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Individual Calculations February 2018 |
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| Elgersma, Onno Total change: 138.40 | |   |
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| Chess Festival Groningen 2017 - Open A | Groningen | NED | 2017-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2158 | 1935 | 3.50 | 9 | 1.44 | 40 | 57.60 | |
|  Stoyanov, Tsvetan | f | | 2242 | FID | 0.00 | 1 | -0.14 | 40 | -5.60 | |  Rigopoulos-Tsigkos, Alexan | | | 2117 | GRE | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Wedda, Dries | | | 2157 | NED | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Beukema, Jasper | f | | 2233 | BEL | 0.00 | 1 | -0.15 | 40 | -6.00 | | | Bekedam, Tyro | | | 2073 | NED | 1.00 | 1 | 0.69 | 40 | 27.60 | | | Dehn, Marcus | | | 2120 | GER | 0.50 | 1 | 0.24 | 40 | 9.60 | | | Godbole, Atharva | | | 2178 | IND | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Kalle, Erwin | | | 1994 | NED | 1.00 | 1 | 0.58 | 40 | 23.20 | | | Sapale, Saloni | | wc | 2308 | IND | 0.50 | 1 | 0.40 | 40 | 16.00 | |
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 2018 | Wijk aan Zee | NED | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2024 | 1926 | 2.00 | 3 | 0.89 | 40 | 35.60 | |
| | Merx, Bob | | | 2059 | NED | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Dizdar, Orkun | | | 1951 | TUR | 1.00 | 1 | 0.53 | 40 | 21.20 | | | Van Otten, Gerard | | | 2061 | NED | 1.00 | 1 | 0.68 | 40 | 27.20 | |
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 Dagvierkampen 2018 | Wijk aan Zee | NED | 2018-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1973 | 1926 | 2.00 | 2 | 1.13 | 40 | 45.20 | |
| | Bolhuis, Ridens | | | 1916 | NED | 1.00 | 1 | 0.49 | 40 | 19.60 | | | Holscher, Peter | | | 2030 | NED | 1.00 | 1 | 0.64 | 40 | 25.60 | |
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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