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Rapid:
Individual Calculations September 2015 |
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| Alcala, Alvin Total change: 30.80 | |   |
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| Al Khobar Chess Championship | Al Khobar | KSA | 2015-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 2192 | 4.00 | 4 | 1.11 | 20 | 22.20 | |
|  Medhat, Magdy | | | 1792 * | EGY | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Hechanova, Ephraim | | | 2017 | PHI | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Ababneh, Ghayth | | | 2027 | JOR | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Al Ghamdi, Ahmed M | | | 2175 | KSA | 1.00 | 1 | 0.48 | 20 | 9.60 | | | * 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) | | | | Riyadh International Chess Championship | Riyadh | KSA | 2015-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2085 | 2192 | 3.00 | 4 | 0.43 | 20 | 8.60 | |
| | Gallardo, Aldrin | | | 2033 | PHI | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Abano, Gary | | | 2058 | PHI | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Al Jabri, Mohammed Ali | | | 2074 | SYR | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Al Ghamdi, Ahmed M | | | 2175 | KSA | 0.00 | 1 | -0.52 | 20 | -10.40 | |
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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