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Individual Calculations October 2008 |
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| Bonin, Jay R Total change: -32.00 | |   |
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| NY Marshall CC International | New York, NY | USA | 2008-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2263 | 2368 | 4.00 | 9 | -1.73 | 10 | -17.30 | |
|  Panico, Iii Nick F | | | 2070 | USA | 0.50 | 1 | -0.35 | 10 | -3.50 | |  Liu, Elliott | f | | 2252 | USA | 0.00 | 1 | -0.66 | 10 | -6.60 | | | Treger, Yefim | | | 2207 | USA | 0.50 | 1 | -0.21 | 10 | -2.10 | | | Greenberg, Roy | | | 2245 | USA | 1.00 | 1 | 0.33 | 10 | 3.30 | | | Zenyuk, Iryna | c | wf | 2233 | USA | 0.50 | 1 | -0.18 | 10 | -1.80 | | | Zlotnikov, Mikhail | m | | 2353 | USA | 0.50 | 1 | -0.02 | 10 | -0.20 | | | Critelli, James | f | | 2343 | USA | 0.50 | 1 | -0.03 | 10 | -0.30 | | | Mac, Intyre Paul | f | | 2291 | USA | 0.50 | 1 | -0.11 | 10 | -1.10 | | | Scekic, Milos | m | | 2371 | SRB | 0.00 | 1 | -0.50 | 10 | -5.00 | |
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) | | | | 36th Annual World Open (U2400 Section) | Philadelphia, Pennsylvania | USA | 2008-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2262 | 2368 | 6.00 | 9 | 0.24 | 10 | 2.40 | |
| | Markzon, Gregory | f | | 2152 | USA | 0.50 | 1 | -0.28 | 10 | -2.80 | | | Weeramantry, Sunil | f | | 2224 | SRI | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Moncayo, Evelyn | | wm | 2182 | ECU | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Galofre, Charles A | f | | 2318 | USA | 0.50 | 1 | -0.07 | 10 | -0.70 | | | Boor, Carl B | | | 2308 | USA | 0.50 | 1 | -0.08 | 10 | -0.80 | | | Figler, Ilye | f | | 2341 | USA | 0.50 | 1 | -0.04 | 10 | -0.40 | | | Tuvshintugs, Batchimeg | | wm | 2278 | USA | 0.50 | 1 | -0.12 | 10 | -1.20 | | | Barnett, Alexander | | | 2234 | USA | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Rizzitano, James A | m | | 2323 | USA | 0.50 | 1 | -0.06 | 10 | -0.60 | |
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) | | | | 40th Annual Atlantic Open | Washington, DC | USA | 2008-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2245 | 2385 | 3.50 | 5 | 0.15 | 10 | 1.50 | |
| | Margulis, Yevgeni | | | 2271 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Samuelson, Andrew | | | 2128 | USA | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Ng, Gary K | | | 2044 | CAN | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Uesugi, Shinsaku | | | 2227 | JPN | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Stripunsky, Alexander | g | | 2553 | USA | 0.00 | 1 | -0.28 | 10 | -2.80 | |
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) | | | | 130th Annual New York State Championship | Albany, New York | USA | 2008-08-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2111 | 2385 | 3.00 | 5 | -1.02 | 10 | -10.20 | |
| | Lopez, Felix G | | | 2035 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Rabin, Evan Z | | | 2035 | USA | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Aaron, Deepak | | | 2035 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Sarkar, Justin | m | | 2415 | USA | 0.00 | 1 | -0.46 | 10 | -4.60 | | | Nahutin, Yevgeni | | | 2037 | CAN | 0.50 | 1 | -0.39 | 10 | -3.90 | |
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) | | | | New York September Open | New York, New York | USA | 2008-09-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2098 | 2385 | 2.50 | 4 | -0.84 | 10 | -8.40 | |
| | Liu, Jennie S | | | 2035 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Treger, Yefim | | | 2218 | USA | 0.50 | 1 | -0.22 | 10 | -2.20 | | | Katz, Benjamin J | | | 2102 | USA | 0.50 | 1 | -0.34 | 10 | -3.40 | | | Farber, Nelson M | | | 2035 | USA | 0.50 | 1 | -0.39 | 10 | -3.90 | |
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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