Nienhaus, Jens
Current rating: 1646
Record: 43-35
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1656 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 457 | Van De Wardt, Beau (1500) | Won 2-0 | +151671 |
| 2sealed | 293 | Katanic, Mirko (1671) | Lost 0-2 | -181653 |
| 3sealed | 561 | Isaksson, Andreas (1646) | Won 2-0 | +181671 |
| 4sealed | 284 | Spapens, Oliver (1560) | Won 2-1 | +161687 |
| 5sealed | 229 | Spalinger, Samir (1593) | Lost 0-2 | -191668 |
| 6sealed | 294 | Wiktorzak, Piotr (1768) | Lost 0-2 | -171651 |
| 7sealed | 322 | Arens, Jonathan (1468) | Lost 0-2 | -211630 |
| 8sealed | 316 | Birgel, Michael (1505) | Won 2-0 | +161646 |
| top | average opponent: 1589record: 4-4 | new rating: 1646 | ||
| Grand Prix Utrecht 2017 (AER standard) | starting rating: 1591 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 123 | Berg, Jens (1500) | Won 2-0 | +161607 |
| 2standard | 262 | Wouters, Michael (1444) | Lost 1-2 | -211586 |
| 3standard | 374 | Knebel, Sebastian (1308) | Won 2-1 | +131599 |
| 4standard | 277 | Stok, Alex (1882) | Won 2-0 | +231622 |
| 5standard | 278 | Bahr, Peter Michael (1668) | Won 2-1 | +191641 |
| 6standard | 53 | Berteaux, Julien (1691) | Won 2-1 | +191660 |
| 7standard | 33 | Huschenbeth, Arne (1760) | Lost 0-2 | -161644 |
| 8standard | 172 | Kowal, Filip (1574) | Won 2-0 | +161660 |
| 9standard | 121 | Scherpenzeel, Dennis (1622) | Won 2-1 | +181678 |
| 10standard | 40 | Hector, Stephan (1599) | Lost 0-2 | -201658 |
| 11standard | 126 | Papadopoulos, Panagiotis (1844) | Lost 1-2 | -141644 |
| 12standard | 149 | Weinhardt, Denny (1890) | Lost 1-2 | -141630 |
| 13standard | 141 | Messow, Philip (1870) | Won 2-0 | +221652 |
| 14standard | 111 | Lesaege, Clement (1817) | Won 2-1 | +211673 |
| 15standard | 104 | Drapala, Thomas (1720) | Lost 1-2 | -171656 |
| top | average opponent: 1679record: 9-6 | new rating: 1656 | ||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1627 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 268 | Barozzi, Giovanni (1500) | Won 2-0 | +151642 |
| 2standard | 110 | Shaporda, Oleksandr (1591) | Lost 1-2 | -181624 |
| 3standard | 389 | Kubala, Jakub (1501) | Won 2-1 | +151639 |
| 4standard | 246 | Oppliger, Daniel (1610) | Lost 0-2 | -181621 |
| 5standard | 301 | Kulesza, Damian (1480) | Lost 1-2 | -211600 |
| 6standard | 372 | Vandermaelen, Yves (1296) | Won 2-0 | +131613 |
| 7standard | 404 | Woskresinski, Bartlomiej (1629) | Lost 1-2 | -181595 |
| 8standard | 371 | Voiteh, Stas (1482) | Won 2-0 | +161611 |
| 9standard | 318 | Tonkin, Debbie (1474) | Lost 1-2 | -201591 |
| top | average opponent: 1507record: 4-5 | new rating: 1591 | ||
| Grand Prix Paris 2016 (OGW standard) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 79 | Tatat, Clement (1472) | Lost 0-2 | -181472 |
| 3standard | 569 | Burny, Anouk (1489) | Won 2-0 | +181490 |
| 4standard | 279 | Millares, Paul (1518) | Won 2-1 | +191509 |
| 5standard | 127 | Rozakeas, Socrates (1770) | Lost 1-2 | -141495 |
| 6standard | 382 | Manzonato, Stefano (1585) | Lost 1-2 | -161479 |
| 7standard | 400 | Schmidt, Uwe (1507) | Won 2-0 | +191498 |
| 8standard | 297 | Buffin, Vincent (1597) | Won 2-1 | +191517 |
