Gudmundsson, Sindri Thor
Current rating: 1553
Record: 8-6
| Grand Prix Copenhagen 2019 (MH1 limited) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 97 | Myrvig, Peter (1784) | Lost 0-2 | -141533 |
| 2sealed | 395 | Larsen, Michael 9525 (1485) | Won 2-0 | +181551 |
| 3sealed | 350 | Kretschmer, Maximilian (1487) | Lost 1-2 | -201531 |
| 4sealed | 562 | Evesque, Jeremy (1438) | Won 2-1 | +171548 |
| 5sealed | 434 | Kristoffersen, Johannes (1765) | Won 2-0 | +221570 |
| 6sealed | 227 | Cummings Eliassen, Theodor (1644) | Lost 0-2 | -171553 |
| average opponent: 1601record: 3-3 | new rating: 1553 | |||
| Grand Prix Stockholm 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 240 | Grosch, Mirko (1587) | Won 2-1 | +201520 |
| 2modern | 103 | Keane, Darragh (1518) | Won 2-1 | +181538 |
| 3modern | 36 | Purvis, Marc (1673) | Lost 0-2 | -161522 |
| 4modern | 329 | Zivec, Josef (1793) | Won 2-0 | +231545 |
| 5modern | 171 | Tuulenmaki, Tommi (1630) | Won 2-0 | +191564 |
| 6modern | 123 | Bordenabe, Nicolas (1635) | Lost 1-2 | -161548 |
| 7modern | 120 | Andersson Ceder, Jonatan (1547) | Won 2-1 | +181566 |
| 8modern | 111 | Hansson, Johan (1537) | Lost 1-2 | -191547 |
| average opponent: 1615record: 5-3 | new rating: 1547 | |||