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Individual Calculations July 2015 |
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| Grabinsky, Aaron Total change: -43.20 | |   |
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| North American Youth Chess Festival 2015 U18 Open | Toluca, Estado de Mexico | MEX | 2015-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2092 | 2266 | 4.00 | 8 | -1.71 | 40 | -68.40 | |
|  Fonseca Manrique, Enrique | | | 2067 | MEX | 0.00 | 1 | -0.76 | 40 | -30.40 | |  Heredia Madrigal, Andrei | | | 1876 | MEX | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Araujo Lazaro, Juan Jose | | | 2018 | MEX | 1.00 | 1 | 0.19 | 40 | 7.60 | | | Cofre Archibold, Nestor | | | 2194 | MEX | 0.00 | 1 | -0.60 | 40 | -24.00 | | | Rodriguez Barragan, Luis E | | | 2073 | MEX | 0.00 | 1 | -0.75 | 40 | -30.00 | | | Hong, Andrew Z | | | 2162 | USA | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Pamatmat, Jarod M | | | 2071 | USA | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Flores Guerrero, Jesus Ald | m | | 2275 | MEX | 0.00 | 1 | -0.49 | 40 | -19.60 | |
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) | | | | 2015 National Open | Las Vegas, Nevada | USA | 2015-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2271 | 2241 | 3.50 | 6 | 0.63 | 40 | 25.20 | |
| | Becker, Allen J | | | 2116 | USA | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Bachmann, Axel | g | | 2626 | PAR | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Auger, Michael William | | | 2151 | USA | 0.50 | 1 | -0.12 | 40 | -4.80 | | | Von Krogh, Christopher J | | | 2233 | USA | 1.00 | 1 | 0.49 | 40 | 19.60 | | | Viswanadha, Kesav | m | | 2358 | USA | 0.00 | 1 | -0.34 | 40 | -13.60 | | | Wallach, Kenneth T | | | 2141 | USA | 1.00 | 1 | 0.36 | 40 | 14.40 | |
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) | | |
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