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Individual Calculations March 2010 |
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| Yang, Darwin Total change: 28.95 | |   |
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| 19th Annual North American Open | Las Vegas, Nevada | USA | 2009-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2116 | 2317 | 4.50 | 6 | 0.03 | 15 | 0.45 | |
|  Kelley, Dereque D | | | 2157 | USA | 0.00 | 1 | -0.71 | 15 | -10.65 | |  Zhang, Eric R | | | 1917 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Larson, Gerald A | | | 2140 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Huang, Vincent | | | 2078 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Somogyi, Istvan | f | | 2175 | HUN | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Schill, William J | f | | 2229 | USA | 0.50 | 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) | | | | Golden State Open | Concord, California | USA | 2010-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2380 | 2349 | 4.50 | 7 | 1.28 | 15 | 19.20 | |
| | Kelley, Dereque D | | | 2138 | USA | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Lenderman, Alex | m | | 2560 | USA | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Troff, Kayden W | | | 2227 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Landaw, Julian W | | | 2288 | USA | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Friedel, Joshua E | g | | 2549 | USA | 0.50 | 1 | 0.26 | 15 | 3.90 | | | De Guzman, Ricardo | m | | 2406 | PHI | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Shankland, Samuel | m | | 2491 | 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) | | | | 2010 South Houston Open | Houston, Texas | USA | 2010-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2400 | 2349 | 1.50 | 2 | 0.62 | 15 | 9.30 | |
| | Land, Chris K | f | | 2246 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Bachmann, Axel | g | | 2553 | PAR | 0.50 | 1 | 0.26 | 15 | 3.90 | |
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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