Gunther, Mark C
Current rating: 1553
Record: 10-7
| Grand Prix London 2013 (GTC limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 450 | Trai, Tony (1500) | Won 2-0 | +181533 |
| 2sealed | 187 | Photiou, Andreas (1412) | Won 2-1 | +151548 |
| 3sealed | 124 | Bigorne, Aurelien (1490) | Won 2-1 | +171565 |
| 4sealed | 228 | Lefterov, Alexander (1674) | Lost 1-2 | -161549 |
| 5sealed | 165 | Creaney, Ryan (1462) | Won 2-1 | +171566 |
| 6sealed | 78 | Lennox-gordon, James (1544) | Lost 0-2 | -191547 |
| 7sealed | 215 | Jell, Philipp (1728) | Won 2-0 | +221569 |
| 8sealed | 169 | Pizzoccheri, Stefano (1704) | Lost 0-2 | -161553 |
| average opponent: 1564record: 5-3 | new rating: 1553 | |||
| Grand Prix Lille 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 551 | Bamberger, Mark (1506) | Won 2-1 | +181518 |
| 2standard | 628 | Gulidin, Alexey (1483) | Lost 0-2 | -191499 |
| 3standard | 745 | Villard, Axel (1527) | Lost 0-2 | -171482 |
| 4standard | 780 | Vermeulen, Eline (1481) | Lost 1-2 | -181464 |
| 5standard | 818 | Bouthois, Romain (1452) | Won 2-0 | +181482 |
| 6standard | 801 | Thomas, Baptiste M (1484) | Won 2-0 | +181500 |
| 7standard | 746 | Gabrielli, Pietro (1483) | Lost 0-2 | -191481 |
| 8standard | 713 | Courtial, Sylvain (1482) | Won 2-0 | +181499 |
| 9standard | 693 | Schepman, Patrick (1360) | Won 2-1 | +161515 |
| average opponent: 1473record: 5-4 | new rating: 1515 | |||