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Individual Calculations February 2018 |
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| Lehmann, Spencer Total change: 14.20 | |   |
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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 |
| 2287 | 2209 | 4.00 | 8 | 0.71 | 40 | 28.40 | |
|  Hess, Robert | g | | 2568 | USA | 0.50 | 1 | 0.40 | 40 | 16.00 | |  Arun Prasad, S. | g | | 2490 | IND | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Kolay, Alex | | | 2034 | USA | 0.50 | 1 | -0.23 | 40 | -9.20 | | | Wolfley, Lawrence | | | 2063 | USA | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Kiewra, Keaton | m | | 2382 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Matus, Nastassja | | wf | 2005 | USA | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Taghizadeh, Rayan | f | | 2346 | USA | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Brattain, Mika | | | 2404 | USA | 0.00 | 1 | -0.25 | 40 | -10.00 | |
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) | | | NOTE: K factor changed | | Tim Just Winter Open XXXV | Schaumburg, Illinois | USA | 2018-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1835 | 2209 | 2.00 | 3 | -0.71 | 20 | -14.20 | |
| | Feygin, Alec | | | 1809 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Narayanan, Rishi T | | | 1818 | USA | 0.50 | 1 | -0.41 | 20 | -8.20 | | | Holzmueller, Nathan | | | 1878 | USA | 0.50 | 1 | -0.38 | 20 | -7.60 | | | * 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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