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Individual Calculations September 2023 |
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| Duijker, Rick Total change: 27.80 | |   |
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| Dutch Open Championship 2023 | Dieren | NED | 2023-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2151 | 2198 | 5.00 | 9 | -0.08 | 20 | -1.60 | |
|  Van Kuijk, Vadim | | | 1997 | NED | 0.00 | 1 | -0.76 | 20 | -15.20 | |  Brouwer, Tim | | | 2107 | NED | 1.00 | 1 | 0.38 | 20 | 7.60 | | | Schuricht, Emil Frederick | | | 2018 | GER | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Op Den Dries, Johan | | | 2093 | NED | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Zwirs, Nico | m | | 2443 | NED | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Koster, Chiel | | | 2052 | NED | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Labruyere, Roger | | | 2191 | NED | 0.00 | 1 | -0.51 | 20 | -10.20 | | | Bus, Tom | | | 2100 | NED | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Maatman, Nick | m | | 2362 | NED | 0.50 | 1 | 0.22 | 20 | 4.40 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | HZ University of Applied Sciences Chess Tournament 2023 | Vlissingen | NED | 2023-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2198 | 6.00 | 9 | 1.47 | 20 | 29.40 | |
| | Van De Griend, Johan | | | 1798 * | NED | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Smeets, Sjo | | | 1901 | NED | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Ikonnikov, Vyacheslav | g | | 2447 | FID | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Galle, Andre | | | 1978 | BEL | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Manshanden, Nick | | | 2040 | NED | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Rodriguez Fontecha, Marcos | f | | 2309 | ESP | 1.00 | 1 | 0.65 | 20 | 13.00 | | | Vrolijk, Liam | g | | 2558 | NED | 0.50 | 1 | 0.40 | 20 | 8.00 | | | Zwirs, Nico | m | | 2442 | NED | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Smeets, Kobe | | | 2245 | NED | 0.50 | 1 | 0.07 | 20 | 1.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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