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Individual Calculations April 2009 |
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| Miedema, Roi Total change: 44.70 | |   |
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| 1B - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2135 | 2303 | 1.00 | 1 | 0.28 | 15 | 4.20 | |
|  Van Herwaarden, Arjen | | | 2135 | NED | 1.00 | 1 | 0.28 | 15 | 4.20 | |
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) | | | | Open International de Bethune -A | Bethune | FRA | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2257 | 2307 | 6.00 | 9 | 0.97 | 15 | 14.55 | |
| | L`ami, Erwin | g | | 2610 | NED | 1.00 | 1 | 0.86 | 15 | 12.90 | |  Boidman, Yuri | m | | 2415 | GER | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Gallardo Garcia, Andres | f | | 2426 | ESP | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Dufour, Mickael | | | 2098 | FRA | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Ducarmon, Quinten | | | 2083 | NED | 0.50 | 1 | -0.28 | 15 | -4.20 | | | Blom, Vincent | | | 2053 | NED | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Guilleux, Fabien | | | 2396 | FRA | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Bakalarz, Grazyna | | wf | 2001 | LUX | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Op Den Kelder, Joram | | | 2231 | NED | 1.00 | 1 | 0.40 | 15 | 6.00 | |
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) | | | | 21. Staufer Open | Schwaebisch Gmuend | GER | 2009-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2193 | 2325 | 7.00 | 9 | 1.04 | 15 | 15.60 | |
| | Steinhart, Matthias | | | 1975 | GER | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Wortmann, Dirk | | | 2049 | GER | 0.50 | 1 | -0.33 | 15 | -4.95 | | | Hehn, Hartmut | | | 2049 | GER | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Heinrich, Alexander, Dr. | | | 2140 | GER | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Schnabel, Andreas | | | 2138 | GER | 0.00 | 1 | -0.74 | 15 | -11.10 | | | Samak, Alexander | | | 2108 | GER | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Wutz, Christoph | | | 2208 | GER | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Rau, Hannes | m | | 2428 | GER | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Graf, Alexander | g | | 2644 | GER | 1.00 | 1 | 0.87 | 15 | 13.05 | |
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) | | | | Gibraltar Master 2009 | Gibraltar | ENG | 2009-01-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2271 | 2325 | 5.00 | 10 | -0.61 | 15 | -9.15 | |
| | Gurevich, Mikhail | g | | 2624 | TUR | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Benson, Oisin P. | | | 1975 | IRL | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Perman, Torvald | | | 2077 | FIN | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Stefanova, Antoaneta | g | | 2557 | BUL | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Whitehead, David J | | | 2155 | ENG | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Bates, Caspar J | | | 2142 | ENG | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Al Sayed, Mohamad N. | m | | 2488 | QAT | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Skage, Oystein Aagedal | | | 1975 | NOR | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Berczes, David | g | | 2513 | HUN | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Bravetti, Antonio | | | 2205 | ITA | 0.00 | 1 | -0.66 | 15 | -9.90 | |
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 |
| 2386 | 2325 | 5.00 | 9 | 1.30 | 15 | 19.50 | |
| | Le Roux, Jean-Pierre | m | | 2491 | FRA | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Yandemirov, Valeri | g | | 2474 | RUS | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Chernikov, Oleg L | g | | 2406 | RUS | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Thirion, Marcel | | | 2115 | BEL | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Naumkin, Igor | g | | 2501 | RUS | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Hirschmann, Georges | | | 1975 | FRA | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Bhat, Vinay S | g | | 2495 | USA | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Kiselev, Vitaliy | g | | 2539 | RUS | 0.50 | 1 | 0.27 | 15 | 4.05 | | | Akesson, Ralf | g | | 2480 | SWE | 0.00 | 1 | -0.29 | 15 | -4.35 | |
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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