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Individual Calculations January 2009 |
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| Jellema, Yme Jan Total change: 24.90 | |   |
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| 2B - r 1-3 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2025 | 2126 | 1.00 | 1 | 0.36 | 15 | 5.40 | |
|  Zilverberg, Jasper | | | 2025 | NED | 1.00 | 1 | 0.36 | 15 | 5.40 | |
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) | | | | 3C - r 1-3 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2191 | 2126 | 1.00 | 2 | 0.18 | 15 | 2.70 | |
|  Bos, Niels | | | 2168 | NED | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Jolles, Hajo | f | | 2214 | NED | 0.00 | 1 | -0.38 | 15 | -5.70 | |
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) | | | | Essent Open | Hoogeveen | NED | 2008-10-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2274 | 2130 | 4.00 | 9 | 1.12 | 15 | 16.80 | |
| | Brandenburg, Daan | m | | 2436 | NED | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Miedema, Roi | f | | 2307 | NED | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Archangelsky, Mikhail | m | | 2276 | RUS | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Bykhovsky, Anatoly A | m | | 2364 | RUS | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Bitalzadeh, Ali | f | | 2370 | NED | 0.50 | 1 | 0.30 | 15 | 4.50 | | | Wempe, Joost | | | 2291 | NED | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Groenewold, Jan Joris | | | 2106 | NED | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Ten Vergert, Paul | | | 1980 | NED | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Vedder, Richard | f | | 2334 | NED | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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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