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Individual Calculations September 2011 |
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| Machin, Mark Total change: 20.85 | |   |
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| Puerto Rico National Championship 2011 | San Juan | PUR | 2011-06-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2130 | 2255 | 6.00 | 8 | 0.80 | 15 | 12.00 | |
|  Rios Maldonado, Javier | | | 1855 * | PUR | 1.00 | 1 | 0.08 | 15 | 1.20 | |  Aneses Bocanegra, Omar | | | 1967 | PUR | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Davila Vega, Juan R | | | 2186 | PUR | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Almedina Ortiz, Edgardo J | f | | 2228 | PUR | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Berrios Echevarria, Gabriel | f | | 2229 | PUR | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Sosa Trani, Luis | f | | 2106 | PUR | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Montalvo Rosario, Alejandro | m | | 2248 | PUR | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Vazquez Reyes, Raul | c | | 2217 | PUR | 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) | | | | 39th Annual World Open - U2400 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2222 | 2255 | 5.50 | 9 | 0.59 | 15 | 8.85 | |
| | Shahade, Michael | f | | 2266 | USA | 0.50 | 1 | 0.02 | 15 | 0.30 | | | Omori, Michael | | | 2225 | USA | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Resika, Nathan | f | | 2162 | USA | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Belliard, Luis | | | 2222 | DOM | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Vilenchuk, Michael | | | 2186 | USA | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Dominguez, Jose | m | | 2322 | DOM | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Plunkett, Robert | | | 2122 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Reverby, Miro | | | 2143 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Burnett, Ronald | m | | 2347 | USA | 0.00 | 1 | -0.37 | 15 | -5.55 | |
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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