Feenstra, Rens
Current rating: 1674
Record: 34-24 (GP) / 3-8 (professional)
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1675 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 107 | Bohny, Nico (1797) | Won 2-1 | +201695 |
| 5sealed | 13 | Hollmann, Marc (1687) | Won 2-1 | +181713 |
| 6sealed | 2 | Valori, Kim (1824) | Lost 1-2 | -161697 |
| 7sealed | 53 | Smajcl, Jan (1572) | Won 2-0 | +161713 |
| 8sealed | 24 | Lubenik, Michal (1647) | Lost 0-2 | -191694 |
| 9sealed | 52 | Lavs, Primoz (1599) | Lost 1-2 | -201674 |
| top | average opponent: 1688record: 3-3 | new rating: 1674 | ||
| Grand Prix Hanover 2009 (extended) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 405 | Rienksma, Rienk (1566) | Won 2-1 | +181598 |
| 5extended | 412 | Perez Fresnedo, Javier (1663) | Lost 1-2 | -171581 |
| 6extended | 424 | Luy, Theo (1534) | Won 2-1 | +171598 |
| 7extended | 437 | Petit, Julien (1649) | Won 2-0 | +191617 |
| 8extended | 415 | Weitkamp, Christoph (1599) | Won 2-1 | +181635 |
| 9extended | 406 | Kocsis, Gabor (1789) | Won 2-0 | +211656 |
| 10extended | 4 | Zornes, James (1812) | Won 2-1 | +201676 |
| 11extended | 6 | Kunwald, Christian (1738) | Won 2-0 | +191695 |
| 12extended | 35 | Oberg, Kenny (2021) | Lost 0-2 | -121683 |
| 13extended | 4 | Nakamura, Shuhei (2103) | Lost 1-2 | -111672 |
| 14extended | 20 | Kukucska, Zsolt (1699) | Won 2-0 | +191691 |
| 15extended | 7 | Cavaglieri, William (1810) | Lost 1-2 | -161675 |
| top | average opponent: 1748record: 8-4 | new rating: 1675 | ||
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 406 | Tourino Garcia, Abel (1591) | Won 2-1 | +201520 |
| 3sealed | 432 | Berthoux, Jeremy (1763) | Won 2-0 | +221542 |
| 4sealed | 431 | Lybaert, Marijn (2001) | Won 2-1 | +261568 |
| 5sealed | 415 | Cortez, Paulo Ricardo (1581) | Lost 1-2 | -181550 |
| 6sealed | 448 | Doropoulos, Marios-Isidoros (1574) | Lost 0-2 | -171533 |
| 7sealed | 524 | Geist, Jonathan (1465) | Won 2-1 | +171550 |
| 8sealed | 478 | Kummer, Tomas (1513) | Won 2-0 | +171567 |
| 9sealed | 448 | Duignan, Thomas M (1561) | Won 2-1 | +181585 |
| 10draft | 11 | Goertzen, Simon (1853) | Lost 1-2 | -131572 |
| 11draft | 7 | Perpete, Fabrice (1617) | Won 2-1 | +181590 |
| 12draft | 68 | De Bruijn, Vincent (1557) | Won 2-0 | +181608 |
| 13draft | 2 | Wigge, Mathias (1872) | Lost 1-2 | -131595 |
| 14draft | 38 | Brodzak, Jan (1793) | Lost 1-2 | -151580 |
| top | average opponent: 1672record: 8-5 | new rating: 1580 | ||
| Pro Tour Berlin 2008 (extended) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 59 | Aoki, Ryousuke (1677) | Lost 1-2 | -161527 |
| 2extended | 142 | Cammilluzzi, Marco (1722) | Won 2-0 | +221549 |
| 3extended | 122 | Amaya Troncoso, Carlos (1511) | Lost 0-2 | -191530 |
| 4extended | 143 | Davey, Keoni (1495) | Lost 1-2 | -191511 |
| 5extended | 206 | Ruel, Olivier (1919) | Lost 1-2 | -111500 |
