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Individual Calculations July 2009 |
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| Barnett, Alexander Total change: -2.55 | |   |
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| 2009 UMBC Open - Alvin S Mintzes Chess Tournament | Catonsville, Maryland | USA | 2009-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2241 | 2233 | 2.00 | 3 | 0.46 | 15 | 6.90 | |
|  Defibaugh, Jared | | | 2100 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | |  Bryant, Todd C | | | 2042 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Gareev, Timur | g | | 2581 | UZB | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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) | | | | 11th Annual Foxwoods Open | Mashantucket, Connecticut | USA | 2009-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2140 | 2239 | 1.00 | 4 | -1.50 | 15 | -22.50 | |
| | Gershenov, Ben | | | 1987 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Gorman, Dov | f | | 2289 | USA | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Moon, Ryan Joseph | | | 2228 | USA | 0.00 | 1 | -0.52 | 15 | -7.80 | | | Pressman, Leif | | | 2057 | USA | 0.00 | 1 | -0.74 | 15 | -11.10 | |
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) | | | | 18th Annual Chicago Open - U2300 Section | Wheeling, Illinois | USA | 2009-05-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2239 | 2.00 | 2 | 0.87 | 15 | 13.05 | |
| | Pappu, Ananth | | | 2149 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Karklins, Andrew | f | | 2232 | USA | 1.00 | 1 | 0.49 | 15 | 7.35 | |
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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