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Individual Calculations September 2009 |
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| Yearwood, Roy Total change: 8.25 | |   |
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| Battle at the Border 2009 | Lloydminster, Alberta | CAN | 2009-06-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2041 | 2073 | 0.00 | 1 | -0.54 | 15 | -8.10 | |
|  Boik, Andrew | | | 2041 | CAN | 0.00 | 1 | -0.54 | 15 | -8.10 | |
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) | | | | 2009 Canadian Open | Edmonton, Alberta | CAN | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2213 | 2073 | 2.00 | 5 | 0.34 | 15 | 5.10 | |
|  Porper, Edward | m | | 2448 | CAN | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Moura, Eduardo | | | 2237 | BRA | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Gardner, Robert J | | | 2171 | CAN | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Martchenko, Alexander | | | 2039 | CAN | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Haynes, Nicolas | | | 2170 | CAN | 0.00 | 1 | -0.37 | 15 | -5.55 | |
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) | | | | 2009 BC Open Championship | Victoria, British Columbia | CAN | 2009-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2162 | 2073 | 1.50 | 2 | 0.75 | 15 | 11.25 | |
| | Wu, Howard | | | 2187 | CAN | 1.00 | 1 | 0.66 | 15 | 9.90 | | | Van Heirzeele, Daniel | | | 2137 | BEL | 0.50 | 1 | 0.09 | 15 | 1.35 | |
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) | | | | ECC August Sectional Group A | Edmonton, Alberta | CAN | 2009-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2073 | 2073 | 2.00 | 4 | 0.00 | 15 | 0.00 | |
| | Kalisvaart, Peter | | | 2078 | NED | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Pedersen, Rick | | | 2063 | CAN | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Gardner, Robert J | | | 2171 | CAN | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Daniluk, Jim | | | 1978 | CAN | 0.50 | 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) | | |
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