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Individual Calculations February 2023 |
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| Kowalski, Witold Total change: 105.60 | |   |
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| 270th YMCA Winter 2023-B Round 1-3 | Warszawa | POL | 2023-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1610 | 1485 | 2.50 | 3 | 1.48 | 40 | 59.20 | |
|  Szumigaj, Marcin | | | 1502 | POL | 0.50 | 1 | 0.02 | 40 | 0.80 | |  Pasternak-Winiarski, Adam | | | 1611 | POL | 1.00 | 1 | 0.67 | 40 | 26.80 | | | Kuc, Mariusz | | | 1718 | POL | 1.00 | 1 | 0.79 | 40 | 31.60 | |
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) | | | | Ursynowski Festiwal Szachowy - Grupa A 2023 | Warszawa | POL | 2023-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1658 | 1485 | 3.00 | 5 | 1.16 | 40 | 46.40 | |
| | Skonieczny, Marcin | | | 1122 | POL | 1.00 | 1 | 0.10 | 40 | 4.00 | | | Podgorski, Maciej | | | 1996 | POL | 0.50 | 1 | 0.46 | 40 | 18.40 | | | Smieszek, Wojciech | | | 2090 | POL | 0.00 | 1 | -0.02 | 40 | -0.80 | | | Trzmiel, Bartosz | | | 1337 | POL | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Smetek, Michal | | | 1747 | POL | 0.50 | 1 | 0.32 | 40 | 12.80 | |
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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