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Individual Calculations September 2009 |
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| Hollinberger, Drew Total change: 20.25 | |   |
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| 2nd Annual Chicago Class Championships | Oak Brook, Illinois | USA | 2009-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2135 | 1960 | 1.00 | 4 | -0.11 | 15 | -1.65 | |
|  Karklins, Andrew | f | | 2205 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | |  Szpisjak, Steven J | | | 2183 | USA | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Tuhrim, Richard J | | | 2042 | USA | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Caveney, Geoffrey | | | 2110 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2242 | 1960 | 2.50 | 6 | 1.46 | 15 | 21.90 | |
| | Mulyar, Michael A | m | | 2360 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Mills, James A | | | 2152 | USA | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Castaneda, Nelson | f | | 2282 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Johnstone, Glenn | f | | 2272 | CAN | 0.50 | 1 | 0.36 | 15 | 5.40 | | | Ellis, James S | | | 2095 | USA | 1.00 | 1 | 0.68 | 15 | 10.20 | | | Shapiro, Daniel E | f | | 2291 | USA | 0.00 | 1 | -0.12 | 15 | -1.80 | | | * 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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