| 9standard | 212 | Schuhmann, Julian (1620) | Won 2-0 | +201537 |
| 10standard | 194 | Gorzgen, Fabian (1816) | Won 2-0 | +231560 |
| 11standard | 92 | Eckhard, Linus (1559) | Won 2-0 | +181578 |
| 12standard | 56 | Drohberg, Philipp (1754) | Won 2-0 | +211599 |
| 13standard | 29 | Jolly, Wilfrield (1599) | Won 2-1 | +181617 |
| 14standard | 26 | Knorr, Sebastian (1837) | Lost 0-2 | -141603 |
| 15standard | 71 | Hautot, Mathieu (1917) | Won 2-0 | +241627 |
| top | average opponent: 1646record: 10-4 | new rating: 1627 | ||
| Grand Prix Brussels 2015 (BFZ standard) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 31 | Mohren, Christian (1518) | Won 0-0 | +181539 |
| 3standard | 246 | Duijzer, Richard (1563) | Lost 0-2 | -171522 |
| 4standard | 498 | Ristovsky, Tom (1738) | Lost 0-2 | -151507 |
| 5standard | 592 | Reijke, Sjoerd (1525) | Won 2-1 | +191526 |
| 6standard | 421 | Gariston, Yoan (1529) | Won 2-0 | +181544 |
| 7standard | 396 | Oosterbaan, Fokke (1432) | Lost 1-2 | -201524 |
| 8standard | 398 | Pohl, Kajetan (1496) | Lost 1-2 | -191505 |
| 9standard | 361 | Schaller, Sebastian (1668) | Lost 0-2 | -151490 |
| top | average opponent: 1559record: 3-5 | new rating: 1490 | ||
| Grand Prix Paris 2015 (DTK standard) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 265 | Goncarov, Jan (1488) | Lost 1-2 | -201543 |
| 3standard | 491 | Rubi, Jean-Francois (1489) | Lost 1-2 | -191524 |
| 4standard | 530 | Meijers, Vincent (1469) | Lost 0-2 | -191505 |
| 5standard | 595 | Durand, Raphael (1464) | Won 2-1 | +181523 |
| 6standard | 482 | Itard, Alexandre (1483) | Won 2-1 | +171540 |
| 7standard | 373 | Dhordain, Vincent (1499) | Lost 0-2 | -191521 |
| top | average opponent: 1482record: 2-4 | new rating: 1521 | ||
| Grand Prix Strasbourg 2014 (KTK limited) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 100 | Hermite, Thomas (1500) | Won 2-1 | +171568 |
| 2sealed | 142 | Muller, Sven (1472) | Lost 0-2 | -201548 |
| 3sealed | 256 | Sauvage, Christophe (1515) | Lost 1-2 | -191529 |
| 4sealed | 374 | Schafer, Henning Tobia (1480) | Won 2-0 | +171546 |
| 5sealed | 282 | Janasiewicz, Alexandre (1604) | Won 2-1 | +191565 |
| 6sealed | 212 | Costentin, Paul (1566) | Lost 1-2 | -181547 |
| 7sealed | 227 | Kolipinski, Adam (1518) | Won 2-1 | +181565 |
| 8sealed | 182 | Berka, David (1490) | Won 2-1 | +161581 |
| 9sealed | 108 | Schneider, Jean-pierre (1541) | Lost 0-2 | -181563 |
| top | average opponent: 1521record: 5-4 | new rating: 1563 | ||
| Grand Prix Utrecht 2014 (M15 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 350 | Spenner, Dennis (1588) | Lost 0-2 | -161484 |
| 2standard | 605 | Murrath, Tom (1447) | Lost 0-2 | -191465 |
| 3standard | 683 | Kruglov, Alexey (1466) | Won 2-0 | +181483 |
| 4standard | 641 | Sodergren, Christian (1371) | Won 2-1 | +161499 |
| 5standard | 481 | Lepot, Kevin (1444) | Won 2-0 | +171516 |
| 6standard | 333 | Mispelters, Peter (1425) | Won 2-0 | +161532 |
| 7standard | 292 | Ortmann, Christoph (1585) | Won 2-0 | +191551 |
| 8standard | 125 | Sawyer, James (1520) | Lost 0-2 | -181533 |
| 9standard | 212 | Rigolet, Thibault (1524) | Won 2-0 | +181551 |
| top | average opponent: 1486record: 6-3 | new rating: 1551 | ||