Stelzner, Karl
Current rating: 1547
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1568 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1287 | Dietze, Florian (1540) | Won 2-0 | +181586 |
| 2sealed | 1171 | Roman Acacio, Juan (1536) | Lost 1-2 | -191567 |
| 3sealed | 1336 | Matthijsse, Martin (1495) | Lost 0-2 | -201547 |
| 4sealed | 1421 | Perducat, Etienne (1471) | Won 2-1 | +171564 |
| 5sealed | 1356 | Klevtsov, Aleksandr (1643) | Lost 1-2 | -171547 |
| top | average opponent: 1537record: 2-3 | new rating: 1547 | ||
| Grand Prix Utrecht 2014 (M15 standard) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 52 | Buis, Anne (1518) | Won 2-1 | +181528 |
| 3standard | 75 | Ryba, Martin (1468) | Won 2-1 | +171545 |
| 4standard | 12 | Kaukoranta, Ville (1713) | Lost 1-2 | -151530 |
| 5standard | 267 | Aguzzi, Hugo (1575) | Won 2-1 | +191549 |
| 6standard | 68 | Korbl, Adorjan (1683) | Won 2-0 | +201569 |
| 7standard | 111 | Muller, Christophe (1571) | Won 2-0 | +181587 |
| 8standard | 56 | van Medevoort, Robert (1812) | Won 2-1 | +221609 |
| 9standard | 19 | Antoniou, Daniel (1817) | Lost 0-2 | -141595 |
| 10standard | 81 | Levitt, Olivier (1573) | Won 2-1 | +181613 |
| 11standard | 53 | Kaschapow, Marcel (1812) | Won 2-1 | +211634 |
| 12standard | 23 | Heirman, Robbe (1637) | Lost 1-2 | -181616 |
| 13standard | 38 | Grasset, Jean-Baptiste (1566) | Lost 1-2 | -191597 |
| 14standard | 42 | Wiederspan, Paul (1647) | Lost 0-2 | -171580 |
| 15standard | 57 | Krautmann, Wenzel (1904) | Lost 1-2 | -121568 |
| top | average opponent: 1664record: 8-6 | new rating: 1568 | ||
| Grand Prix Milan 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 236 | Simpson, Louis (1589) | Won 2-0 | +201520 |
| 3sealed | 199 | Bruno, Gerardo (1632) | Won 2-0 | +201540 |
| 4sealed | 116 | Santos, Bernardo (1519) | Lost 0-2 | -191521 |
| 5sealed | 123 | Ricci, Marco (1720) | Lost 0-2 | -141507 |
| 6sealed | 173 | Didier, Nicolas (1329) | Won 2-0 | +151522 |
| 7sealed | 122 | Marinari, Manuel (1701) | Lost 1-2 | -151507 |
| 8sealed | 227 | Schefer, Meinrad (1518) | Won 2-0 | +181525 |
| 9sealed | 123 | Valkamaa, Sami (1688) | Lost 0-2 | -151510 |
| top | average opponent: 1587record: 4-4 | new rating: 1510 | ||