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Individual Calculations July 2021 |
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| Vibbert, Sean Total change: 57.20 | |   |
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| 30th Annual Chicago Open - Open | Wheeling, Illinois | USA | 2021-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2286 | 2270 | 4.50 | 9 | 0.20 | 20 | 4.00 | |
|  Fricano, Paul | | | 1966 | USA | 1.00 | 1 | 0.14 | 20 | 2.80 | |  Finegold, Benjamin P | g | | 2476 | USA | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Putnam, Liam Henry | f | | 2104 | USA | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Chandran, Kapil | f | | 2402 | USA | 0.50 | 1 | 0.18 | 20 | 3.60 | | | Schmakel, Sam A | m | | 2435 | USA | 1.00 | 1 | 0.72 | 20 | 14.40 | | | Repka, Christopher | g | | 2497 | SVK | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Shetty, Atulya Arya | m | | 2466 | USA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Quirke, Jeffrey L | | | 2107 | USA | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Clayton, Ryan Daniel | | | 2124 | USA | 0.50 | 1 | -0.20 | 20 | -4.00 | |
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) | | | | 2021 National Open - Championship | Las Vegas, Nevada | USA | 2021-06-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2387 | 2270 | 5.50 | 8 | 2.66 | 20 | 53.20 | |
| | Zierk, Steven | g | | 2499 | USA | 0.50 | 1 | 0.29 | 20 | 5.80 | | | Checa, Nicolas De T | g | | 2574 | USA | 0.50 | 1 | 0.36 | 20 | 7.20 | | | Belous, Vladimir | g | | 2520 | RUS | 0.50 | 1 | 0.31 | 20 | 6.20 | | | Abrahamyan, Tatev | | wg | 2358 | USA | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Yanayt, Eugene | f | | 2102 | USA | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Yan, Ruiyang | | wc | 2084 | USA | 1.00 | 1 | 0.26 | 20 | 5.20 | | | Yermolinsky, Alex | g | | 2498 | USA | 1.00 | 1 | 0.79 | 20 | 15.80 | | | Javakhadze, Zurabi | m | | 2462 | GEO | 1.00 | 1 | 0.75 | 20 | 15.00 | |
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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