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Individual Calculations September 2009 |
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| Nijboer, Friso Total change: -12.30 | |   |
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| Intomart GfK Open 2009 | Hilversum | NED | 2009-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2475 | 2562 | 6.00 | 9 | 0.53 | 10 | 5.30 | |
|  Meurs, Tom | | | 2212 | NED | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Slingerland, Fred | m | | 2389 | NED | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Hendriks, Willy | m | | 2447 | NED | 0.50 | 1 | -0.16 | 10 | -1.60 | | | Giri, Anish | f | | 2517 | NED | 1.00 | 1 | 0.44 | 10 | 4.40 | | | Reinderman, Dimitri | g | | 2560 | NED | 0.50 | 1 | 0.00 | 10 | 0.00 | | | Krasenkow, Michal | g | | 2622 | POL | 0.00 | 1 | -0.42 | 10 | -4.20 | | | Bitalzadeh, Ali | m | | 2417 | NED | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Pavlovic, Milos | g | | 2511 | SRB | 0.50 | 1 | -0.07 | 10 | -0.70 | | | L`ami, Erwin | g | | 2598 | NED | 0.50 | 1 | 0.05 | 10 | 0.50 | |
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) | | | | Dutch Open | Dieren | NED | 2009-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2367 | 2552 | 5.50 | 9 | -1.08 | 10 | -10.80 | |
| | Wilgenhof, Otto | | | 2207 | NED | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Van Eijk, Sander | f | | 2338 | NED | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Visser, Yge | g | | 2464 | NED | 0.50 | 1 | -0.12 | 10 | -1.20 | | | Bosch, Jeroen | m | | 2456 | NED | 1.00 | 1 | 0.37 | 10 | 3.70 | | | Giri, Anish | g | | 2518 | NED | 0.00 | 1 | -0.55 | 10 | -5.50 | | | Wohl, Aleksandar H. | m | | 2387 | AUS | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Ootes, Lars | | | 2261 | NED | 0.00 | 1 | -0.85 | 10 | -8.50 | | | Van Delft, Merijn | m | | 2360 | NED | 0.50 | 1 | -0.25 | 10 | -2.50 | | | Hoeksema, Erik | m | | 2309 | NED | 0.50 | 1 | -0.30 | 10 | -3.00 | |
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) | | | | Hogeschool Zeeland Chess Tournament 2009 | Vlissingen | NED | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2293 | 2552 | 6.50 | 9 | -0.70 | 10 | -7.00 | |
| | Dijkstra, Arjan | | | 2152 * | NED | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Haast, Anne | | | 2158 | NED | 0.50 | 1 | -0.42 | 10 | -4.20 | | | De Wolf, Johan | | | 2152 * | NED | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Leenaerts, Robin | | | 2248 | BEL | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Van Dongen, Cor | | | 2342 | NED | 0.50 | 1 | -0.27 | 10 | -2.70 | | | Shyam, Sundar M. | m | | 2415 | IND | 0.50 | 1 | -0.18 | 10 | -1.80 | | | Bosboom, Manuel | m | | 2444 | NED | 1.00 | 1 | 0.35 | 10 | 3.50 | | | Kohlweyer, Bernd | m | | 2418 | GER | 0.00 | 1 | -0.68 | 10 | -6.80 | | | Soumya, Swaminathan | | wg | 2309 | IND | 1.00 | 1 | 0.20 | 10 | 2.00 | | | * 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) | | | | BDO Premier Tournament | Haarlem | NED | 2009-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2470 | 2552 | 5.50 | 9 | 0.02 | 10 | 0.20 | |
| | Zumsande, Martin | m | | 2403 | GER | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Solleveld, Maarten | m | | 2485 | NED | 0.50 | 1 | -0.09 | 10 | -0.90 | | | Steingrimsson, Hedinn | g | | 2544 | ISL | 0.50 | 1 | -0.01 | 10 | -0.10 | | | Reinderman, Dimitri | g | | 2565 | NED | 0.50 | 1 | 0.02 | 10 | 0.20 | | | Van Oosterom, Chiel | m | | 2402 | NED | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Willemze, Jeroen | | | 2420 | NED | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Khenkin, Igor | g | | 2634 | GER | 0.50 | 1 | 0.11 | 10 | 1.10 | | | Mas, Hafizulhelmi | m | | 2391 | MAS | 0.00 | 1 | -0.71 | 10 | -7.10 | | | Van Kampen, Robin | f | | 2383 | NED | 0.50 | 1 | -0.22 | 10 | -2.20 | |
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) | | |
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