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Individual Calculations February 2020 |
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| Elgersma, Onno Total change: -27.40 | |   |
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| Chessfestival Groningen 2019 - Open A | Groningen | NED | 2019-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2157 | 2319 | 4.50 | 8 | -1.10 | 20 | -22.00 | |
|  Boersma, Jan | | | 2069 | NED | 1.00 | 1 | 0.19 | 20 | 3.80 | |  Van Foreest, Lucas | g | | 2526 | NED | 0.00 | 1 | -0.23 | 20 | -4.60 | | | Mollema, Thomas | c | | 2207 | NED | 0.00 | 1 | -0.65 | 20 | -13.00 | | | Berndt, Matthias | | | 2065 | GER | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Van Hoorn, Geert | | | 2032 | NED | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Krasenkova, Ilena | | wm | 2174 | RUS | 0.50 | 1 | -0.19 | 20 | -3.80 | | | Nicolai, Amir | | | 2108 | NED | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Harshini, A | | wf | 2076 | IND | 1.00 | 1 | 0.20 | 20 | 4.00 | |
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) | | | | Tata Steel Weekendvierkampen 2020 | Wijk aan Zee | NED | 2020-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2247 | 2314 | 1.50 | 3 | -0.27 | 20 | -5.40 | |
| | Beukema, Jasper | f | | 2256 | BEL | 1.00 | 1 | 0.42 | 20 | 8.40 | | | Middelhoven, Hein | | | 2232 | NED | 0.50 | 1 | -0.11 | 20 | -2.20 | | | Stolwijk, Colin | | | 2254 | NED | 0.00 | 1 | -0.58 | 20 | -11.60 | |
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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