| top | average opponent: 1500record: 6-3 | new rating: 1553 | ||