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Individual Calculations March 2011 |
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| Iwu, Okechukwu A Total change: -23.85 | |   |
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| Chess.MN 5th FIDE Open Rating Tournament | Minneapolis,MN | USA | 2011-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2065 | 2198 | 1.00 | 2 | -0.36 | 15 | -5.40 | |
|  Amarasinghe, Prashantha | | | 2009 | SRI | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Dahl, Matthew D | | | 2121 | USA | 0.00 | 1 | -0.61 | 15 | -9.15 | |
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) | | | | 118th Annual Warren Steinberg Memorial Annual Minnesota Open | Plymouth, Minnesota | USA | 2011-02-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2005 | 2198 | 2.50 | 5 | -1.23 | 15 | -18.45 | |
| | Hortillosa, Andres | | | 1987 | USA | 1.00 | 1 | 0.23 | 15 | 3.45 | |  Powell, Alexander | | | 1944 | USA | 0.00 | 1 | -0.81 | 15 | -12.15 | | | Fellman, Mike | | | 1964 | USA | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Amarasinghe, Prashantha | | | 2009 | SRI | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Dahl, Matthew D | | | 2121 | USA | 0.00 | 1 | -0.61 | 15 | -9.15 | |
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) | | |
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