Isekenmeier, Guido
Current rating: 1579
Record: 17-15
| Grand Prix Strasbourg 2019 (RNA limited) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Ruckpaul, Lars (1575) | Won 2-1 | +191531 |
| 2sealed | 68 | Hristov, Lenard (1737) | Won 2-1 | +221553 |
| 3sealed | 246 | Langer, Tim (1802) | Won 2-1 | +221575 |
| 4sealed | 51 | Monange, Frederic (1553) | Won 2-0 | +181593 |
| 5sealed | 55 | Romano, Nicola (1514) | Won 2-0 | +161609 |
| 6sealed | 25 | Martinez Querol, Daniel (1829) | Lost 1-2 | -141595 |
| 7sealed | 38 | Obraz, Jiri (1681) | Won 2-0 | +201615 |
| 8sealed | 66 | Libkin, Eugen (1831) | Won 2-1 | +221637 |
| 9sealed | 40 | Leroy, Yannick (1806) | Lost 0-2 | -151622 |
| 10draft | 11 | Fornasari, Michele (1774) | Lost 1-2 | -151607 |
| 11draft | 11 | Kutscher, Ulrich (1701) | Lost 0-2 | -171590 |
| 12draft | 11 | Jochum, Arnaud (1612) | Lost 0-2 | -171573 |
| 13draft | 64 | Reling, Andreas (1758) | Won 2-0 | +211594 |
| 14draft | 124 | Timmermans, Ron (1742) | Lost 0-2 | -151579 |
| top | average opponent: 1708record: 8-6 | new rating: 1579 | ||
| Grand Prix Strasbourg 2014 (KTK limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 277 | Gay Peiller, Nicolas (1389) | Won 2-0 | +161524 |
| 2sealed | 4 | Benetreau Dupin, Remi (1518) | Won 2-0 | +181542 |
| 3sealed | 46 | Berger, Natalia (1585) | Won 2-0 | +181560 |
| 4sealed | 27 | Knapova, Dominika (1481) | Lost 0-2 | -191541 |
| 5sealed | 188 | Perbet, Guillaume (1774) | Lost 1-2 | -141527 |
| 6sealed | 87 | Robb, Justin (1692) | Lost 0-2 | -151512 |
| top | average opponent: 1573record: 3-3 | new rating: 1512 | ||
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 661 | Japs, Markus (1500) | Won 2-0 | +171541 |
| 2sealed | 613 | Schaefer, Marius (1696) | Lost 0-2 | -151526 |
| 3sealed | 665 | Kwebeman, Erik-sander (1508) | Lost 0-2 | -181508 |
| top | average opponent: 1568record: 1-2 | new rating: 1508 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 70 | Huurrekorpi, Thomas (1599) | Won 2-1 | +201503 |
| 5sealed | 18 | Straub, Patrick (1568) | Won 2-1 | +191522 |
| 6sealed | 20 | Seume, Julian (1644) | Lost 0-2 | -151507 |
| 7sealed | 69 | Liebtrau, Adrian (1574) | Won 2-0 | +191526 |
| 8sealed | 15 | van der Gun, Paul (1551) | Lost 0-2 | -181508 |
| 9sealed | 48 | Kreher, Christian (1376) | Won 2-1 | +161524 |
| top | average opponent: 1552record: 4-2 | new rating: 1524 | ||
| Grand Prix Heidelberg 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 96 | Engels, Boris (1559) | Lost 0-2 | -171483 |
| 2sealed | 277 | Kuchenbecker, Sebastian (1482) | Won 2-0 | +181501 |
| 3sealed | 227 | Bosbach, Andreas (1499) | Lost 0-2 | -181483 |
| top | average opponent: 1513record: 1-2 | new rating: 1483 | ||