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Individual Calculations March 2019 |
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| Alasayfar, Abdulkarem Total change: 12.80 | |   |
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| Arab Cities Chess Championship | Hammamet | TUN | 2019-02-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 1933 | 2.50 | 4 | 1.07 | 20 | 21.40 | |
|  Al-Aqrabi, Saleh | c | | 2131 | YEM | 0.50 | 1 | 0.26 | 20 | 5.20 | |  Charfeddine, Akram | | | 2006 | TUN | 1.00 | 1 | 0.60 | 20 | 12.00 | | | Ouaret, Abdelouhab | m | | 2061 | ALG | 1.00 | 1 | 0.67 | 20 | 13.40 | | | Masrahi, Abdulrahman A | c | | 1959 | KSA | 0.00 | 1 | -0.46 | 20 | -9.20 | |
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) | | | | Final Libyan Cities 2019 | Misrata | LBA | 2019-02-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1780 | 1933 | 3.00 | 5 | -0.40 | 20 | -8.00 | |
| | Fates, Omer Salah | | | 1533 * | LBA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Elghaib, Rabea Omer | | | 1962 | LBA | 0.00 | 1 | -0.46 | 20 | -9.20 | | | Younis, Hamza Idris | | | 1741 | LBA | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Ali, Kairi G. | | | 1796 | LBA | 0.00 | 1 | -0.68 | 20 | -13.60 | | | Elfelu, Alsaid | | | 1870 | LBA | 1.00 | 1 | 0.41 | 20 | 8.20 | | | * 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) | | | | Final Libyan First Degree Clubs 2019 | Misrata | LBA | 2019-02-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1941 | 1933 | 2.50 | 5 | -0.03 | 20 | -0.60 | |
| | Alhelal, Emad | | | 1841 | LBA | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Alzawaie, Fawzi | | | 1824 | LBA | 0.50 | 1 | -0.15 | 20 | -3.00 | | | Elarabi, Abobker Mohamed | f | | 2311 | LBA | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Alharari, Mohammed Alsouri | f | | 2011 | LBA | 0.00 | 1 | -0.39 | 20 | -7.80 | | | Busnaina, Emad | | | 1718 | LBA | 1.00 | 1 | 0.23 | 20 | 4.60 | |
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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