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Individual Calculations March 2023 |
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| Lazrak, Sami Total change: 20.40 | |   |
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| Belgian Interclubs 2022-2023 Ronde 6 | Various Places | BEL | 2023-01-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1657 | 1467 | 0.50 | 1 | 0.25 | 40 | 10.00 | |
|  Schleck, Victor | | | 1657 | BEL | 0.50 | 1 | 0.25 | 40 | 10.00 | |
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) | | | | Tournoi dHiver 2022-2023 Ronde 7 | Liege | BEL | 2023-02-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1641 | 1491 | 0.00 | 1 | -0.30 | 40 | -12.00 | |
|  Sofia, Tommaso | | | 1641 | BEL | 0.00 | 1 | -0.30 | 40 | -12.00 | |
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) | | | | Tournoi dHiver 2022-2023 Ronde 8 | Liege | BEL | 2023-02-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1427 | 1491 | 0.50 | 1 | -0.09 | 40 | -3.60 | |
| | Katumwa, Iko | | | 1427 | BEL | 0.50 | 1 | -0.09 | 40 | -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) | | | | Belgian Interclubs 2022-2023 Ronde 7 | Various Places | BEL | 2023-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1864 | 1491 | 0.50 | 1 | 0.40 | 40 | 16.00 | |
| | Alexopoulos, Spiros Orestis, Dr. | | | 1864 | GER | 0.50 | 1 | 0.40 | 40 | 16.00 | |
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) | | | | Belgian Youth Chess Championship 2023 -12 | Blankenberge | BEL | 2023-02-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1466 | 1491 | 4.00 | 7 | 0.25 | 40 | 10.00 | |
| | Violini, Enrico Giuseppe | | | 1282 | ITA | 0.50 | 1 | -0.27 | 40 | -10.80 | | | Kersemans, Aeneas | | | 1660 | BEL | 0.00 | 1 | -0.28 | 40 | -11.20 | | | Pierloot, Joran | | | 1311 | BEL | 0.50 | 1 | -0.24 | 40 | -9.60 | | | Peeters, Paul | | | 1114 | BEL | 1.00 | 1 | 0.09 | 40 | 3.60 | | | Cuyvers, Jens | | | 1863 | BEL | 0.50 | 1 | 0.40 | 40 | 16.00 | | | Dhooge, Servaas | | | 1762 | BEL | 0.50 | 1 | 0.33 | 40 | 13.20 | | | Hernandez Morales, Adriel | | | 1269 | BEL | 1.00 | 1 | 0.22 | 40 | 8.80 | |
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) | | |
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