Keller, Stephan
Current rating: 1487
Record: 32-32-1
| Grand Prix Prague 2018 (modern) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 281 | Janosic, Filip (1500) | Lost 1-2 | -171469 |
| 2modern | 521 | Steinbeiss, Alexander (1431) | Won 2-0 | +171486 |
| 3modern | 494 | Santos Piqueras, Javier (1518) | Lost 0-2 | -181468 |
| 4modern | 876 | Kutny, Jozef (1484) | Won 2-1 | +191487 |
| 5modern | 731 | Dizdarevic, Alena (1502) | Lost 0-2 | -181469 |
| 6modern | 762 | Szczesny, Pawel (1471) | Won 2-1 | +181487 |
| top | average opponent: 1484record: 3-3 | new rating: 1487 | ||
| Grand Prix Vienna 2014 (BNG limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 154 | Fries, Stefan (1816) | Lost 0-2 | -131549 |
| 3sealed | 289 | Francik, Petr (1488) | Lost 0-2 | -191530 |
| 4sealed | 403 | Leitenmuller, Markus (1351) | Won 2-0 | +151545 |
| 5sealed | 360 | Chovanec, Jakub (1483) | Lost 1-2 | -191526 |
| 6sealed | 428 | Toltsch, Nicolas (1452) | Lost 1-2 | -201506 |
| 7sealed | 390 | Groth, Johannes (1341) | Won 2-0 | +151521 |
| 8sealed | 310 | Kristoffersen, Johannes (1611) | Lost 1-2 | -161505 |
| 9sealed | 306 | Fahler, Bjorn (1479) | Lost 1-2 | -191486 |
| top | average opponent: 1503record: 2-6 | new rating: 1486 | ||
| Grand Prix Prague 2014 (modern) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 290 | Fukala, Dalibor (1463) | Lost 0-2 | -191496 |
| 2modern | 474 | Sanjuan, Victor (1482) | Won 2-0 | +181514 |
| 3modern | 426 | Bamberger, Mark (1509) | Won 2-1 | +181532 |
| 4modern | 261 | Macalik, Roman (1490) | Lost 1-2 | -191513 |
| 5modern | 446 | Genser, Jakob Alexander (1500) | Won 2-0 | +181531 |
| 6modern | 232 | Sielski, Piotr (1391) | Lost 1-2 | -211510 |
| 7modern | 393 | Vykydal, Miroslav (1456) | Won 2-0 | +171527 |
| 8modern | 305 | Berna Pena, Lucas Luciano (1491) | Won 2-1 | +181545 |
| 9modern | 254 | Ofmanski, Piotr (1536) | Won 2-0 | +171562 |
| top | average opponent: 1480record: 6-3 | new rating: 1562 | ||
| Grand Prix Milan 2011 (ISD limited) | starting rating: 1577 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 660 | Profeti, Luca (1388) | Lost 1-2 | -221555 |
| 3sealed | 699 | Bertone, Simone (1502) | Lost 0-2 | -191536 |
| 4sealed | 813 | Castro, Federico (1483) | Won 2-0 | +171553 |
| 5sealed | 816 | Colombo, Simone (1500) | Lost 0-2 | -191534 |
| 6sealed | 813 | Bonomi, Mauro (1466) | Lost 1-2 | -191515 |
| top | average opponent: 1468record: 1-4 | new rating: 1515 | ||
| Grand Prix Florence 2010 (SOM limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 161 | Gruppioni, Michele (1501) | Won 2-1 | +181533 |
| 2sealed | 11 | Vaisitti, Niccolo (1500) | Lost 0-2 | -191514 |
| 3sealed | 170 | Lopez, Enrique E (1572) | Won 2-1 | +191533 |
| 4sealed | 98 | Gatti, Luca (1487) | Won 2-0 | +171550 |
| 5sealed | 102 | Kraft, Rene (1849) | Won 2-0 | +231573 |
| 6sealed | 49 | Costantini, Andre 8412 (1554) | Won 2-1 | +181591 |
| 7sealed | 44 | Corsanini, Michele (1711) | Lost 1-2 | -161575 |
| 8sealed | 45 | Bruno, Luca (1670) | Lost 0-2 | -161559 |
| 9sealed | 75 | Mankovs, Dmitrijs (1540) | Won 2-1 | +181577 |
| top | average opponent: 1598record: 6-3 | new rating: 1577 | ||
| Grand Prix Paris 2008 (ALA limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 677 | Darmandieu, Simon (1537) | Won 2-1 | +181571 |
| 2sealed | 540 | Nouchi, Jonathan (1426) | Lost 0-2 | -211550 |
| 3sealed | 795 | Lopez, Manuel (1561) | Lost 0-2 | -171533 |
| 4sealed | 826 | Mede, Martin (1586) | Draw 1-1 | +11534 |
| 5sealed | 791 | Thiriot, Fabien (1484) | Lost 0-2 | -191515 |
| top | average opponent: 1519record: 1-3-1 | new rating: 1515 | ||
| Grand Prix Vienna 2008 (extended) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 143 | Groszler, Stefan-Daniel (1445) | Won 2-0 | +171537 |
| 2extended | 70 | Rutar, Andrej (1643) | Won 2-1 | +201557 |
| 3extended | 74 | Schnider, Jakob (1537) | Lost 0-2 | -191538 |
| 4extended | 129 | Koch, Florian (1568) | Won 2-1 | +191557 |
| 5extended | 95 | Surynek, Tomas T (1617) | Won 2-1 | +191576 |
| 6extended | 43 | Gov-Ari, Egal (1517) | Won 2-0 | +171593 |
| 7extended | 39 | Llano, Enrique (1603) | Won 2-1 | +181611 |
| 8extended | 21 | Bacic, Niko (1590) | Lost 1-2 | -181593 |
| 9extended | 51 | Zunko, Bojan (1670) | Won 2-0 | +191612 |
| 10extended | 41 | Calvetto, Marcello (1566) | Lost 1-2 | -191593 |
| 11extended | 58 | Brotzmann, Hendrik (1508) | Won 2-1 | +171610 |
| 12extended | 39 | Nagy, Tamas (1551) | Lost 0-2 | -191591 |
| 13extended | 50 | Fartacek, David (1600) | Lost 0-2 | -181573 |
| 14extended | 54 | Trost, Holger (1501) | Lost 0-2 | -201553 |
| top | average opponent: 1565record: 8-6 | new rating: 1553 | ||
| Grand Prix Stuttgart 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 181 | Nolting, Lovis (1500) | Won 2-0 | +181518 |
| 2sealed | 118 | Josupeit, Frank (1511) | Won 2-0 | +181536 |
| 3sealed | 47 | Giesser, Thomas (1503) | Lost 0-2 | -191517 |
| 4sealed | 102 | Biella, Mattia (1519) | Lost 1-2 | -181499 |
| 5sealed | 174 | Lipinski, Aleksander (1480) | Won 2-1 | +181517 |
| 6sealed | 178 | Jobst, Martin (1503) | Won 2-1 | +181535 |
| 7sealed | 108 | Kratsch, Stefan (1543) | Won 2-1 | +181553 |
| 8sealed | 91 | Stradner, Stefan (1692) | Lost 1-2 | -161537 |
| 9sealed | 87 | Penko, Matic (1571) | Lost 0-2 | -171520 |
| top | average opponent: 1536record: 5-4 | new rating: 1520 | ||