Koenders, Roderik
Current rating: 1600
Record: 21-17-1
| Grand Prix Birmingham 2018 (leg) (legacy) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 83 | Haefeker, Jan Erik (1648) | Won 2-1 | +201562 |
| 2legacy | 28 | Tell, Jonathan (1491) | Lost 1-2 | -201542 |
| 3legacy | 318 | McParlinJones, Joe (1479) | Won 2-1 | +171559 |
| 4legacy | 176 | Guidi, Nicola (1456) | Won 2-0 | +161575 |
| 5legacy | 227 | Hosejka, Vadim (1656) | Lost 0-2 | -161559 |
| 6legacy | 334 | Shawki, Benjamin (1508) | Won 2-1 | +171576 |
| 7legacy | 143 | Richards, Ethan (1498) | Won 2-1 | +161592 |
| 8legacy | 125 | Mckenzie, Ross (1559) | Won 2-0 | +181610 |
| 9legacy | 5072 | Choca, Joao (1910) | Lost 0-2 | -131597 |
| 10legacy | 5083 | Holzschneider, Kai (1632) | Won 2-1 | +191616 |
| 11legacy | 5086 | Clark, Nicholas (1544) | Won 2-0 | +161632 |
| 12legacy | 5037 | Ellingsen, Mats (1912) | Lost 1-2 | -131619 |
| 13legacy | 5056 | Kedrovic, Ondrej (1627) | Lost 0-2 | -181601 |
| 14legacy | 5071 | Bianchi, Marco (1553) | Lost 1-2 | -181583 |
| 15legacy | 5083 | Torkington, Robert (1575) | Won 2-1 | +171600 |
| top | average opponent: 1603record: 9-6 | new rating: 1600 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 289 | Chalk, Titus (1548) | Won 2-1 | +191489 |
| 2sealed | 181 | Wagenfeld, Dennis (1499) | Won 2-0 | +181507 |
| 3sealed | 227 | Tamura, Chiaki (1408) | Draw 1-1 | -11506 |
| 4sealed | 159 | Ayuub, Mohamud (1538) | Lost 1-2 | -181488 |
| 5sealed | 310 | Strauss, Leon (1521) | Won 2-0 | +191507 |
| 6sealed | 186 | Grabowski, Doug (1535) | Won 2-0 | +181525 |
| 7sealed | 115 | Muller, Sven (1547) | Won 2-0 | +191544 |
| 8sealed | 66 | Schrijvers, Alexander (1536) | Lost 1-2 | -181526 |
| 9sealed | 132 | Harte, Ruud (1421) | Won 2-0 | +161542 |
| top | average opponent: 1506record: 6-2-1 | new rating: 1542 | ||
| Grand Prix Utrecht 2014 (M15 standard) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 185 | Cattrysse, Sabbe (1683) | Won 2-0 | +221511 |
| 3standard | 5 | Wald, Piotr (1761) | Lost 0-2 | -141497 |
| 4standard | 354 | Lemoine, Vincent (1861) | Lost 1-2 | -121485 |
| 5standard | 415 | van der End, Martijn (1655) | Won 2-0 | +211506 |
| 6standard | 395 | Havas, Jean-Charles (1491) | Lost 1-2 | -181488 |
| 7standard | 328 | Kotzerke, Matthias (1522) | Won 2-1 | +191507 |
| 8standard | 291 | Heinonen, Aku (1485) | Lost 1-2 | -191488 |
| 9standard | 128 | Fleutot, Julien (1455) | Lost 0-2 | -181470 |
| top | average opponent: 1614record: 3-5 | new rating: 1470 | ||
| Grand Prix Milan 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 20 | Knizewski, Mateusz (1419) | Lost 0-2 | -191481 |
| 4sealed | 164 | Lewandowski, Bartlomiej (1542) | Lost 0-2 | -171464 |
| 5sealed | 333 | Sormani, Reto (1751) | Won 2-0 | +231487 |
| 6sealed | 327 | Prohll, Heiko (1486) | Won 2-1 | +181505 |
| 7sealed | 123 | Schito, Gabriele (1528) | Lost 0-2 | -181487 |
| 8sealed | 239 | Binkowska, Wioleta (1575) | Lost 1-2 | -161471 |
| 9sealed | 215 | Babbi, Aureliano (1487) | Won 2-1 | +181489 |
| top | average opponent: 1541record: 3-4 | new rating: 1489 | ||