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Individual Calculations July 2021 |
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| David, Alexandru Total change: -5.80 | |   |
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| Romania National Amateur Championships 2021 | Poiana Tapului | ROU | 2021-05-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1383 | 1526 | 3.00 | 6 | -0.98 | 20 | -19.60 | |
|  Voda, Costel | | | 1803 | ROU | 0.00 | 1 | -0.17 | 20 | -3.40 | |  Tatu, Camelia-Maria | | | 1174 | ROU | 0.00 | 1 | -0.89 | 20 | -17.80 | | | Badica, Ariana | | | 1185 | ROU | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Nastase, Cristian-Emil | | | 1267 | ROU | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Ghinea, Constantin | | | 1598 | ROU | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Vitan, Adrian | | | 1269 | ROU | 1.00 | 1 | 0.18 | 20 | 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) | | | | Bitcoin Romania Chess Open 3rd ed. - A Tournament - Open | Bucuresti | ROU | 2021-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1892 | 1526 | 1.00 | 3 | 0.69 | 20 | 13.80 | |
| | Panush, Viktor | m | | 1926 * | MDA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Rotariu, Constantin | | | 1825 | CAN | 1.00 | 1 | 0.85 | 20 | 17.00 | | | Pirvulescu, Adrian | | | 1926 * | ROU | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * 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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