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Individual Calculations September 2017 |
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| Treger, Yefim Total change: 5.40 | |   |
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| 7th Annual Potomac Open - U2300 | Rockville, Maryland | USA | 2017-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1887 | 2149 | 3.00 | 4 | -0.25 | 20 | -5.00 | |
|  Zheng, Michael Zihan | | | 1778 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | |  Wang, Shawn | | | 1865 | USA | 0.50 | 1 | -0.34 | 20 | -6.80 | | | Books, Lawrence James | | | 1982 | USA | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Chiu, Isaac | | | 1923 | USA | 0.50 | 1 | -0.29 | 20 | -5.80 | |
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) | | | | 49th Annual Atlantic Open | Arlington, Virginia | USA | 2017-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2269 | 2149 | 2.00 | 4 | 0.52 | 20 | 10.40 | |
| | Prem, Pranav | | | 1832 | USA | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Sadorra, Julio C | g | | 2549 * | PHI | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Kore, Akshayraj | g | | 2470 | IND | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Kretchetov, Alexander | f | | 2223 | RUS | 0.50 | 1 | 0.10 | 20 | 2.00 | | | * 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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