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Individual Calculations August 2023 |
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| Turner, Bill Total change: -56.80 | |   |
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| 51st annual World Open - U2200 | Philadelphia, PA | USA | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1622 | 1803 | 1.50 | 5 | -2.16 | 20 | -43.20 | |
|  Qi, Jenny | | | 1614 | USA | 0.50 | 1 | -0.25 | 20 | -5.00 | |  Krotov, Damian | | | 1614 | FID | 0.00 | 1 | -0.75 | 20 | -15.00 | | | Chiu, Calvin K | | | 1742 | USA | 0.00 | 1 | -0.58 | 20 | -11.60 | | | Christiansen, Natasha | | wc | 1568 | USA | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Xu, Noah L | | | 1572 | USA | 0.50 | 1 | -0.29 | 20 | -5.80 | |
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) | | | | 24th annual Pittsburgh Open - U2100 | Pittsburgh, PA | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1404 | 1768 | 2.00 | 3 | -0.68 | 20 | -13.60 | |
| | Tang, Lydia | | | 1491 | USA | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Timmons, Sam | | | 1353 | USA | 0.00 | 1 | -0.93 | 20 | -18.60 | | | Tang, Henry | | | 1368 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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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