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Individual Calculations June 2013 |
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| Davidson, Kevin Total change: 21.60 | |   |
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| 7th Annual Philadelphia Open - Under 2200 Section | Philadelphia, Pennsylvania | USA | 2013-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2074 | 2245 | 3.00 | 3 | 0.84 | 30 | 25.20 | |
|  Opaska, Michael P | | | 2022 | USA | 1.00 | 1 | 0.22 | 30 | 6.60 | |  Yang, Charles | | | 2068 | USA | 1.00 | 1 | 0.27 | 30 | 8.10 | | | Fischer, Robert J | | | 2132 | USA | 1.00 | 1 | 0.35 | 30 | 10.50 | |
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) | | | | 2013 MCC April-May FIDE Monday | New York, New York | USA | 2013-04-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1984 | 2245 | 1.50 | 2 | -0.12 | 30 | -3.60 | |
| | Cohn, Zachary H | | | 2051 | USA | 0.50 | 1 | -0.25 | 30 | -7.50 | | | Scher, Edward | | | 1917 | USA | 1.00 | 1 | 0.13 | 30 | 3.90 | |
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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