Poonsombat, Nirut
Current rating: 1543
Record: 12-10-1
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 58 | Pajela, Dudley (1500) | Won 2-0 | +181524 |
| 2sealed | 85 | Ingraham, Chase (1519) | Won 2-1 | +181542 |
| 3sealed | 227 | Melnick, Michael (1589) | Won 2-1 | +191561 |
| 4sealed | 23 | Theriault, Madison (1594) | Lost 1-2 | -181543 |
| top | average opponent: 1551record: 3-1 | new rating: 1543 | ||
| Grand Prix Los Angeles 2014 (KTK standard) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 202 | Gaines, Tyler Jo (1518) | Lost 0-2 | -181526 |
| 2standard | 688 | Freytag, Eric (1619) | Won 2-1 | +191545 |
| 3standard | 444 | Brown, Matt [USA] (1413) | Lost 1-2 | -201525 |
| 4standard | 673 | Huang, George (1482) | Lost 0-2 | -191506 |
| top | average opponent: 1508record: 1-3 | new rating: 1506 | ||
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1565 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 183 | Feltman, Jason S (1464) | Draw 1-1 | -21563 |
| 2block | 162 | Abeyta, Albert (1500) | Won 2-0 | +171580 |
| 3block | 109 | Alexander, Dwight (1517) | Won 2-1 | +161596 |
| 4block | 82 | Martell, Tom (1730) | Lost 0-2 | -151581 |
| 5block | 145 | Apodaca, Matthew (1518) | Lost 0-2 | -191562 |
| 6block | 189 | Pauly, Christopher M (1576) | Lost 1-2 | -181544 |
| top | average opponent: 1551record: 2-3-1 | new rating: 1544 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 199 | Romero, Bill (1552) | Won 2-0 | +191519 |
| 2block | 64 | Krouner, Ken (1602) | Won 2-0 | +191538 |
| 3block | 68 | Ignacio, Kenny (1480) | Won 2-0 | +171555 |
| 4block | 57 | Coqueiro, Rafael S (1620) | Won 2-0 | +201575 |
| 5block | 27 | Scott-Vargas, Luis (1956) | Lost 0-2 | -121563 |
| 6block | 83 | Nguyen, James (1576) | Lost 1-2 | -181545 |
| 7block | 106 | Ochoa, Dustin (1451) | Won 2-0 | +171562 |
| 8block | 44 | Fritter, Mark R (1509) | Won 2-0 | +171579 |
| 9block | 46 | Sadin, Steven (1791) | Lost 0-0 | -141565 |
| top | average opponent: 1615record: 6-3 | new rating: 1565 | ||