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Individual Calculations January 2018 |
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| Pietrac, Christian Total change: 3.80 | |   |
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| Open 13 Samedi 2017-18 r1-4 | VITROLLES | FRA | 2017-09-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1170 | 1252 | 2.00 | 3 | 0.19 | 20 | 3.80 | |
|  Denis, Aurele | | | 1010 | FRA | 1.00 | 1 | 0.20 | 20 | 4.00 | |  Vicari-Vento, Salvatore | | | 1414 | FRA | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Timoner, Genevieve | | | 1085 | FRA | 1.00 | 1 | 0.28 | 20 | 5.60 | |
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) | | |
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