Bovan, Kosta
Current rating: 1583
| Grand Prix Prague 2017 (AER limited) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 308 | Kraft, Lukas (1830) | Won 2-1 | +241518 |
| 2sealed | 38 | Pruchniewicz, Jan (1724) | Won 2-0 | +221540 |
| 3sealed | 370 | Kusebauch, Roland (1534) | Lost 0-2 | -181522 |
| 4sealed | 582 | Gillam, Catherine (1522) | Won 2-1 | +181540 |
| 5sealed | 440 | Floch, Ivan (1973) | Lost 0-2 | -111529 |
| 6sealed | 342 | Leupold, Kim (1525) | Won 2-0 | +181547 |
| 7sealed | 271 | Body, John (1545) | Won 2-0 | +181565 |
| 8sealed | 166 | Thormahlen, Bruno (1536) | Won 2-1 | +181583 |
| 9sealed | 198 | Brendemuhl, Bernd (1627) | Lost 0-2 | -181565 |
| 10draft | 232 | Miles, George (1669) | Won 2-1 | +201585 |
| 11draft | 229 | Santos, Bernardo (1872) | Lost 1-2 | -131572 |
| 12draft | 119 | Vardzik, Marek (1663) | Won 2-0 | +201592 |
| 13draft | 253 | Kovacs, Gabor (1473) | Lost 1-2 | -201572 |
| 14draft | 92 | Santos, Bernardo (1848) | Won 2-1 | +231595 |
| 15draft | 139 | Carvalho, Pedro (1931) | Lost 0-2 | -121583 |
| top | average opponent: 1685record: 9-6 | new rating: 1583 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 2048 | De Zeeuw, Donald (1500) | Won 2-0 | +181526 |
| 4sealed | 2076 | Ulke, Dominic (1555) | Lost 1-2 | -181508 |
| 5sealed | 2105 | Zintl, Fabian (1536) | Lost 1-2 | -171491 |
| 6sealed | 2140 | Donovan, Jamie (1513) | Won 2-1 | +181509 |
| 7sealed | 2133 | Krebs, Markus (1669) | Lost 0-2 | -151494 |
| top | average opponent: 1555record: 2-3 | new rating: 1494 | ||
| Grand Prix Milan 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 442 | Ricciardi, Mauro (1515) | Won 2-0 | +181518 |
| 2modern | 217 | Tomcani, Jan (1857) | Lost 1-2 | -121506 |
| 3modern | 608 | Foradini, Massimiliano (1322) | Won 2-0 | +151521 |
| 4modern | 443 | Vaisitti, Niccolo (1549) | Lost 0-2 | -181503 |
| 5modern | 497 | Bini, Paolo (1774) | Lost 1-2 | -131490 |
| 6modern | 589 | Scotti, Giuseppe (1480) | Won 2-0 | +181508 |
| top | average opponent: 1583record: 3-3 | new rating: 1508 | ||