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Individual Calculations September 2023 |
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| Sun, Ryan Total change: 31.60 | |   |
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| 28th annual Bradley Open - Major | Windsor Locks, CT | USA | 2023-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2069 | 2158 | 2.00 | 3 | 0.15 | 40 | 6.00 | |
|  Chin, Spencer | | | 1780 | USA | 1.00 | 1 | 0.09 | 40 | 3.60 | |  Jain, Vihaan | | | 1802 | USA | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Negi, Parimarjan | g | | 2624 | IND | 0.00 | 1 | -0.05 | 40 | -2.00 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 12 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1899 | 2142 | 7.50 | 9 | 0.64 | 40 | 25.60 | |
| | Lopez Vivanco, Gregorio | | | 1742 * | CHI | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Wong, Wyatt | | | 1605 | USA | 1.00 | 1 | 0.03 | 40 | 1.20 | | | Yang, Maxwell | | | 1829 | USA | 0.50 | 1 | -0.36 | 40 | -14.40 | | | Diaz Guerrero, Jesus Daniel | | | 1747 | MEX | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Lu, Yiding | | | 1973 | USA | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Liu, Aiden Q | | | 2339 | USA | 1.00 | 1 | 0.75 | 40 | 30.00 | | | Ho, Carter | | | 1999 | USA | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Luger, Sam | | | 1998 | USA | 0.50 | 1 | -0.19 | 40 | -7.60 | | | Wu, Andrew | | | 1855 | USA | 0.50 | 1 | -0.34 | 40 | -13.60 | | | * 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) | | |
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