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Individual Calculations September 2009 |
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| Hortillosa, Andres Total change: -28.50 | |   |
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| 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2109 | 2143 | 2.00 | 7 | -1.84 | 15 | -27.60 | |
|  Mackinnon, Keith | | | 2145 | CAN | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Boor, Carl B | f | | 2291 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Ng, Gary K W | | | 2085 | CAN | 0.00 | 1 | -0.58 | 15 | -8.70 | |  Gutman, Joshua | | | 2138 | USA | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Gershenov, Ben | | | 1987 | USA | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Strenzwilk, Denis | | | 2079 | USA | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Undrahbuyan, Baasa | | | 2035 | MGL | 0.50 | 1 | -0.15 | 15 | -2.25 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2195 | 2115 | 1.50 | 4 | -0.06 | 15 | -0.90 | |
| | Studen, Damir | | | 2219 | USA | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Lau, Robert | c | | 2173 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Parry, Matt J | | | 2219 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Patchell, Erik | | | 2169 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | |
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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