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Individual Calculations October 2008 |
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| Parry, Matt J Total change: -8.55 | |   |
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| 36th Annual World Open (U2400 Section) | Philadelphia, Pennsylvania | USA | 2008-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2240 | 2265 | 4.00 | 7 | 0.28 | 15 | 4.20 | |
|  Harris, David | | | 2108 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Williams, Christopher | | | 2189 | USA | 0.00 | 1 | -0.60 | 15 | -9.00 | |  Aravena Sloan, Peter J | | | 2240 | USA | 0.00 | 1 | -0.53 | 15 | -7.95 | | | Odondoo, Ganbold | m | | 2380 | MGL | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Andrews, Todd D | f | | 2311 | USA | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Renteria, Jorge | f | | 2266 | COL | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Williams, Christopher | | | 2189 | USA | 1.00 | 1 | 0.40 | 15 | 6.00 | |
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) | | | | 109th Annual US Open | Dallas, Texas | USA | 2008-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2320 | 2270 | 2.00 | 3 | 0.70 | 15 | 10.50 | |
| | Fernandez, Daniel | m | | 2401 | USA | 1.00 | 1 | 0.68 | 15 | 10.20 | | | Milovanovic, Rade | m | | 2390 | USA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Braunlich, Thomas | | | 2169 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | |
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) | | | | 2008 Denker Tournament of High School Champions | Dallas, Texas | USA | 2008-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2238 | 2270 | 1.50 | 3 | -0.13 | 15 | -1.95 | |
| | Lau, Robert | c | | 2151 | USA | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Low, Scott T | | | 2229 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Yeager, Daniel A | f | | 2335 | USA | 0.00 | 1 | -0.41 | 15 | -6.15 | |
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) | | | | 130th Annual New York State Championship | Albany, New York | USA | 2008-08-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 2270 | 1.00 | 3 | -1.42 | 15 | -21.30 | |
| | Rabin, Evan Z | | | 1985 | USA | 0.00 | 1 | -0.84 | 15 | -12.60 | | | Ostrovskiy, Aleksandr | c | | 2083 | USA | 0.00 | 1 | -0.74 | 15 | -11.10 | | | Gershenov, Ben | | | 1990 | USA | 1.00 | 1 | 0.16 | 15 | 2.40 | |
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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