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Individual Calculations February 2018 |
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| Chen, Derek Total change: 25.20 | |   |
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| Marshall January 2017 Weekend FIDE | New York, New York | USA | 2018-01-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1748 | 1848 | 1.00 | 2 | -0.28 | 40 | -11.20 | |
|  Chen, Victor | | | 1694 | USA | 1.00 | 1 | 0.29 | 40 | 11.60 | |  Boxer, Matthew | | | 1801 | USA | 0.00 | 1 | -0.57 | 40 | -22.80 | |
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) | | | | 50th Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1968 | 1848 | 3.00 | 6 | 0.91 | 40 | 36.40 | |
| | Tanenbaum, Zachary | | | 2090 | USA | 0.00 | 1 | -0.20 | 40 | -8.00 | | | Zhang, Alan | | | 2022 | USA | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Wu, Eric | | | 1718 | USA | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Martin, Zachary | | | 2080 | USA | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Dong, Alice | | | 1953 | USA | 1.00 | 1 | 0.64 | 40 | 25.60 | | | Opaska, Michael | | | 1942 | USA | 1.00 | 1 | 0.63 | 40 | 25.20 | |
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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