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Individual Calculations February 2018 |
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| Zavortink, Matt Total change: -18.20 | |   |
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| 27th Annual North American Open | Las Vegas, Nevada | USA | 2017-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2131 | 2133 | 3.50 | 8 | -0.46 | 20 | -9.20 | |
|  Matikozian, Andranik | m | | 2418 | ARM | 0.00 | 1 | -0.16 | 20 | -3.20 | |  Anderson, Michael | | | 1733 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kiewra, Keaton | m | | 2382 | USA | 0.50 | 1 | 0.31 | 20 | 6.20 | | | Watson, John | m | | 2232 | USA | 0.00 | 1 | -0.36 | 20 | -7.20 | | | Collyer, Curt | f | | 2250 | USA | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Adriaanse, Adam | | | 1996 | CAN | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Matus, Nastassja | | wf | 2005 | USA | 0.50 | 1 | -0.17 | 20 | -3.40 | | | Kolay, Alex | | | 2034 | USA | 1.00 | 1 | 0.36 | 20 | 7.20 | | | * 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) | | | | 9th Annual Golden State Open | Concord, California | USA | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2047 | 2133 | 2.50 | 5 | -0.45 | 20 | -9.00 | |
| | Martinez, Lawrence | | | 1733 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Jirasek, Ladia | f | | 2206 | USA | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Hills, Kenneth | | | 2090 | USA | 1.00 | 1 | 0.44 | 20 | 8.80 | | | Virtanen, Teemu | f | | 2301 | FIN | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Vidyarthi, Vyom | | | 1904 | USA | 0.50 | 1 | -0.29 | 20 | -5.80 | | | * 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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