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Individual Calculations October 2021 |
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| Koellner, Ruben Gideon Total change: -9.20 | |   |
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| European Individual Chess Championship - Reykjavik Open 2021 | Reykjavik | ISL | 2021-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2349 | 2418 | 6.00 | 11 | -0.22 | 10 | -2.20 | |
|  Sveinbjornsson, Gudmundur Orri | | | 2018 * | ISL | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Paichadze, Luka | g | | 2564 | GEO | 0.00 | 1 | -0.30 | 10 | -3.00 | | | Mai, Alexander Oliver | | | 2090 | ISL | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Dragnev, Valentin | g | | 2557 | AUT | 0.00 | 1 | -0.31 | 10 | -3.10 | | | Saraci, Korab | | | 2154 | KOS | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Birkisson, Bardur Orn | c | | 2163 | ISL | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Hillarp Persson, Tiger | g | | 2543 | SWE | 0.50 | 1 | 0.17 | 10 | 1.70 | | | Suleymanli, Aydin | m | | 2536 | AZE | 0.50 | 1 | 0.16 | 10 | 1.60 | | | Ferreira, Jorge Viterbo | g | | 2520 | POR | 0.50 | 1 | 0.14 | 10 | 1.40 | | | Kozak, Adam | g | | 2504 | HUN | 0.00 | 1 | -0.38 | 10 | -3.80 | | | Wecker, Martin | | | 2195 | GER | 1.00 | 1 | 0.22 | 10 | 2.20 | | | * 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) | | | | 1. Int. Swiss-Masters Baden-Baden | Baden-Baden | GER | 2021-09-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2331 | 2441 | 4.50 | 9 | -1.16 | 10 | -11.60 | |
| | Koellner, Christof | | | 2156 | GER | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Soham, Das | m | | 2383 | IND | 0.50 | 1 | -0.08 | 10 | -0.80 | | | Schlosser, Philipp | g | | 2507 | GER | 0.50 | 1 | 0.09 | 10 | 0.90 | | | Papadiamandis, Elliot | f | | 2404 | FRA | 0.50 | 1 | -0.05 | 10 | -0.50 | | | Schmider, Niklas | f | | 2307 | GER | 0.00 | 1 | -0.68 | 10 | -6.80 | | | Richter, Nils | f | | 2267 | GER | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Parvanyan, Ashot | m | | 2460 | GER | 0.00 | 1 | -0.47 | 10 | -4.70 | | | Froewis, Georg | m | | 2453 | AUT | 0.00 | 1 | -0.48 | 10 | -4.80 | | | Von Mettenheim, Johannes | | | 2041 * | GER | 1.00 | 1 | 0.08 | 10 | 0.80 | | | * 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) | | | | DSB Rising Stars GM-Turnier 2021 | Berlin | GER | 2021-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2438 | 2441 | 5.00 | 9 | 0.46 | 10 | 4.60 | |
| | Lanka, Zigurds | g | | 2390 | LAT | 1.00 | 1 | 0.43 | 10 | 4.30 | | | Parvanyan, Ashot | m | | 2460 | GER | 1.00 | 1 | 0.53 | 10 | 5.30 | | | Krastev, Alexander | f | | 2393 | GER | 0.50 | 1 | -0.07 | 10 | -0.70 | | | Sawlin, Leonid | f | | 2410 | GER | 1.00 | 1 | 0.46 | 10 | 4.60 | | | Bethke, Richard | f | | 2332 | GER | 0.00 | 1 | -0.65 | 10 | -6.50 | | | Haba, Petr | g | | 2447 | CZE | 0.50 | 1 | 0.01 | 10 | 0.10 | | | Romanov, Evgeny | g | | 2594 | RUS | 1.00 | 1 | 0.70 | 10 | 7.00 | | | Saltaev, Mihail | g | | 2472 | UZB | 0.00 | 1 | -0.46 | 10 | -4.60 | | | Buckels, Valentin | m | | 2448 | GER | 0.00 | 1 | -0.49 | 10 | -4.90 | |
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) | | |
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