Kaltsas, Kostas
Current rating: 1422
Record: 30-33-9
| Grand Prix Rimini 2013 (M14 limited) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 134 | Marchegiani, Luca (1500) | Lost 0-2 | -171456 |
| 2sealed | 326 | Matouskova, Lenka (1447) | Won 2-0 | +181474 |
| 3sealed | 331 | Asisnato, Gustavo (1576) | Lost 1-2 | -171457 |
| 4sealed | 443 | Doridot, Yoan (1447) | Lost 1-2 | -181439 |
| 5sealed | 437 | Nicosia, Alvaro (1473) | Lost 0-2 | -171422 |
| top | average opponent: 1489record: 1-4 | new rating: 1422 | ||
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 5 | Collin, Thorsten (1482) | Lost 1-2 | -181492 |
| 2standard | 264 | Bohm, Philip (1456) | Lost 0-2 | -191473 |
| top | average opponent: 1469record: 0-2 | new rating: 1473 | ||
| Grand Prix Paris 2009 (ZEN limited) | starting rating: 1530 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 770 | Cocchi-Perrier, Christopher (1558) | Lost 0-2 | -181512 |
| 2sealed | 1003 | Pelle, Emmanuel (1430) | Won 2-0 | +171529 |
| 3sealed | 817 | Duguet, Nicolas (1512) | Lost 1-2 | -191510 |
| top | average opponent: 1500record: 1-2 | new rating: 1510 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 561 | Petrik, Adam (1500) | Draw 1-1 | +11474 |
| 2sealed | 696 | Smirnov, Alexander (1515) | Won 2-1 | +181492 |
| 3sealed | 628 | Gallus, Andrej (1609) | Draw 1-1 | +21494 |
| 4sealed | 742 | Sparacio, Patricia (1449) | Won 2-0 | +181512 |
| 5sealed | 670 | Lipinski, Aleksander (1481) | Won 2-0 | +171529 |
| 6sealed | 609 | Regent, Iztok (1555) | Won 2-0 | +191548 |
| 7sealed | 568 | Bachura, Miroslav (1528) | Lost 0-2 | -191529 |
| 8sealed | 618 | Kalmykov, Kirill (1535) | Won 2-1 | +181547 |
| 9sealed | 578 | Olenin, Dmitry (1572) | Lost 0-2 | -171530 |
| top | average opponent: 1527record: 5-2-2 | new rating: 1530 | ||
| Grand Prix Paris 2008 (ALA limited) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 314 | Gavard, Simon (1463) | Won 2-0 | +171527 |
| 2sealed | 60 | Schenk, Geert (1554) | Lost 0-2 | -171510 |
| 3sealed | 162 | Bedel, Gregory (1519) | Lost 0-2 | -181492 |
| 4sealed | 334 | Rothenhaeusler, Peter (1459) | Lost 1-2 | -191473 |
| top | average opponent: 1499record: 1-3 | new rating: 1473 | ||
| Grand Prix Vienna 2008 (extended) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 2 | Mederly, Martin (1500) | Lost 1-2 | -191533 |
| 2extended | 164 | Spindlbeck, Philipp (1482) | Won 2-0 | +171550 |
| 3extended | 202 | Hloska, Martin (1424) | Lost 1-2 | -201530 |
| 4extended | 216 | Allritz, Diana (1440) | Lost 1-2 | -201510 |
| top | average opponent: 1461record: 1-3 | new rating: 1510 | ||
| Grand Prix Stuttgart 2007 (LRW limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 45 | Zijp, Teun (1500) | Draw 1-1 | -11537 |
| 2sealed | 174 | Czuprynski, Krystian (1503) | Won 2-1 | +171554 |
| 3sealed | 102 | Massart, Philippe (1581) | Won 2-1 | +191573 |
| 4sealed | 89 | Neuhauser, Lukas (1493) | Lost 1-2 | -201553 |
| 5sealed | 150 | Seidel, Martin (1519) | Lost 0-2 | -181535 |
| 6sealed | 191 | Alexandersson, Andreas (1503) | Won 2-0 | +171552 |
| 7sealed | 140 | Jurkovsky, Ondrej (1524) | Draw 1-1 | 01552 |
