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Individual Calculations July 2022 |
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| Porcelli, Michael W Total change: -11.60 | |   |
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| 31st Annual Chicago Open - Under 2100 | Wheeling, Illinois | USA | 2022-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1780 | 1678 | 2.50 | 5 | 0.61 | 20 | 12.20 | |
|  Stein, Josiah Robert | | | 2018 | USA | 0.50 | 1 | 0.38 | 20 | 7.60 | |  Gupta, Anand | | | 1598 | USA | 1.00 | 1 | 0.39 | 20 | 7.80 | | | Gabbara, Faris F | | | 1740 | USA | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Ancheta, Rene | | | 1853 | USA | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Brooks, Will Joseph | | | 1692 | USA | 0.00 | 1 | -0.48 | 20 | -9.60 | |
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) | | | | 2022 National Open - Under 2100 | Las Vegas, Nevada | USA | 2022-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1583 | 1678 | 2.50 | 6 | -1.19 | 20 | -23.80 | |
| | Williamson, Jason | | | 1745 | CAN | 0.00 | 1 | -0.41 | 20 | -8.20 | | | Zhang, Elena | | | 1388 | USA | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Weideman, Thomas | | | 1884 | USA | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Li, Edward Shunan | | | 1404 | USA | 0.50 | 1 | -0.33 | 20 | -6.60 | | | Xia, Joshua | | | 1542 | USA | 0.50 | 1 | -0.18 | 20 | -3.60 | | | Wang, Felicity | | | 1534 | USA | 0.50 | 1 | -0.19 | 20 | -3.80 | |
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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