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Individual Calculations September 2009 |
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| Strenzwilk, Denis Total change: -30.75 | |   |
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| 2009 Chesapeake Open | Baltimore, Maryland | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2133 | 2079 | 0.00 | 2 | -0.86 | 15 | -12.90 | |
|  Kahn, Aaron E | | | 2192 | USA | 0.00 | 1 | -0.35 | 15 | -5.25 | |  Harris, Ian | | | 2074 | USA | 0.00 | 1 | -0.51 | 15 | -7.65 | |
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) | | | | 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2168 | 2079 | 2.50 | 8 | -0.57 | 15 | -8.55 | |
| | Hutchinson, Antoine | | | 2185 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Zierk, Steven C | | | 2296 | USA | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Hilton, Jonathan L | | | 2220 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Amarasinghe, Prashantha | | | 1930 | SRI | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Savage, Allan G | f | | 2182 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Ng, Andrew | | | 2103 | USA | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Hortillosa, Andres | | | 2143 | USA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Madsen, Dag | f | | 2282 | NOR | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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 |
| 1984 | 2072 | 0.00 | 1 | -0.62 | 15 | -9.30 | |
| | Mayers, Dan E | | | 1984 | USA | 0.00 | 1 | -0.62 | 15 | -9.30 | |
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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