| top | average opponent: 1665record: 1-4 | new rating: 1500 | ||
| Grand Prix Paris 2008 (ALA limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 642 | Legal, Maxime (1520) | Won 2-1 | +181495 |
| 3sealed | 551 | Koster, Olaf (1662) | Lost 1-2 | -151480 |
| 4sealed | 690 | Borgel, Nicolas (1651) | Lost 1-2 | -151465 |
| 5sealed | 771 | Dooms, Bram (1573) | Won 2-0 | +201485 |
| 6sealed | 677 | Prevot, Alexandre (1579) | Won 2-0 | +201505 |
| 7sealed | 634 | Lesaege, Clement (1537) | Won 2-0 | +191524 |
| 8sealed | 562 | Boussaud, Eliott (1580) | Won 2-1 | +191543 |
| top | average opponent: 1586record: 5-2 | new rating: 1543 | ||
| Pro Tour Hollywood 2008 (SHM standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 51 | Wiegersma, Jelger (1815) | Lost 0-2 | -121493 |
| 2standard | 139 | Orsini Jones, Matteo (1571) | Lost 0-2 | -171476 |
| 3standard | 167 | Hautot, Mathieu (1476) | Won 2-1 | +181494 |
| 4standard | 113 | Patrick-Riley, Josh (1421) | Won 2-0 | +171511 |
| 5standard | 63 | Vicente Ferrer, Ricardo (1584) | Lost 0-2 | -171494 |
| 6standard | 137 | Nyberg, Andrew (1511) | Lost 1-2 | -171477 |
| top | average opponent: 1563record: 2-4 | new rating: 1477 | ||
| Grand Prix Brussels 2008 (SHM limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 104 | Waelkens, Wim (1527) | Won 2-0 | +181521 |
| 2sealed | 176 | De Bondt, Sven (1518) | Won 2-0 | +181539 |
| 3sealed | 87 | Serbruyns, Joachim (1517) | Won 2-0 | +181557 |
| 4sealed | 18 | Creiche, Selim (1766) | Lost 0-2 | -151542 |
| 5sealed | 71 | Preiss, Christian (1540) | Won 2-0 | +181560 |
| 6sealed | 47 | Verbeeck, Matthias (1481) | Lost 0-2 | -191541 |
| 7sealed | 86 | Seidel, Timo (1535) | Lost 0-0 | -181523 |
| 8sealed | 126 | Michels, Tim (1558) | Lost 1-2 | -181505 |
| top | average opponent: 1555record: 4-4 | new rating: 1505 | ||
| Grand Prix Stuttgart 2007 (LRW limited) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 168 | Paulis, Xavier (1609) | Lost 1-2 | -171522 |
| 2sealed | 195 | Sader, Andre (1524) | Lost 0-2 | -181504 |
| 3sealed | 283 | Langensiepen, Sven (1464) | Won 2-0 | +171521 |
| 4sealed | 282 | Blomstergren, Viktor J (1485) | Lost 1-2 | -181503 |
| top | average opponent: 1521record: 1-3 | new rating: 1503 | ||
| Grand Prix Hasselt 2006 (RAV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 77 | Hofmann, Mike (1492) | Lost 0-2 | -181482 |
| 2sealed | 234 | Foket, Kurt (1550) | Lost 0-2 | -171465 |
| 3sealed | 226 | Salvatore, Racinello (1464) | Won 2-0 | +181483 |
| 4sealed | 191 | Hartmann, Christian (1482) | Won 2-1 | +181501 |
| 5sealed | 133 | Vandaele, Nick (1497) | Won 2-0 | +181519 |
| 6sealed | 110 | Rispal, Jonathan (1704) | Won 2-0 | +211540 |
| 7sealed | 91 | Palominos, Pablo (1457) | Lost 1-2 | -191521 |
| 8sealed | 95 | Weiten, Alban (1509) | Won 2-1 | +181539 |
| top | average opponent: 1519record: 5-3 | new rating: 1539 | ||