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Individual Calculations October 2008 |
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| Zapata, Alonso Total change: 0.70 | |   |
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| La Capital Open | San Juan | PUR | 2008-06-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2128 | 2478 | 3.00 | 3 | 0.33 | 10 | 3.30 | |
|  Rivera, Edwardo | | | 2128 | PUR | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Sotelo-Kohama, Daniel | | | 2128 | PUR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Campiz, Leonardo | | | 2128 | PUR | 1.00 | 1 | 0.11 | 10 | 1.10 | |
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) | | | | 36th Annual World Open (Open Section) | Philadelphia, Pennsylvania | USA | 2008-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2408 | 2478 | 5.00 | 9 | -0.26 | 10 | -2.60 | |
| | Urquhart, Eddie | | | 2202 | CAN | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Bady, Glenn | | | 2229 | USA | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Jussupow, Artur | g | | 2572 | GER | 0.50 | 1 | 0.13 | 10 | 1.30 | | | Venkatesh, Marani | m | | 2450 | IND | 0.50 | 1 | -0.04 | 10 | -0.40 | | | Akobian, Varuzhan | g | | 2601 | USA | 0.00 | 1 | -0.33 | 10 | -3.30 | | | Kleiman, Jake | f | | 2335 | USA | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Kudrin, Sergey | g | | 2549 | USA | 0.00 | 1 | -0.40 | 10 | -4.00 | | | Naroditsky, Daniel | f | | 2242 | USA | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Laxman, Rajaram | m | | 2488 | IND | 0.00 | 1 | -0.49 | 10 | -4.90 | |
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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