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Individual Calculations July 2021 |
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| Amburgy, Ryan Total change: 18.40 | |   |
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| 30th Annual Chicago Open - Open | Wheeling, Illinois | USA | 2021-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2126 | 2033 | 2.50 | 6 | 0.21 | 40 | 8.40 | |
|  Ramer, Scott | | | 2196 | USA | 0.50 | 1 | 0.22 | 40 | 8.80 | |  Posthuma, Joshua | f | | 2291 | USA | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Stevens, Matthew James | f | | 2237 | USA | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Singh, Hersh | | | 2096 | USA | 0.00 | 1 | -0.41 | 40 | -16.40 | | | Cavanah, Troy | | | 1938 | USA | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Xie, Bryan | c | | 1998 | USA | 1.00 | 1 | 0.45 | 40 | 18.00 | |
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 |
| 2262 | 1994 | 1.50 | 7 | 0.25 | 40 | 10.00 | |
| | Daggupati, Balaji | f | | 2389 | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Costello, Alexander John | m | | 2259 | USA | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Chasin, Nico Werner | f | | 2276 | USA | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Yang, Kevin Shen | | | 2275 | USA | 0.50 | 1 | 0.34 | 40 | 13.60 | | | Andrews, Todd D | f | | 2244 | USA | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Ubushiev, Andrey | | | 2169 | RUS | 0.50 | 1 | 0.23 | 40 | 9.20 | | | Taylor, Timothy W | m | | 2220 | USA | 0.50 | 1 | 0.29 | 40 | 11.60 | |
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) | | |
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