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Individual Calculations October 2008 |
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| Gutman, Joshua Total change: -0.60 | |   |
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| Southern California Championship Candidates | Garden Grove, California | USA | 2008-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2165 | 2112 | 1.00 | 3 | -0.28 | 15 | -4.20 | |
|  Peters, Jack | m | | 2416 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | |  Lazarus, Barry J | | | 1803 | USA | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Akopyan, Harutyun | f | | 2277 | USA | 0.00 | 1 | -0.28 | 15 | -4.20 | |
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) | | | | 48th Annual Pacific Southwest Open | Los Angeles, CA | USA | 2008-07-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2052 | 2125 | 1.00 | 2 | -0.20 | 15 | -3.00 | |
| | Higa, Randy K | | | 1993 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Ding, Richard | | | 2110 | USA | 0.00 | 1 | -0.52 | 15 | -7.80 | |
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) | | | | 30th Annual Southern California Open | Temecula, California | USA | 2008-08-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2102 | 2125 | 2.00 | 3 | 0.44 | 15 | 6.60 | |
| | Ding, Richard | | | 2110 | USA | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Acon, Jennifer C | | | 1789 | USA | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Peters, Jack | m | | 2408 | USA | 0.50 | 1 | 0.34 | 15 | 5.10 | |
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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