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Individual Calculations September 2023 |
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| Arivoli, Sadhana Total change: -7.60 | |   |
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| WIM Ruth Haring Memorial Tuesday Night Marathon - 1600 to 1999 Round 1-3 | San Francisco, CA | USA | 2023-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1524 | 1381 | 2.00 | 3 | 1.05 | 40 | 42.00 | |
|  Powers, Christopher | | | 1648 | USA | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Macnee, Felix | | | 1503 | USA | 1.00 | 1 | 0.67 | 40 | 26.80 | |  Faulkner, Charles | | | 1421 | USA | 1.00 | 1 | 0.56 | 40 | 22.40 | |
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) | | | | WIM Ruth Haring Memorial Tuesday Night Marathon - 1600 to 1999 Round 4-7 | San Francisco, CA | USA | 2023-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1537 | 1381 | 1.00 | 3 | 0.12 | 40 | 4.80 | |
| | Dutter, Fredrick | | | 1574 | USA | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Tirouvingadame, Ar | | | 1518 | USA | 0.50 | 1 | 0.18 | 40 | 7.20 | | | Toledo Guerrero, Fernando | | | 1519 | USA | 0.00 | 1 | -0.31 | 40 | -12.40 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 14 Female | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1212 | 1381 | 1.50 | 4 | -1.36 | 40 | -54.40 | |
| | Mejia Castellanos, Miha Cecilia | | | 1217 | HON | 0.50 | 1 | -0.22 | 40 | -8.80 | | | Leyva Laguna, Haley Judith | | | 1161 | MEX | 0.50 | 1 | -0.28 | 40 | -11.20 | | | Pham, Linda | | | 1350 | USA | 0.00 | 1 | -0.54 | 40 | -21.60 | | | Doan, Emilyn Chiu | | | 1118 | USA | 0.50 | 1 | -0.32 | 40 | -12.80 | |
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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