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Individual Calculations September 2009 |
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| Fuentes, Romulo Total change: 22.80 | |   |
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| Summer Tuesday Night Marathon | San Francisco, California | USA | 2009-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1949 | 2113 | 4.00 | 4 | 1.28 | 15 | 19.20 | |
|  Dembling, Arthur | | | 1763 | USA | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Todortsev, Victor | | | 1763 | USA | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Wong, Russell | | | 2153 | USA | 1.00 | 1 | 0.56 | 15 | 8.40 | |  Rozenvasser, Anthony | | | 2116 | USA | 1.00 | 1 | 0.50 | 15 | 7.50 | |
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) | | | | 14th Annual Pacific Coast Open | Agoura Hills, California | USA | 2009-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2192 | 2116 | 2.50 | 5 | 0.39 | 15 | 5.85 | |
| | Khachiyan, Melikset | g | | 2516 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Sandberg, Evan M | | | 2146 | USA | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Stevens, Lawrence | | | 2089 | USA | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Borgen, Richard L | | | 2128 | USA | 0.00 | 1 | -0.48 | 15 | -7.20 | | | Yee, Michael A | | | 2079 | USA | 1.00 | 1 | 0.45 | 15 | 6.75 | | | * 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) | | | | 2009 Central California Open | Fresno, California | USA | 2009-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2063 | 2116 | 1.00 | 2 | -0.15 | 15 | -2.25 | |
| | Kudryavtsev, Vadim | | | 2147 | RUS | 0.50 | 1 | 0.04 | 15 | 0.60 | | | Haring, Ruth I | | wm | 1978 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | |
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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