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Individual Calculations February 2019 |
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| Boardman, Jeffrey Total change: 3.80 | |   |
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| Hastings Masters 2018-19 | Hastings | ENG | 2018-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1605 | 2005 | 1.00 | 1 | 0.08 | 20 | 1.60 | |
|  Park, Sijoon | | | 1605 * | KOR | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | | | Gibraltar International Chess Festival 2019 Challengers A | Gibraltar | ENG | 2019-01-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2025 | 2005 | 2.50 | 5 | 0.11 | 20 | 2.20 | |
|  Torres, Federico | | | 2196 | ARG | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Crocker, Philip J | | | 2109 | ENG | 0.50 | 1 | 0.14 | 20 | 2.80 | | | Nandi, Robin J | | | 1903 | ENG | 0.00 | 1 | -0.64 | 20 | -12.80 | | | Sikkel, Dirk | | | 1943 | NED | 1.00 | 1 | 0.41 | 20 | 8.20 | | | Adewole, Adeyinka | | | 1972 | NGR | 1.00 | 1 | 0.45 | 20 | 9.00 | |
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) | | |
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