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Individual Calculations December 2015 |
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| Lotsov Har-Zahav, Avraham Total change: 26.60 | |   |
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| Start of Season Herzliya 2015 under 2000 | Herzliya | ISR | 2015-09-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1666 | 1928 | 4.00 | 4 | 0.77 | 20 | 15.40 | |
|  Greiver, Alejandro | | | 1646 | URU | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Barski, Yosef | | | 1576 | ISR | 1.00 | 1 | 0.11 | 20 | 2.20 | |  Lahav, Doron | | | 1608 | ISR | 1.00 | 1 | 0.13 | 20 | 2.60 | | | El-Az, Shay | | | 1834 | ISR | 1.00 | 1 | 0.37 | 20 | 7.40 | |
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) | | | | World Senior Championship 2015 - over 65 | Acqui Terme | ITA | 2015-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1919 | 1928 | 6.00 | 11 | 0.56 | 20 | 11.20 | |
| | Trois, Francisco R.t. | m | | 2230 | BRA | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Vanzan, Alessandro | | | 1547 | ITA | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Schouten, Nico | m | | 2120 | NED | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Valenti, Giuseppe | f | | 2097 | ITA | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Shamis, Mordehay | | | 1746 | ISR | 0.50 | 1 | -0.24 | 20 | -4.80 | | | De Giorgis, Georges | | | 1639 | USA | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Wheeler, Robert | c | | 2072 | JAM | 1.00 | 1 | 0.69 | 20 | 13.80 | | | Meizlin, Yaacov | | | 2095 | ISR | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Olesen, Poul Erik Norgaard | | | 2024 | DEN | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Rigotti, Gianluigi | | | 1528 * | ITA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Blaushtain, Boris | | | 2006 | ISR | 1.00 | 1 | 0.61 | 20 | 12.20 | | | * 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) | | |
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