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Individual Calculations October 2008 |
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| Treger, Yefim Total change: 0.30 | |   |
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| NY Marshall CC International | New York, NY | USA | 2008-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2292 | 2207 | 3.50 | 9 | 0.00 | 15 | 0.00 | |
|  Almeida, Alfonso A | m | | 2424 | MEX | 0.00 | 1 | -0.22 | 15 | -3.30 | |  Greenberg, Roy | | | 2245 | USA | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Bonin, Jay | m | | 2368 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Sarkar, Justin | m | | 2411 | USA | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Tyehimba, Bem | | | 2240 | USA | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Panico, Iii Nick F | | | 2070 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Medina, Rodelay | | | 2232 | USA | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Ginsburg, Mark | m | | 2365 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Khariton, Lev | | | 2270 | FRA | 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) | | | | NY August Open | New York, NY | USA | 2008-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2079 | 2218 | 2.00 | 3 | -0.06 | 15 | -0.90 | |
| | Berg, George P | | | 2086 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Ostrovskiy, Aleksandr | c | | 2083 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Sturt, Raven M | | | 2067 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | |
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 |
| 2059 | 2218 | 2.50 | 4 | -0.29 | 15 | -4.35 | |
| | Lopez, Felix G | | | 1943 | USA | 0.50 | 1 | -0.33 | 15 | -4.95 | | | Kwartler, Lonnie S | | | 2224 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Rabin, Evan Z | | | 1985 | USA | 0.50 | 1 | -0.29 | 15 | -4.35 | | | Ostrovskiy, Aleksandr | c | | 2083 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | |
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) | | | | New York September Open | New York, New York | USA | 2008-09-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2218 | 2.50 | 4 | 0.37 | 15 | 5.55 | |
| | Kats, Alena | | | 1969 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Bonin, Jay R | m | | 2385 | USA | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Fittzko, Mitchell | | | 2139 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Margulis, Yevgeni | | | 2271 | USA | 0.00 | 1 | -0.43 | 15 | -6.45 | |
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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