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Individual Calculations April 2009 |
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| Iwamoto, Takashi Total change: 15.00 | |   |
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| 18th Annual North American Open | Las vegas, Nevada | USA | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2274 | 2245 | 2.50 | 5 | 0.23 | 15 | 3.45 | |
|  Harmon-Vellotti, Luke | | | 1978 | USA | 1.00 | 1 | 0.18 | 15 | 2.70 | |  Mulyar, Michael A | m | | 2395 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Moon, Ryan J | | | 2213 | USA | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Adamson, Robby | f | | 2324 | USA | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Matikozyan, Andranik | m | | 2462 | ARM | 0.00 | 1 | -0.22 | 15 | -3.30 | |
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) | | | | 26th Annual U.S Amateur Team West | Woodland Hills, CA | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2132 | 2245 | 4.00 | 5 | 0.77 | 15 | 11.55 | |
| | Hough, Randall D | | | 2000 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Schoonmaker, Nicholas | c | | 2217 | USA | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Tanaka, Christian | | | 2180 | USA | 1.00 | 1 | 0.41 | 15 | 6.15 | | | Zimbeck, David | | | 2192 | USA | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Yee, Michael | | | 2071 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | |
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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