Arnason, Sigurdur
Current rating: 1594
Record: 9-5-1
| Grand Prix Copenhagen 2019 (MH1 limited) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 380 | Schalin, Ville (1639) | Won 2-1 | +201583 |
| 2sealed | 192 | Runander, Khan (1542) | Won 2-1 | +171600 |
| 3sealed | 198 | Gobert, Alois (1827) | Won 2-1 | +221622 |
| 4sealed | 9 | Schmit, Claude (1953) | Lost 0-2 | -121610 |
| 5sealed | 281 | Stastny, Jakub (1536) | Lost 0-2 | -201590 |
| 6sealed | 315 | Aristov, Boris (1862) | Won 2-0 | +231613 |
| 7sealed | 266 | Ortiz, Roberto (1542) | Lost 1-2 | -191594 |
| average opponent: 1700record: 4-3 | new rating: 1594 | |||
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 502 | Jaroch, Jan (1500) | Won 2-1 | +181518 |
| 2sealed | 303 | De Vareilles, Leonard (1703) | Lost 1-2 | -151503 |
| 3sealed | 571 | Edstrom, Christoffer (1498) | Won 2-0 | +181521 |
| 4sealed | 314 | De Zeeuw, Donald (1494) | Lost 0-2 | -181503 |
| 5sealed | 587 | Grayson, Neil (1586) | Won 2-1 | +191522 |
| 6sealed | 368 | Schultz, David [DEU] (1433) | Draw 1-1 | -11521 |
| 7sealed | 415 | Papakonstantinou, Thomas (1616) | Won 2-1 | +191540 |
| 8sealed | 284 | Bignami, Andrea (1811) | Won 2-0 | +231563 |
| average opponent: 1580record: 5-2-1 | new rating: 1563 | |||