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Individual Calculations May 2010 |
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| Gutman, Joshua Total change: 9.00 | |   |
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| 17th Annual Western Class Championships | Agoura Hills, California | USA | 2010-03-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2213 | 2126 | 0.50 | 3 | -0.64 | 15 | -9.60 | |
|  Breckenridge, Steven J | | | 2220 | USA | 0.50 | 1 | 0.13 | 15 | 1.95 | |  Moon, Ryan | | | 2214 | USA | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Troff, Kayden W | | | 2204 | USA | 0.00 | 1 | -0.39 | 15 | -5.85 | |
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) | | | | Philadelphia Open | Philadelphia, Pennsylvania | USA | 2010-03-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2190 | 2126 | 3.00 | 6 | 0.39 | 15 | 5.85 | |
| | Zapata, Alonso | g | | 2523 | COL | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Hua, David | | | 1972 | USA | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Rodriguez, Eric | | | 2286 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Betaneli, Alex | f | | 2297 | USA | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Ding, Andrew | | | 2037 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Sivakumar, Kavinay | | | 2024 | USA | 0.50 | 1 | -0.14 | 15 | -2.10 | |
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) | | | | 8th Annual Western Pacific Open | Los Angeles, California | USA | 2010-04-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2214 | 2126 | 2.50 | 4 | 0.85 | 15 | 12.75 | |
| | Bur, Alexandre | | | 2053 | SUI | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Abrahamyan, Tatev | | wf | 2295 | USA | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Sevillano, Enrico | m | | 2513 | USA | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Field, Frederick W | | | 1995 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | |
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) | | |
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