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Individual Calculations September 2010 |
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| Karas, Nicholas Total change: 30.25 | |   |
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| 111th Annual US Open - Jerry Hanken Memorial | Irvine, California | USA | 2010-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2222 | 2084 | 2.50 | 5 | 0.85 | 25 | 21.25 | |
|  Helfst, Matt | | | 1933 | USA | 1.00 | 1 | 0.30 | 25 | 7.50 | |  Thaler, Michael | | | 2253 | USA | 0.50 | 1 | 0.22 | 25 | 5.50 | | | Carreto, Giovanni | c | | 2225 | MEX | 1.00 | 1 | 0.69 | 25 | 17.25 | | | Ginsburg, Mark | m | | 2385 | USA | 0.00 | 1 | -0.15 | 25 | -3.75 | | | Hughes, Tyler B | | | 2312 | USA | 0.00 | 1 | -0.21 | 25 | -5.25 | |
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) | | | | 2nd Annual Central California Open | Fresno, California | USA | 2010-08-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2288 | 2084 | 1.50 | 4 | 0.36 | 25 | 9.00 | |
| | Antonio Jr, Rogelio | g | | 2484 * | PHI | 0.50 | 1 | 0.42 | 25 | 10.50 | | | Sevillano, Enrico | m | | 2484 * | USA | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Lapid Shafriri, Gil | | | 2144 | USA | 1.00 | 1 | 0.58 | 25 | 14.50 | | | Phillips, Jeff | | | 2041 | USA | 0.00 | 1 | -0.56 | 25 | -14.00 | | | * 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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