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Individual Calculations May 2017 |
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| Portakalci, Yusuf Total change: -45.20 | |   |
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| 2016-2017 Buyukcekmece District Chess Tournament | Istanbul | TUR | 2017-04-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1354 | 1555 | 0.50 | 3 | -1.75 | 40 | -70.00 | |
|  Ultanir, Guray | | | 1405 | TUR | 0.50 | 1 | -0.20 | 40 | -8.00 | |  Ergin, Sahin | | | 1402 | TUR | 0.00 | 1 | -0.70 | 40 | -28.00 | | | Kamisli, Gorkem Arda | | | 1254 | TUR | 0.00 | 1 | -0.85 | 40 | -34.00 | |
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) | | | | 23 April Chess Tournament-2017 - A | Istanbul | TUR | 2017-04-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1663 | 1555 | 2.50 | 5 | 0.62 | 40 | 24.80 | |
| | Cengiz, Firat | | | 1928 | TUR | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Uyanik, Toygun | | | 1668 | TUR | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Salt, Ilayda | | | 1561 | TUR | 1.00 | 1 | 0.51 | 40 | 20.40 | | | Akdas, Emre | | | 1562 | TUR | 0.50 | 1 | 0.01 | 40 | 0.40 | | | Sar, Can | | | 1594 | TUR | 1.00 | 1 | 0.55 | 40 | 22.00 | |
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) | | |
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