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Individual Calculations September 2009 |
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| Petrov, Marijan Total change: 18.10 | |   |
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| South Wales International Open | Pontypridd | WLS | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2340 | 2479 | 5.50 | 8 | 0.24 | 10 | 2.40 | |
|  Salimbeni, George P W | | | 2115 | ENG | 1.00 | 1 | 0.10 | 10 | 1.00 | |  Tew, Paul | | | 2079 * | WLS | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Radulski, Julian | g | | 2539 | BUL | 0.50 | 1 | 0.08 | 10 | 0.80 | | | Marusenko, Petr | m | | 2323 | UKR | 0.50 | 1 | -0.21 | 10 | -2.10 | | | Rudd, Jack | m | | 2327 | ENG | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Arkell, Keith C | g | | 2521 | ENG | 0.00 | 1 | -0.44 | 10 | -4.40 | | | Richmond, Peter | | | 2242 | WLS | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Miezis, Normunds | g | | 2572 | LAT | 0.50 | 1 | 0.13 | 10 | 1.30 | | | * 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) | | | | Mazovian Chess Festival - Open B | Warszawa | POL | 2009-07-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2369 | 2479 | 6.00 | 9 | 0.36 | 10 | 3.60 | |
| | Witek, Tomasz | | | 2138 | POL | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Adamski, Jan | m | | 2276 | POL | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Andriasian, Zaven | g | | 2585 | ARM | 0.00 | 1 | -0.36 | 10 | -3.60 | | | Jedryczka, Krystian | | | 2244 | POL | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Paterek, Michal | | | 2302 | POL | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Vysochin, Spartak | g | | 2554 | UKR | 0.00 | 1 | -0.40 | 10 | -4.00 | | | Skawinski, Arkadiusz | | | 2153 | POL | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Czarnota, Pawel | g | | 2530 | POL | 0.50 | 1 | 0.07 | 10 | 0.70 | | | Radulski, Julian | g | | 2539 | BUL | 0.50 | 1 | 0.08 | 10 | 0.80 | |
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) | | | | Arctic Chess Challenge 2009 | Tromsø | NOR | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2346 | 2479 | 7.00 | 9 | 1.21 | 10 | 12.10 | |
| | Skage, Oystein Aagedal | | | 2079 * | NOR | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Gator, Mosab | | | 2079 * | LBA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Pettersson, Tobias | | | 2138 | SWE | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Shytaj, Luca | m | | 2455 | ITA | 0.50 | 1 | -0.03 | 10 | -0.30 | | | Radulski, Julian | g | | 2539 | BUL | 0.50 | 1 | 0.08 | 10 | 0.80 | | | Zdebskaja, Natalia | | wg | 2412 | UKR | 1.00 | 1 | 0.41 | 10 | 4.10 | | | Kiik, Kalle | m | | 2475 | EST | 1.00 | 1 | 0.49 | 10 | 4.90 | | | Robson, Ray | m | | 2491 | USA | 0.50 | 1 | 0.02 | 10 | 0.20 | | | Socko, Monika | g | wg | 2449 | POL | 0.50 | 1 | -0.04 | 10 | -0.40 | | | * 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) | | |
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