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Individual Calculations April 2009 |
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| Parfett, Gerald F Total change: -1.75 | |   |
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| Schaakfestival Groningen - Groep B | Groningen | NED | 2008-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1959 | 1650 | 1.00 | 3 | 0.58 | 25 | 14.50 | |
|  Hummel, Joop | | | 1997 | NED | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Hummel, Paul | | | 1969 | NED | 0.50 | 1 | 0.37 | 25 | 9.25 | |  Romijn, Bart | | | 1911 | NED | 0.50 | 1 | 0.32 | 25 | 8.00 | |
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) | | | | 25e open international de Cappelle | Cappelle la Grande | FRA | 2009-02-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1872 | 1650 | 0.00 | 3 | -0.65 | 25 | -16.25 | |
| | Zerbib, Claude | | | 1859 | FRA | 0.00 | 1 | -0.23 | 25 | -5.75 | | | Van Dijk, Hendrik | | | 1878 | FRA | 0.00 | 1 | -0.21 | 25 | -5.25 | | | Dorlet, Nicolas | | | 1880 | FRA | 0.00 | 1 | -0.21 | 25 | -5.25 | |
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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