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Individual Calculations April 2009 |
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| Lee, Andy Total change: 17.40 | |   |
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| Fall TNM (MI Club Championship) | San Francisco, CA | USA | 2008-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2150 | 2240 | 1.00 | 1 | 0.38 | 15 | 5.70 | |
|  Nip, Nicholas | | | 2150 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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 Berkeley International | Berkeley, California | USA | 2008-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2307 | 2240 | 1.50 | 2 | 0.69 | 15 | 10.35 | |
|  Evans, Bela | f | | 2258 | USA | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Kustar, Sandor | m | | 2356 | HUN | 1.00 | 1 | 0.66 | 15 | 9.90 | |
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) | | | | 16th Annual Western Class Championshipw | Agoura Hills, California | USA | 2009-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2254 | 2240 | 3.00 | 5 | 0.58 | 15 | 8.70 | |
| | Gutman, Joshua | | | 2133 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Hansen, Eric | f | | 2376 | CAN | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Akopian, Robert | | | 2114 | USA | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Yanayt, Eugene | f | | 2225 | USA | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Pruess, David | m | | 2422 | USA | 1.00 | 1 | 0.74 | 15 | 11.10 | |
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) | | | | 26th Annual U.S Amateur Team West | Woodland Hills, CA | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2238 | 2240 | 2.00 | 3 | 0.49 | 15 | 7.35 | |
| | Bryant, John Daniel | | | 2240 | USA | 0.00 | 1 | -0.50 | 15 | -7.50 | | | Hurdle Jr, Robert | | | 2218 | USA | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Maki, James J | f | | 2256 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | |
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) | | | | Western Chess Congress | Concord, California | USA | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2248 | 2240 | 0.00 | 2 | -0.98 | 15 | -14.70 | |
| | Naroditsky, Daniel | f | | 2362 | USA | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Gutman, Joshua | | | 2133 | USA | 0.00 | 1 | -0.65 | 15 | -9.75 | |
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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