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Individual Calculations February 2020 |
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| Lafour, Jephte Total change: -32.00 | |   |
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| Chessfestival Groningen 2019 - Compact B | Groningen | NED | 2019-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1756 | 1696 | 2.00 | 3 | 0.75 | 20 | 15.00 | |
|  Verhoef, Harry | | | 1810 | NED | 1.00 | 1 | 0.66 | 20 | 13.20 | |  Van Der Graaf, Jaap | | | 1739 | NED | 0.50 | 1 | 0.06 | 20 | 1.20 | | | Van Velthoven, Paul | | | 1718 | NED | 0.50 | 1 | 0.03 | 20 | 0.60 | |
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) | | | | XXXI International Chess Open Roquetas de Mar 2020 | Roquetas de Mar | ESP | 2020-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1828 | 1690 | 2.00 | 8 | -0.77 | 20 | -15.40 | |
| | Gomez Sanjuan, Hector Fernando | | | 2090 * | ESP | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Gines Abad, Pedro | | | 1975 | ESP | 0.50 | 1 | 0.34 | 20 | 6.80 | | | Sanchez Lopez, Sergio Ii | | | 1954 | ESP | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Lirio Garcia, Carlos | | | 1980 | ESP | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Pintor Avila, Antonio | | | 1749 | ESP | 0.00 | 1 | -0.42 | 20 | -8.40 | | | Abrisqueta Zudaire, Ines | | | 1547 | ESP | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Hernandez Mullor, Francisco | | | 1712 | ESP | 0.00 | 1 | -0.47 | 20 | -9.40 | | | Macias Aguilar, Antonio Jesus | | | 1613 | ESP | 0.50 | 1 | -0.11 | 20 | -2.20 | | | * 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) | | | | Gibraltar International Chess Festival 2020 Challengers A | Gibraltar | ENG | 2020-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1960 | 1690 | 0.00 | 4 | -0.71 | 20 | -14.20 | |
| | Karlsson, Jorgen | | | 2054 | SWE | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Herzwurm, Robert | | | 1979 | GER | 0.00 | 1 | -0.16 | 20 | -3.20 | | | Aura, Kristian | | | 1928 | FIN | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Kaplan, Amiram | | | 1880 | ISR | 0.00 | 1 | -0.25 | 20 | -5.00 | |
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) | | | | Gibraltar International Chess Festival 2020 Challengers B | Gibraltar | ENG | 2020-01-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1877 | 1690 | 0.50 | 5 | -0.87 | 20 | -17.40 | |
| | Karlsson, Jorgen | | | 2054 | SWE | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Garcia Rodriguez, Inaki | | | 1944 | ESP | 0.00 | 1 | -0.19 | 20 | -3.80 | | | O`neil, Jim | | | 1870 | SCO | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Auvinen, Esa | | | 1850 | FIN | 0.50 | 1 | 0.21 | 20 | 4.20 | | | Nergard, Ole-Kristian | | | 1667 | NOR | 0.00 | 1 | -0.53 | 20 | -10.60 | |
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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