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Individual Calculations July 2009 |
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| Holt, Conrad Total change: 14.25 | |   |
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| 18th Annual Chicago Open - Open Section | Wheeling, Illinois | USA | 2009-05-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2386 | 2289 | 3.00 | 7 | 0.27 | 15 | 4.05 | |
|  Gurevich, Dmitry | g | | 2494 | USA | 1.00 | 1 | 0.76 | 15 | 11.40 | |  Sadvakasov, Darmen | g | | 2619 | KAZ | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Shulman, Yury | g | | 2632 | USA | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Hellwig, Luke | | | 2099 | USA | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Becker, Allen J | | | 2145 | USA | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Bradford, Joseph M | m | | 2419 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Adu, Oladapo O | m | | 2294 | NGR | 0.50 | 1 | 0.01 | 15 | 0.15 | |
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) | | | | 2009 National Open | Las Vegas, Nevada | USA | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2390 | 2289 | 2.50 | 5 | 0.68 | 15 | 10.20 | |
| | Finegold, Benjamin | m | | 2497 | USA | 0.50 | 1 | 0.27 | 15 | 4.05 | | | Sevillano, Enrico | m | | 2520 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Heung, Christopher | | | 1985 | USA | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Aldama, Dionisio | m | | 2458 | MEX | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Kraai, Jesse | g | | 2488 | USA | 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) | | |
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