| top | average opponent: 1517record: 3-2-2 | new rating: 1552 | ||
| Grand Prix Athens 2006 (TSP limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Spanos, John (1500) | Lost 0-2 | -181484 |
| 2sealed | 149 | Stayrakas, Panagitotis (1482) | Won 2-0 | +181502 |
| 3sealed | 113 | Dorle, Ludovic (1462) | Draw 1-1 | -11501 |
| 4sealed | 150 | Gavriilidis, Andreas (1500) | Draw 1-1 | 01501 |
| 5sealed | 170 | Virag, Daniel (1483) | Won 2-0 | +181519 |
| 6sealed | 136 | Mitropappas, Christos (1519) | Won 2-1 | +181537 |
| 7sealed | 102 | Partenhauser, Johannes (1607) | Lost 1-2 | -171520 |
| 8sealed | 108 | van Weverwijk, Erik (1484) | Won 2-0 | +181538 |
| top | average opponent: 1505record: 4-2-2 | new rating: 1538 | ||
| Grand Prix Turin 2006 (DIS limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 169 | Bianco, Luca (1500) | Lost 0-2 | -191543 |
| 2sealed | 269 | Amateis, Marco (1483) | Lost 1-2 | -191524 |
| 3sealed | 278 | Alessi, Mauro (1464) | Won 2-0 | +171541 |
| 4sealed | 270 | Kelterbaum, Richard (1449) | Lost 0-2 | -201521 |
| 5sealed | 229 | Greco, Marco (1464) | Lost 1-2 | -191502 |
| top | average opponent: 1472record: 1-4 | new rating: 1502 | ||
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 63 | Hendrikx, Dolf (1516) | Lost 0-2 | -181528 |
| 2extended | 385 | Grager, Jani (1461) | Won 2-1 | +161544 |
| 3extended | 281 | De Jong, Yannick (1497) | Won 2-1 | +181562 |
| 4extended | 145 | Vogel, Tobias (1506) | Lost 1-2 | -191543 |
| 5extended | 299 | Chaplin, Ian (1500) | Won 2-1 | +171560 |
| 6extended | 166 | Sienko, Piotr (1775) | Lost 0-2 | -141546 |
| 7extended | 240 | Duisings, Vico (1471) | Won 2-0 | +161562 |
| top | average opponent: 1532record: 4-3 | new rating: 1562 | ||
| Grand Prix Paris 2004 (COK limited) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 132 | Weber, Robert (1426) | Lost 0-2 | -201538 |
| 2sealed | 290 | Kosynski, Baptiste (1538) | Lost 0-2 | -181520 |
| 3sealed | 337 | Lesert, Charly (1465) | Won 2-0 | +171537 |
| 4sealed | 271 | Pauli, Tormod (1480) | Draw 1-1 | -11536 |
| 5sealed | 259 | Maubert, Noham (1484) | Won 2-0 | +171553 |
| 6sealed | 187 | Lebreton, Francois (1502) | Draw 1-1 | -11552 |
| 7sealed | 175 | Caster, Sylvain (1501) | Draw 1-1 | -11551 |
| 8sealed | 129 | Almeida, Tiago (1484) | Lost 0-2 | -191532 |
| 9sealed | 104 | Rocha, Francisco (1340) | Won 2-1 | +141546 |
| top | average opponent: 1469record: 3-3-3 | new rating: 1546 | ||
| Grand Prix Rimini 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 5 | Lorkovic, Hrvoje (1500) | Won 2-1 | +181518 |
| 2block | 137 | Rehulka, Karlos (1500) | Won 2-1 | +181536 |
| 3block | 77 | Vergendo, Maurizio (1586) | Lost 1-2 | -171519 |
| 4block | 141 | Mori, Manuel (1517) | Won 2-1 | +181537 |
| 5block | 54 | Federici, Andrea (1535) | Won 2-0 | +181555 |
| 6block | 93 | Ceci, Walter (1501) | Won 2-0 | +171572 |
| 7block | 29 | Litti, Alessandro (1573) | Lost 0-2 | -181554 |
| 8block | 42 | Lo Moro, Raffaele (1898) | Lost 0-2 | -121542 |
| 9block | 102 | Kubicza, Gunter (1456) | Won 2-0 | +161558 |
| top | average opponent: 1563record: 6-3 | new rating: 1558 | ||