Ritchie, John
Current rating: 1504
Record: 15-15-1
| MagicCon Las Vegas 2023 Limited Open (WOE limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3220 | Sherman, Sam (1854) | Lost 0-2 | -131524 |
| 2sealed | 3592 | Cade, Chris (1467) | Won 2-0 | +171541 |
| 3sealed | 3538 | Buck, Robert (1503) | Lost 0-2 | -181523 |
| 4sealed | 3536 | Hewitt, Chris (1509) | Lost 0-2 | -191504 |
| top | average opponent: 1583record: 1-3 | new rating: 1504 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 633 | Hibbs, David (1618) | Lost 1-2 | -171523 |
| 2sealed | 843 | Colgan, Matt (1540) | Won 2-0 | +191542 |
| 3sealed | 822 | Keene, Nathan (1519) | Lost 1-2 | -191523 |
| 4sealed | 876 | Beneke, Lucas (1482) | Won 2-1 | +171540 |
| 5sealed | 550 | Henderson, Craig (1465) | Won 2-0 | +171557 |
| 6sealed | 530 | Strader, Seth (1539) | Won 2-0 | +181575 |
| 7sealed | 316 | Viviano, Michael (1546) | Lost 1-2 | -191556 |
| 8sealed | 518 | Osuna, Eduardo (1482) | Lost 1-2 | -191537 |
| top | average opponent: 1524record: 4-4 | new rating: 1537 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 50 | Toon, Brian (1471) | Won 2-1 | +171542 |
| 2sealed | 120 | Boyko, Andrew (1518) | Lost 0-2 | -191523 |
| 3sealed | 237 | Dilts, Matthew (1590) | Won 2-1 | +191542 |
| 4sealed | 161 | Mohon, Nick (1502) | Won 2-1 | +181560 |
| 5sealed | 59 | Stanbury, Cory (1522) | Lost 1-2 | -191541 |
| 6sealed | 103 | Rose, Bradley (1528) | Won 2-0 | +181559 |
| 7sealed | 81 | Austria, Alfred (1504) | Lost 1-2 | -191540 |
| top | average opponent: 1519record: 4-3 | new rating: 1540 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1185 | Barber, Matthew (1465) | Won 2-0 | +171538 |
| 2sealed | 1042 | Babb, Kevin (1527) | Won 2-1 | +181556 |
| 3sealed | 1216 | Feng, Hans (1670) | Won 2-1 | +201576 |
| 4sealed | 1091 | Mourssali, Riad (1701) | Lost 0-2 | -161560 |
| 5sealed | 975 | Leite Araujo, Joao Paulo (1688) | Draw 1-1 | +31563 |
| 6sealed | 797 | Lawson, Christopher (1534) | Lost 0-2 | -191544 |
| 7sealed | 696 | Lemly, Harry (1467) | Lost 0-2 | -191525 |
| top | average opponent: 1579record: 3-3-1 | new rating: 1525 | ||
| Grand Prix Las Vegas 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 56 | Lane, Adam E (1554) | Lost 1-2 | -171483 |
| 3extended | 112 | Awtrey, Kevin (1501) | Won 2-1 | +181501 |
| 4extended | 117 | Girard, Michael (1553) | Lost 1-2 | -171484 |
| 5extended | 154 | Vannelli, Daniel (1499) | Won 2-0 | +191503 |
| 6extended | 105 | Vangor-Toth, Barron (1538) | Won 2-1 | +181521 |
| top | average opponent: 1529record: 3-2 | new rating: 1521 | ||