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Individual Calculations May 2023 |
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| Sferruggia, Serge Total change: 6.40 | |   |
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| Challenge Seredynski Ronde 1 | Ans | BEL | 2023-04-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1075 | 1475 | 1.00 | 1 | 0.08 | 20 | 1.60 | |
|  Valembois, Pierre | | | 1075 * | BEL | 1.00 | 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) | | | | Challenge Seredynski Ronde 2 | Ans | BEL | 2023-04-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1632 | 1475 | 0.50 | 1 | 0.21 | 20 | 4.20 | |
|  Thirion, Jean-Francois | | | 1632 | BEL | 0.50 | 1 | 0.21 | 20 | 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) | | | | Belgian Interclubs 2022-2023 Ronde 10 | Various Places | BEL | 2023-04-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1961 | 1475 | 0.00 | 1 | -0.04 | 20 | -0.80 | |
| | Verschraegen, Thomas | | | 1961 | BEL | 0.00 | 1 | -0.04 | 20 | -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) | | | | Challenge Seredynski Ronde 3 | Ans | BEL | 2023-04-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1682 | 1475 | 0.00 | 1 | -0.23 | 20 | -4.60 | |
| | Henry, Michael | | | 1682 | BEL | 0.00 | 1 | -0.23 | 20 | -4.60 | |
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) | | | | Challenge Seredynski Ronde 4 | Ans | BEL | 2023-04-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1716 | 1475 | 0.50 | 1 | 0.30 | 20 | 6.00 | |
| | Cypers, Alexandre | | | 1716 | BEL | 0.50 | 1 | 0.30 | 20 | 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) | | |
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