Brinkforth, Jan-Hendrik
Current rating: 1443
Record: 14-23-1
| Grand Prix Lyon 2020 (THB standard) | starting rating: 1407 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 51 | Koch, Florian (1645) | Lost 0-2 | -131394 |
| 4standard | 106 | Augustin, Tony (1444) | Won 2-1 | +191413 |
| 5standard | 45 | Servagent, Matthieu (1446) | Won 2-0 | +181431 |
| 6standard | 66 | Leteve, Jeremy (1548) | Draw 1-1 | +21433 |
| 7standard | 56 | Marchi, Gregory (1653) | Won 1-0 | +221455 |
| 8standard | 35 | De Haan, Rob (1813) | Lost 1-2 | -121443 |
| top | average opponent: 1592record: 3-2-1 | new rating: 1443 | ||
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1421 | |||
| round | table | opponent (rating) | result | Δrating |
| 3pioneer | 100 | Hansen, Even (1535) | Lost 1-2 | -161405 |
| 4pioneer | 221 | Entreinger, Robin (1618) | Lost 1-2 | -141391 |
| 5pioneer | 506 | Mundel, Robert (1850) | Won 2-0 | +261417 |
| 6pioneer | 305 | Gauthier, Martin-Eric (1913) | Lost 1-2 | -101407 |
| top | average opponent: 1729record: 1-3 | new rating: 1407 | ||
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1423 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 256 | Van Der Laan, Mattijs (1535) | Lost 0-2 | -161407 |
| 4sealed | 206 | Werkman, Pascal (1859) | Lost 0-2 | -101397 |
| 5sealed | 395 | Ladygina, Aleksandra (1532) | Won 2-0 | +201417 |
| 6sealed | 387 | Schipstra, Wessel (1529) | Won 2-1 | +201437 |
| 7sealed | 185 | Widmer, Basil (1549) | Lost 1-2 | -161421 |
| top | average opponent: 1601record: 2-3 | new rating: 1421 | ||
| Grand Prix Copenhagen 2019 (MH1 limited) | starting rating: 1423 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 125 | Orthofer, Martin (1609) | Won 2-1 | +211444 |
| 4sealed | 104 | Noordzij, Wouter (1744) | Lost 1-2 | -131431 |
| 5sealed | 204 | van der Vaart, Jasper (1774) | Won 2-0 | +241455 |
| 6sealed | 89 | Novak, Vaclav (1542) | Lost 0-2 | -161439 |
| 7sealed | 182 | Steininger, Vincent (1548) | Lost 0-2 | -161423 |
| top | average opponent: 1643record: 2-3 | new rating: 1423 | ||
| Grand Prix Strasbourg 2019 (RNA limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 322 | Lenotte, Luc (1560) | Lost 0-2 | -161450 |
| 4sealed | 205 | Wenger, Marc (1534) | Lost 1-2 | -171433 |
| 5sealed | 366 | Dangleterre, Francois Xavier (1579) | Won 2-1 | +211454 |
| 6sealed | 233 | Van Der Beek, Laurens (1719) | Lost 1-2 | -141440 |
| 7sealed | 407 | Hermant, Francois (1458) | Lost 0-2 | -171423 |
| top | average opponent: 1570record: 1-4 | new rating: 1423 | ||
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 479 | Sigut, Michael (1500) | Won 2-0 | +191467 |
| 2sealed | 846 | Vlcek, Tomas (1801) | Won 2-1 | +241491 |
| 3sealed | 252 | Janda, Zbynek (1521) | Lost 1-2 | -171474 |
| 4sealed | 654 | Kaufmann, Michael (1585) | Lost 0-2 | -161458 |
| 5sealed | 788 | Delbarre, Raphael (1631) | Won 2-1 | +211479 |
| 6sealed | 581 | Araque, Francisco (1752) | Lost 0-2 | -131466 |
| top | average opponent: 1632record: 3-3 | new rating: 1466 | ||
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Kirichenko, Dmytro (1500) | Lost 0-2 | -171447 |
| 2sealed | 593 | Kettula, Joel (1480) | Won 2-1 | +181465 |
| 3sealed | 459 | Kubeile, Arne (1522) | Lost 1-2 | -171448 |
| top | average opponent: 1501record: 1-2 | new rating: 1448 | ||
| Grand Prix Lille 2018 (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 70 | Gadeyne, Kenneth (1325) | Lost 0-2 | -211479 |
| 4standard | 209 | Carloz, Philippe (1624) | Lost 0-2 | -161463 |
| 5standard | 365 | Ribeiro, Andre (1396) | Won 2-0 | +171480 |
| 6standard | 401 | De Canck, Steven (1587) | Lost 0-2 | -161464 |
| top | average opponent: 1483record: 1-3 | new rating: 1464 | ||