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Individual Calculations September 2009 |
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| Gurevich, Dmitry Total change: 21.20 | |   |
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| 37th Annual World Open - Open Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2464 | 2494 | 5.00 | 9 | 0.31 | 10 | 3.10 | |
|  Korley, Kassa | | | 2144 | USA | 0.50 | 1 | -0.39 | 10 | -3.90 | |  Tuhrim, Richard J | | | 2144 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Hess, Robert L | m | | 2485 | USA | 0.50 | 1 | -0.01 | 10 | -0.10 | | | Shulman, Yury | g | | 2632 | USA | 0.50 | 1 | 0.19 | 10 | 1.90 | | | Kudrin, Sergey | g | | 2563 | USA | 0.50 | 1 | 0.10 | 10 | 1.00 | | | Morshedi, Ali | f | | 2347 | USA | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Becerra, Julio J | g | | 2609 | USA | 1.00 | 1 | 0.66 | 10 | 6.60 | | | Kacheishvili, Giorgi | g | | 2613 | GEO | 0.00 | 1 | -0.34 | 10 | -3.40 | | | Bareev, Evgeny | g | | 2636 | RUS | 0.00 | 1 | -0.31 | 10 | -3.10 | |
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) | | | | 2nd Annual Chicago Class Championships | Oak Brook, Illinois | USA | 2009-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2323 | 2485 | 4.00 | 5 | 0.50 | 10 | 5.00 | |
| | Vaja, Ashish | | | 2195 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Felecan, Florin | f | | 2399 | USA | 0.50 | 1 | -0.12 | 10 | -1.20 | | | Amanov, Mesgen | g | | 2497 | TKM | 1.00 | 1 | 0.52 | 10 | 5.20 | | | Young, Angelo | m | | 2318 | PHI | 0.50 | 1 | -0.22 | 10 | -2.20 | | | Karklins, Andrew | f | | 2205 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2351 | 2485 | 6.50 | 8 | 1.31 | 10 | 13.10 | |
| | Amarasinghe, Prashantha | | | 2085 * | SRI | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Casden, Alan | | | 2116 | USA | 1.00 | 1 | 0.10 | 10 | 1.00 | | | Bidwell, John C | | | 2258 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Kudrin, Sergey | g | | 2578 | USA | 0.50 | 1 | 0.13 | 10 | 1.30 | | | Shabalov, Alexander | g | | 2580 | USA | 0.50 | 1 | 0.13 | 10 | 1.30 | | | Becerra, Julio J | g | | 2557 | USA | 0.50 | 1 | 0.10 | 10 | 1.00 | | | Dean, Jim H | f | | 2264 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Burnett, Ronald | m | | 2368 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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