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Individual Calculations March 2011 |
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| Dahl, Matthew D Total change: -13.95 | |   |
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| 2010 Pan American Open | Milwaukee, Wisconsin | USA | 2010-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2192 | 2121 | 1.00 | 2 | 0.13 | 15 | 1.95 | |
|  Schmakel, Sam A | | | 1937 | USA | 1.00 | 1 | 0.26 | 15 | 3.90 | |  Vojinovic, Goran | m | | 2446 | SRB | 0.00 | 1 | -0.13 | 15 | -1.95 | |
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) | | | | Chess.MN 5th FIDE Open Rating Tournament | Minneapolis,MN | USA | 2011-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2104 | 2121 | 2.00 | 2 | 0.96 | 15 | 14.40 | |
| | Iwu, Okechukwu A | | | 2198 | USA | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Amarasinghe, Prashantha | | | 2009 | SRI | 1.00 | 1 | 0.35 | 15 | 5.25 | |
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) | | | | 43rd Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2011-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2098 | 2121 | 0.00 | 3 | -1.59 | 15 | -23.85 | |
| | Bodek, Michael H | | | 2163 | USA | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Itkis, Hana | | wf | 2084 | USA | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Gershenov, Ben | | | 2047 | USA | 0.00 | 1 | -0.60 | 15 | -9.00 | |
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) | | | | 43rd Annual Liberty Bell - U2300 Section | Philadelphia, Pennsylvania | USA | 2011-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2107 | 2121 | 0.00 | 2 | -1.04 | 15 | -15.60 | |
| | Vilenchuk, Michael | | | 2169 | USA | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Lucente, Mike | | | 2044 | 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 |
| 2144 | 2121 | 2.00 | 3 | 0.61 | 15 | 9.15 | |
| | Nagle, Sean M | f | | 2379 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Tang, Andrew | | | 1854 | USA | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Iwu, Okechukwu A | | | 2198 | USA | 1.00 | 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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