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Individual Calculations September 2023 |
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| Samuelson, Andrew Total change: 51.80 | |   |
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| 2023 Independence Day Open - Premier | Dulles, VA | USA | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1823 | 1993 | 2.50 | 4 | -0.34 | 20 | -6.80 | |
|  Jinsi, Soham Gyani | | | 1744 | USA | 1.00 | 1 | 0.19 | 20 | 3.80 | |  Baim, Elvin | | | 1718 | AZE | 0.00 | 1 | -0.83 | 20 | -16.60 | | | Haldankar, Ameya | | | 1841 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Clancy, Daniel | | | 1990 | USA | 0.50 | 1 | 0.00 | 20 | 0.00 | |
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) | | | | 10th Annual Potomac Open - Championship | Rockville, MD | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2044 | 2006 | 4.50 | 5 | 2.26 | 20 | 45.20 | |
| | Samant, Neil | | | 1982 | USA | 1.00 | 1 | 0.47 | 20 | 9.40 | | | Hebbar, Eshaan | c | | 1978 | USA | 1.00 | 1 | 0.46 | 20 | 9.20 | | | Adu, Oladapo Olutola | m | | 2088 | NGR | 1.00 | 1 | 0.61 | 20 | 12.20 | | | Senft, Sean | | | 2160 | USA | 1.00 | 1 | 0.71 | 20 | 14.20 | | | Clancy, Daniel | | | 2010 | USA | 0.50 | 1 | 0.01 | 20 | 0.20 | |
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) | | | | 2nd Annual Beltway Open | Herndon, Virginia | USA | 2023-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1860 | 2006 | 3.50 | 4 | 0.84 | 20 | 16.80 | |
| | Kurup, Siddharth Ajay | | | 1801 | USA | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Srinivasan, Arjun | | | 1860 | USA | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Kollur, Anshul | | | 1606 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Tahmassebi, Bijan | | | 2172 | USA | 0.50 | 1 | 0.22 | 20 | 4.40 | | | * 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) | | | | 10th Annual Washington International - Championship | Rockville, MD | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2147 | 2006 | 3.00 | 9 | 0.08 | 20 | 1.60 | |
| | Matta, Nicholas F | | | 2253 | USA | 0.50 | 1 | 0.31 | 20 | 6.20 | | | Luo, Terry | f | | 2351 | USA | 0.50 | 1 | 0.39 | 20 | 7.80 | | | Girsh, Daniel | | | 2200 | USA | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Mendes, Aaron Reeve | c | | 2079 | CAN | 1.00 | 1 | 0.60 | 20 | 12.00 | | | Jin, Ashton | | | 2172 | USA | 0.50 | 1 | 0.22 | 20 | 4.40 | | | Zhong, Kevin | f | | 2238 | CAN | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Lomakina, Anzhelika | | | 2017 | UKR | 0.00 | 1 | -0.48 | 20 | -9.60 | | | Platnick, Elijah Samuel | | | 2053 | USA | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Hebbar, Eshaan | c | | 1959 | USA | 0.00 | 1 | -0.57 | 20 | -11.40 | |
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) | | | | 55th annual Atlantic Open - Major | Reston, VA | USA | 2023-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1895 | 2006 | 3.00 | 5 | -0.25 | 20 | -5.00 | |
| | Li, Michael | | | 1937 | USA | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Gaw, Chloe | | | 1874 | USA | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Martin, Zachary David | | | 1959 | USA | 0.00 | 1 | -0.57 | 20 | -11.40 | | | Haldankar, Ameya | | | 1790 | USA | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Xiong, Lang Leo | | | 1916 | USA | 0.50 | 1 | -0.12 | 20 | -2.40 | |
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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