Olson, Josh
Current rating: 1548
Record: 15-12
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 191 | Santos, Juan Miguel (1500) | Lost 0-1 | -191533 |
| 2sealed | 420 | Booker, Paul (1464) | Won 2-1 | +171550 |
| 3sealed | 372 | Wong, Oliver (1500) | Won 2-1 | +171567 |
| 4sealed | 252 | Bezerra-Clark, Christopher (1527) | Lost 1-2 | -191548 |
| top | average opponent: 1498record: 2-2 | new rating: 1548 | ||
| Grand Prix Kansas City 2008 (ALA limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 138 | Sobel, Willi L (1500) | Won 2-0 | +171538 |
| 2sealed | 20 | Orsi, Tony (1433) | Won 2-0 | +161554 |
| 3sealed | 23 | Rogers, Christopher (1538) | Lost 0-2 | -181536 |
| 4sealed | 214 | Rader, Matt (1475) | Won 2-0 | +171553 |
| 5sealed | 137 | Crites, Timothy D (1536) | Won 2-1 | +181571 |
| 6sealed | 89 | McCall, Brian (1525) | Lost 1-2 | -191552 |
| 7sealed | 128 | Saunders, David (1536) | Won 2-1 | +171569 |
| 8sealed | 101 | Melnikow, Alex (1615) | Lost 0-2 | -171552 |
| top | average opponent: 1520record: 5-3 | new rating: 1552 | ||
| Grand Prix St. Louis 2006 (CSP limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 4 | Steiglitz, Barry (1483) | Won 2-1 | +171559 |
| 3sealed | 7 | Mooney, Clayton (1536) | Lost 1-2 | -191540 |
| 4sealed | 86 | Warr, Clement (1541) | Won 2-1 | +181558 |
| 5sealed | 55 | Boss, Brian (1535) | Lost 1-2 | -181540 |
| 6sealed | 107 | Doll, Trevor J (1467) | Lost 1-2 | -191521 |
| top | average opponent: 1512record: 2-3 | new rating: 1521 | ||
| Grand Prix Kansas City 2003 (MRD limited) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 30 | Kissee, Coy (1500) | Won 2-1 | +181503 |
| 3sealed | 45 | Bright, Jeremy (1474) | Won 2-0 | +181521 |
| 4sealed | 25 | Eardley, John (1572) | Lost 0-2 | -171504 |
| 5sealed | 78 | Wichert, Kelly (1508) | Won 2-0 | +181522 |
| 6sealed | 25 | Swierczek, Justin (1554) | Lost 1-2 | -181504 |
| 7sealed | 87 | Churchill, Michael (1545) | Won 2-1 | +191523 |
| 8sealed | 34 | Bates, Daniel J (1554) | Won 2-0 | +191542 |
| top | average opponent: 1530record: 5-2 | new rating: 1542 | ||
| Grand Prix Houston 2002 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 42 | Branum, Justin (1500) | Won 2-0 | +181518 |
| 2extended | 48 | Lane, Adam E (1696) | Lost 1-2 | -151503 |
| 3extended | 45 | Jowers, Chris (1500) | Lost 0-2 | -181485 |
| top | average opponent: 1565record: 1-2 | new rating: 1485 | ||