Arucan, Mark
Current rating: 1492
Record: 13-15-1
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 83 | Harford, Clint (1450) | Won 2-0 | +181497 |
| 2sealed | 24 | Roepke, Chris (1614) | Won 2-0 | +201517 |
| 3sealed | 333 | Heakins, Jason (1479) | Won 2-1 | +171534 |
| 4sealed | 191 | Davis, John (1912) | Won 2-1 | +251559 |
| 5sealed | 18 | Holgado, Nick (1545) | Won 2-1 | +181577 |
| 6sealed | 50 | Fabiano, Gerard (1838) | Won 2-0 | +221599 |
| 7sealed | 23 | Coffman, Robert (1688) | Lost 0-2 | -161583 |
| 8sealed | 60 | Severson, Eric (1916) | Lost 0-2 | -121571 |
| 9sealed | 141 | Kee, Benjamin (1474) | Lost 0-2 | -201551 |
| 10draft | 637 | Tumavitch, Matt (1938) | Lost 0-2 | -111540 |
| 11draft | 636 | Buck, Thomas (1583) | Lost 1-2 | -171523 |
| 12draft | 635 | Miller, Jason A (1657) | Lost 0-2 | -161507 |
| 13draft | 813 | Rodaitis, Andrew (1437) | Lost 1-2 | -191488 |
| 14draft | 677 | Simmons, Ryan (1462) | Won 2-1 | +171505 |
| 15draft | 747 | Falcioni, Matthew (1747) | Lost 1-2 | -131492 |
| top | average opponent: 1649record: 7-8 | new rating: 1492 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 27 | Parrish, Trace (1500) | Won 2-0 | +181516 |
| 2sealed | 281 | Liu, Thomas (1467) | Lost 0-2 | -191497 |
| 3sealed | 350 | Kleinsmith, Ethan (1501) | Lost 0-2 | -181479 |
| top | average opponent: 1489record: 1-2 | new rating: 1479 | ||
| Grand Prix Oakland 2010 (extended) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 168 | Cosby, Dustin (1500) | Won 2-0 | +181517 |
| 2extended | 126 | Gordon, Elliot J (1518) | Won 2-1 | +181535 |
| 3extended | 41 | Neuschwander, Justin (1536) | Draw 1-1 | 01535 |
| 4extended | 112 | Contreras, Cameron (1494) | Lost 0-2 | -191516 |
| 5extended | 189 | Custer, James (1507) | Lost 0-2 | -181498 |
| top | average opponent: 1511record: 2-2-1 | new rating: 1498 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 58 | McLaughlin, Lindsey (1500) | Lost 1-2 | -181482 |
| 2block | 210 | Elling, Tanner (1482) | Won 2-0 | +181500 |
| 3block | 188 | Holtsberry, Brent (1422) | Won 2-0 | +171517 |
| 4block | 189 | Yii, Terh Kuen (1600) | Lost 0-2 | -171500 |
| 5block | 202 | Greenstrand, James (1500) | Won 2-1 | +181518 |
| 6block | 186 | Ignacio, Kenny (1465) | Lost 1-2 | -191499 |
| top | average opponent: 1495record: 3-3 | new rating: 1499 | ||