Isendam, Rainier
Current rating: 1575
Record: 19-16
| Grand Prix Utrecht 2014 (M15 standard) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 69 | Gillard, Joe (1473) | Won 2-1 | +171546 |
| 2standard | 87 | Vargas, Luis (1488) | Lost 1-2 | -191527 |
| 3standard | 540 | Oliveira, Danilo (1411) | Lost 1-2 | -201507 |
| 4standard | 667 | Drieghe, Jonas (1575) | Lost 0-1 | -171490 |
| 5standard | 661 | Harts, Hans (1467) | Won 2-1 | +181508 |
| 6standard | 471 | Ruehrmair, Markus (1437) | Won 2-1 | +161524 |
| 7standard | 422 | Broion, Valentin (1501) | Won 2-0 | +181542 |
| 8standard | 300 | Zwick, Olivier (1414) | Won 2-1 | +161558 |
| 9standard | 170 | Walser, Rene (1548) | Won 2-0 | +171575 |
| top | average opponent: 1479record: 6-3 | new rating: 1575 | ||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 113 | Ehrle, Philip (1764) | Won 2-0 | +231484 |
| 2modern | 316 | Sormani, Reto (1701) | Lost 1-2 | -141470 |
| 3modern | 450 | De Clercq, Stijn (1586) | Won 2-0 | +201490 |
| 4modern | 380 | Van de Moele, Kristof (1518) | Won 2-1 | +181508 |
| 5modern | 278 | Fior, Daniel (1639) | Lost 0-2 | -151493 |
| 6modern | 281 | Frerard, David (1555) | Won 2-0 | +191512 |
| 7modern | 160 | Zwick, Olivier (1412) | Won 2-0 | +161528 |
| 8modern | 232 | Cohen, Arthur (1468) | Lost 0-2 | -191509 |
| 9modern | 212 | Koperberg, Twan (1618) | Won 2-0 | +201529 |
| top | average opponent: 1585record: 6-3 | new rating: 1529 | ||
| Grand Prix Verona 2013 (GTC standard) | starting rating: 1391 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 284 | Punella, Alex (1447) | Lost 1-2 | -171374 |
| 2standard | 311 | Anagnostoy, Spyros (1482) | Lost 0-2 | -161358 |
| 3standard | 473 | Bruni, Pietro (1463) | Won 2-1 | +201378 |
| 4standard | 469 | Vicari, Dzborah (1480) | Won 2-0 | +191397 |
| 5standard | 317 | Kenyeres, Akos (1508) | Won 2-1 | +201417 |
| 6standard | 280 | Giardina, Michael (1521) | Won 2-1 | +201437 |
| 7standard | 135 | Di Carlo, Lorenzo (1477) | Lost 1-2 | -171420 |
| 8standard | 291 | Giannecchini, Luca (1494) | Won 2-0 | +191439 |
| 9standard | 213 | Grumelli, Riccardo (1618) | Won 2-1 | +221461 |
| top | average opponent: 1499record: 6-3 | new rating: 1461 | ||
| Grand Prix Bochum 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 117 | Legrand, Patrick (1301) | Lost 0-2 | -221478 |
| 2standard | 288 | Ortmann, Christoph (1612) | Lost 0-2 | -151463 |
| 3standard | 358 | Wulf, Christian (1425) | Lost 0-2 | -191444 |
| 4standard | 394 | Decken, Tim (1447) | Lost 0-2 | -181426 |
| 5standard | 371 | Netz, Christopher (1427) | Lost 1-2 | -181408 |
| 6standard | 346 | Wessoly, Thorsten (1410) | Lost 1-2 | -181390 |
| 7standard | 300 | Le Gruiec, Laurent (1390) | Lost 1-2 | -181372 |
| 9standard | 216 | Beller, Dennis (1390) | Won 2-0 | +191391 |
| top | average opponent: 1425record: 1-7 | new rating: 1391 | ||