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Individual Calculations August 2018 |
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| Li, Marissa Total change: 17.60 | |   |
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| 11th Annual Chicago Class | Wheeling, Illinois | USA | 2018-07-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2237 | 1974 | 2.00 | 5 | 1.02 | 40 | 40.80 | |
|  Cooklev, Steven | | | 2138 | USA | 1.00 | 1 | 0.72 | 40 | 28.80 | |  Li, Ben | f | | 2372 | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Stevens, Matthew | | | 2105 | USA | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Jayaram, Ashwin | g | | 2374 * | IND | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Tsay, Vincent | f | | 2198 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | * 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) | | | | 15th Annual Susan Polgar Foundation Girls Invitational | St. Louis, Missouri | USA | 2018-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1801 | 1974 | 3.00 | 5 | -0.58 | 40 | -23.20 | |
| | Marin Leon, Valeria | | wc | 1732 | CRC | 1.00 | 1 | 0.20 | 40 | 8.00 | | | Botez, Andrea Ceci | | | 1773 | CAN | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Vittal, Sanjana | | wf | 1947 | USA | 0.00 | 1 | -0.54 | 40 | -21.60 | | | Romero, Antonella | | wf | 1878 | PER | 0.00 | 1 | -0.63 | 40 | -25.20 | | | Cheng, Emma | | | 1676 | USA | 1.00 | 1 | 0.15 | 40 | 6.00 | |
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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