Tarko, Alexander
Current rating: 1575
| Grand Prix Prague 2014 (modern) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 199 | Blohon, Lukas (1959) | Lost 1-2 | -111543 |
| 3modern | 501 | Castelli, Massimo (1458) | Won 2-0 | +171560 |
| 4modern | 451 | Chochula, Michal (1469) | Won 2-0 | +161576 |
| 5modern | 283 | Boyko, Andrey (1649) | Won 2-0 | +191595 |
| 6modern | 188 | Kuril, Miroslav (1573) | Lost 1-2 | -181577 |
| 7modern | 193 | Esser, Benjamin (1538) | Won 2-0 | +171594 |
| 8modern | 197 | Moscatelli, Luigi (1525) | Lost 0-2 | -191575 |
| top | average opponent: 1596record: 4-3 | new rating: 1575 | ||
| Grand Prix Vienna 2013 (THS standard) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 232 | Dobrovodsky, Peter (1446) | Lost 1-2 | -201520 |
| 2standard | 409 | Krug, Christian (1384) | Won 2-1 | +161536 |
| 3standard | 420 | Maroti, Andras (1560) | Won 2-0 | +181554 |
| top | average opponent: 1463record: 2-1 | new rating: 1554 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 113 | Menzel, Ralf (1457) | Won 2-1 | +171517 |
| 2sealed | 246 | Stein, Leon (1488) | Lost 1-2 | -181499 |
| 3sealed | 559 | Dvorsky, Matous (1500) | Won 2-1 | +181517 |
| 4sealed | 339 | Soudan, Julian (1522) | Won 2-0 | +181535 |
| 5sealed | 277 | Matthijsse, Martin (1588) | Won 2-0 | +191554 |
| 6sealed | 120 | Schoots, Ulco (1499) | Lost 0-2 | -191535 |
| 7sealed | 332 | Taoubi, Farid (1643) | Lost 0-2 | -161519 |
| 8sealed | 308 | Strubelj, Gregor (1701) | Won 2-0 | +211540 |
| top | average opponent: 1550record: 5-3 | new rating: 1540 | ||