Siemens, Brian
Current rating: 1538
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 194 | Mendelsohn, Max (1500) | Won 2-0 | +171532 |
| 2sealed | 63 | Leung, Edman (1742) | Won 2-0 | +221554 |
| 3sealed | 126 | Groh, Daniel (1500) | Won 2-1 | +171571 |
| 4sealed | 71 | Harabas, Chris (1462) | Won 2-0 | +161587 |
| 5sealed | 4 | Hardin, Jeffrey (1586) | Lost 1-2 | -181569 |
| 6sealed | 58 | Maginnis, Peter (1892) | Lost 1-2 | -121557 |
| 7sealed | 109 | Zilinski, Dylan (1512) | Lost 0-2 | -191538 |
| top | average opponent: 1599record: 4-3 | new rating: 1538 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 659 | Yin, Kitty (1480) | Won 2-1 | +181517 |
| 2sealed | 511 | Skonnord, Ryan (1518) | Lost 0-2 | -181499 |
| 3sealed | 710 | Baker, Nick (1431) | Won 2-1 | +161515 |
| 4sealed | 697 | Anderson, Andrew (1488) | Lost 1-2 | -181497 |
| 5sealed | 486 | Kondo, Hirotsugu (1393) | Won 2-1 | +161513 |
| 6sealed | 603 | Salts, Matt (1519) | Won 2-1 | +181531 |
| 7sealed | 363 | Barnes, Joel 2 (1622) | Lost 1-2 | -161515 |
| top | average opponent: 1493record: 4-3 | new rating: 1515 | ||
| Grand Prix San Diego 2011 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 416 | Jordan, David (1500) | Won 2-1 | +181518 |
| 2sealed | 484 | Stafford, Andrew (1500) | Lost 0-2 | -181500 |
| 3sealed | 535 | Jenkins, Mark (1504) | Won 2-0 | +181518 |
| 4sealed | 551 | Pusateri, Eric (1514) | Won 2-0 | +181536 |
| 5sealed | 448 | Arce, Aaron (1459) | Lost 1-2 | -201516 |
| 6sealed | 508 | Oakes, Connor (1537) | Won 2-0 | +191535 |
| 7sealed | 498 | Horne, Matt (1544) | Lost 0-2 | -181517 |
| 8sealed | 498 | Moline, David (1517) | Lost 0-2 | -181499 |
| top | average opponent: 1509record: 4-4 | new rating: 1499 | ||