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Individual Calculations February 2013 |
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| Geertsema, Piet Total change: -5.25 | |   |
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| Tata Steel Chess Tournament 2013 Weekend 3C | Wijk aan Zee | NED | 2013-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2054 | 1980 | 1.00 | 2 | 0.20 | 15 | 3.00 | |
|  Thakoerdien, Jerrel | | | 2078 | NED | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Taal, Anne Paul | | | 2029 | NED | 0.50 | 1 | 0.07 | 15 | 1.05 | |
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) | | | | Tata Steel Chess Tournament 2013 Tienkampen 3J | Wijk aan Zee | NED | 2013-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2016 | 1980 | 3.50 | 9 | -0.55 | 15 | -8.25 | |
| | Wiersma, Arno | | | 2035 | NED | 0.50 | 1 | 0.08 | 15 | 1.20 | | | De Zwart, Johan | | | 2053 | NED | 0.50 | 1 | 0.10 | 15 | 1.50 | |  Pijlman, Rene | | | 2010 | NED | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Adriaanse, Tom | | | 1980 | NED | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Billio, Atto | | | 2081 | ITA | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Ijzermans, Gijs | | | 1966 | NED | 0.50 | 1 | -0.02 | 15 | -0.30 | | | De Jong, Roel | | | 2046 | NED | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Boelhouwer, Collin | | | 2008 | NED | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Seelemeijer, Jasper | | | 1969 | NED | 0.00 | 1 | -0.52 | 15 | -7.80 | |
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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