Jacobs, Jens
Current rating: 1468
Record: 27-34
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 345 | Fernandez, Manuel Alejandro (1732) | Won 2-1 | +231521 |
| 4pioneer | 69 | Truffaut, Clement (1546) | Lost 1-2 | -181503 |
| 5pioneer | 273 | Wiederspan, Paul (1440) | Lost 1-2 | -191484 |
| 6pioneer | 371 | Caunce, Graham (1621) | Lost 0-2 | -161468 |
| top | average opponent: 1585record: 1-3 | new rating: 1468 | ||
| Grand Prix Strasbourg 2019 (RNA limited) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 111 | Baglin, Arnaud (1854) | Won 2-1 | +251480 |
| 3sealed | 21 | Lesne, Guillaume (1522) | Won 2-0 | +191499 |
| 4sealed | 136 | Verdiani, Luca (1773) | Won 2-0 | +231522 |
| 5sealed | 54 | Vefa, Yusuf Kemal (1616) | Won 2-0 | +191541 |
| 6sealed | 22 | Matull, Milan (1720) | Lost 0-2 | -141527 |
| 7sealed | 129 | Graells, Dany (1573) | Lost 0-2 | -181509 |
| 8sealed | 221 | Messow, Philip (1918) | Lost 1-2 | -111498 |
| top | average opponent: 1711record: 4-3 | new rating: 1498 | ||
| Grand Prix Lille 2018 (GRN standard) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 230 | Korevaar, Martijn (1667) | Lost 1-2 | -151452 |
| 3standard | 380 | Lino Barbosa, Andre (1504) | Won 2-1 | +191471 |
| 4standard | 307 | Kracman, Jiri (1540) | Lost 0-2 | -161455 |
| 5standard | 499 | Castro, Eduardom (1489) | Lost 0-2 | -181437 |
| 6standard | 525 | Bolota, Julien (1482) | Lost 0-2 | -171420 |
| 7standard | 479 | Mori, Roger (1351) | Won 2-0 | +171437 |
| 8standard | 406 | Gergo, Tamas (1450) | Won 2-0 | +181455 |
| top | average opponent: 1498record: 3-4 | new rating: 1455 | ||
| Grand Prix Brussels 2018 (M19 standard) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 62 | Pistorius, Raphael (1605) | Lost 1-2 | -151463 |
| 3standard | 355 | Carino, Anthony (1556) | Won 2-0 | +191482 |
| 4standard | 332 | Pastukhov, Sergiy (1620) | Lost 1-2 | -151467 |
| 5standard | 328 | Ribiere, Jim (1332) | Won 2-0 | +151482 |
| 6standard | 206 | Mery, Theau (1731) | Won 2-1 | +231505 |
| 7standard | 125 | Edvardsson, Benny (1566) | Won 2-0 | +191524 |
| 8standard | 170 | Harding, Tommy (1719) | Won 2-1 | +211545 |
| 9standard | 42 | Kuisma, Matti (2038) | Lost 0-2 | -91536 |
| 10standard | 103 | De Regt, Ellert (1539) | Lost 1-2 | -181518 |
| 11standard | 117 | Eloranta, Joonas (1673) | Lost 1-2 | -151503 |
| 12standard | 109 | Weis, Sandra (1513) | Won 2-0 | +181521 |
| 13standard | 107 | Mendez Rodriguez, Eduardo (1569) | Lost 0-2 | -171504 |
| 14standard | 101 | Van Der Staak, Daniel (1571) | Lost 1-2 | -171487 |
| 15standard | 101 | Kelterbaum, Richard (1375) | Lost 0-2 | -201467 |
| top | average opponent: 1600record: 6-8 | new rating: 1467 | ||
| Grand Prix Amsterdam 2017 (AKH standard) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 20 | Belin, Marc (1463) | Lost 0-2 | -191506 |
| 4standard | 359 | Lesch, Andreas (1736) | Lost 1-2 | -141492 |
| 5standard | 379 | Van Der Zee, Youri (1533) | Won 2-1 | +191511 |
| 6standard | 326 | Fiala-Ibitz, Sebastian (1811) | Lost 0-2 | -131498 |
| 7standard | 320 | Taylor, Ceri (1428) | Won 2-1 | +171515 |
| 8standard | 233 | Arevalo, David (1457) | Lost 0-2 | -191496 |
| 9standard | 295 | Klein Kiskamp, Peter Jan (1532) | Lost 0-2 | -181478 |
| top | average opponent: 1566record: 2-5 | new rating: 1478 | ||
| Grand Prix Barcelona 2017 (AER standard) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 203 | Corbera Bellalta, Marc (1759) | Lost 0-2 | -141524 |
| 2standard | 331 | Grimes, Joshua (1498) | Won 2-0 | +181542 |
| 3standard | 369 | Splendori, Giuseppe (1510) | Lost 0-2 | -191523 |
| 4standard | 474 | Rojas Montiel, Rodrigo (1484) | Lost 1-2 | -191504 |
| 5standard | 546 | Montoro, Enric (1413) | Won 2-1 | +171521 |
| 6standard | 526 | Brucker, David (2045) | Won 2-1 | +261547 |
| 7standard | 382 | Kelterbaum, Richard (1292) | Lost 1-2 | -221525 |
| top | average opponent: 1572record: 3-4 | new rating: 1525 | ||
| Grand Prix Utrecht 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 132 | Galand, Nathan (1496) | Won 2-0 | +181518 |
| 2standard | 147 | Wilan, Radoslaw (1528) | Lost 0-2 | -181500 |
| 3standard | 443 | Chapman, Craig (1706) | Lost 1-2 | -141486 |
| 4standard | 544 | Hartogs, Cor (1626) | Won 2-0 | +201506 |
| 5standard | 347 | Rogiers, Nick (1435) | Won 2-1 | +171523 |
| 6standard | 238 | Linden, Carsten (1876) | Lost 1-2 | -121511 |
| 7standard | 354 | Sabuncu, Ahmet Onur (1466) | Won 2-0 | +171528 |
| 8standard | 303 | Pluymaekers, Twan (1526) | Won 2-0 | +181546 |
| 9standard | 189 | Eckrodt, Dennis (1485) | Won 2-1 | +171563 |
| 10standard | 130 | Korver, Joris (1648) | Won 2-0 | +201583 |
| 11standard | 110 | Rogiers, Sander (1612) | Lost 1-2 | -181565 |
| 12standard | 150 | Van Heck, Ruben (1572) | Lost 0-2 | -181547 |
| 13standard | 159 | Otte, Jasper (1676) | Won 2-1 | +211568 |
| 14standard | 107 | Labahn, Nikolas (1830) | Lost 0-2 | -141554 |
| 15standard | 141 | Yurochko, Nikita (1652) | Lost 1-2 | -161538 |
| top | average opponent: 1609record: 8-7 | new rating: 1538 | ||