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Individual Calculations May 2012 |
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| Treger, Yefim Total change: -9.15 | |   |
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| 42nd Annual World Amateur Team and US Team East | Parsippany, New Jersey | USA | 2012-02-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2473 | 2194 | 0.50 | 3 | -0.01 | 15 | -0.15 | |
|  Margvelashvili, Giorgi | g | | 2531 | GEO | 0.50 | 1 | 0.38 | 15 | 5.70 | |  Mandizha, Farai | f | | 2406 | ZIM | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Arnold, Marc Tyler | m | | 2482 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | |
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) | | | | 2012 Marshall March Grand Prix | New York, New York | USA | 2012-03-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2029 | 2206 | 3.00 | 4 | 0.21 | 15 | 3.15 | |
| | Aregbeyen, Aigboje | | | 1806 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Robinson, Darrian | | | 1947 | USA | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Sarkar, Justin | m | | 2391 | USA | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Adelson, Serge | | | 1971 | USA | 1.00 | 1 | 0.21 | 15 | 3.15 | | | * 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) | | | | 2012 March-April FIDE Monday | New York, New York | USA | 2012-03-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2239 | 2206 | 1.50 | 4 | -0.31 | 15 | -4.65 | |
| | Resika, Nathan | f | | 2145 | USA | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Bonin, Jay Richard | m | | 2313 | USA | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Hoffmann, Asa | f | | 2239 | USA | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Allicock, Rawle A | f | | 2259 | ENG | 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) | | | | Long Island Open | Ronkonkoma, New York | USA | 2012-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2210 | 2206 | 0.50 | 2 | -0.50 | 15 | -7.50 | |
| | Robinson, Darrian | | | 1947 | USA | 0.50 | 1 | -0.32 | 15 | -4.80 | | | Kekelidze, Mikheil | g | | 2473 | GEO | 0.00 | 1 | -0.18 | 15 | -2.70 | |
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) | | |
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