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Individual Calculations July 2011 |
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| Mandelkern, Jeremy Total change: 12.75 | |   |
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| 18th Space Coast Open | Cocoa Beach, Florida | USA | 2011-04-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2310 | 2054 | 0.00 | 1 | -0.19 | 15 | -2.85 | |
|  Rodriguez, Eric O | f | | 2310 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | |
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) | | | | 20th Annual Chicago Open | Wheeling, Illinois | USA | 2011-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2299 | 2059 | 2.50 | 6 | 1.23 | 15 | 18.45 | |
| | Perez, Robert M | | | 2239 | USA | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Felecan, Florin | m | | 2390 | USA | 0.50 | 1 | 0.38 | 15 | 5.70 | |  Arnold, Marc T | m | | 2432 | USA | 0.50 | 1 | 0.40 | 15 | 6.00 | | | Betaneli, Alex | f | | 2265 | USA | 0.50 | 1 | 0.26 | 15 | 3.90 | | | Dehmelt, Karl | f | | 2290 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Ni, Viktorija | | wm | 2178 | LAT | 0.50 | 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) | | | | 4th New York International | New York, New York | USA | 2011-06-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2203 | 2059 | 2.00 | 7 | -0.19 | 15 | -2.85 | |
| | Salakhutdinov, Ildar | | | 2274 | RUS | 0.50 | 1 | 0.27 | 15 | 4.05 | | | Piasetski, Leon D | m | | 2301 | CAN | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Wang, Kevin | | | 2186 | USA | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Leve, Nitai D | | | 2131 | USA | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Machin Rivera, Mark | c | | 2255 | PUR | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Resika, Nathan | f | | 2162 | USA | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Mateer, Amanda | | wf | 2114 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | |
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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