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Individual Calculations June 2018 |
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| Brattain, Mika Total change: 2.50 | |   |
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| 27th Annual Eastern Class Championship | Sturbridge, Massachusetts | USA | 2018-04-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2248 | 2399 | 3.00 | 5 | -0.39 | 10 | -3.90 | |
|  Torres, Yelfry | | | 2122 | DOM | 1.00 | 1 | 0.17 | 10 | 1.70 | |  Zhou, Liran | c | | 2098 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Yip, Carissa | f | wf | 2290 | USA | 0.50 | 1 | -0.15 | 10 | -1.50 | | | Sevian, Samuel | g | | 2619 | USA | 0.00 | 1 | -0.22 | 10 | -2.20 | | | Times, Lawyer | | | 2112 | USA | 0.50 | 1 | -0.34 | 10 | -3.40 | |
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) | | | | 87th Massachusetts Open | Marlboro, Massachusetts | USA | 2018-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2188 | 2399 | 5.00 | 6 | 0.64 | 10 | 6.40 | |
| | Yu, Alex | | | 1999 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Li, Jerry | c | | 1999 * | USA | 0.50 | 1 | -0.42 | 10 | -4.20 | | | Kavi, Nithin | | | 2008 | USA | 1.00 | 1 | 0.09 | 10 | 0.90 | | | Ivanov, Alexander | g | | 2488 | USA | 1.00 | 1 | 0.62 | 10 | 6.20 | | | Vigorito, David | m | | 2356 | USA | 1.00 | 1 | 0.44 | 10 | 4.40 | | | Solon, Nathan | f | | 2276 | USA | 0.50 | 1 | -0.17 | 10 | -1.70 | | | * 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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