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Individual Calculations September 2009 |
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| Harmon-Vellotti, Luke Total change: 30.75 | |   |
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| 37th Annual World Open - Open Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2305 | 2011 | 2.00 | 8 | 0.72 | 15 | 10.80 | |
|  Bonin, Jay | m | | 2361 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Yeager, Daniel A | f | | 2361 | USA | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Enkhbat, Tegshsuren | m | | 2361 | USA | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Rensch, Daniel M | f | | 2361 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Peng, David | | | 2245 | CAN | 1.00 | 1 | 0.79 | 15 | 11.85 | | | Panjwani, Raja | f | | 2361 | CAN | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Kaminski, Victor | | | 2244 | CAN | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Greanias, Steven D | | | 2149 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2238 | 2017 | 2.50 | 5 | 1.33 | 15 | 19.95 | |
| | Antal, Gergely | m | | 2417 * | HUN | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Boas, Toby | | | 2183 | USA | 1.00 | 1 | 0.72 | 15 | 10.80 | | | Karklins, Andrew | f | | 2205 | USA | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Dejmek, Mark W | | | 2118 | USA | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Homa, Seth | | | 2269 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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