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Individual Calculations February 2018 |
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| Samuelson, Andrew Total change: -26.80 | |   |
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| 44th Annual Eastern Open | Falls Church, Virginia | USA | 2017-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1921 | 2201 | 3.50 | 7 | -2.28 | 20 | -45.60 | |
|  De Fotis, Gary | | | 1957 | USA | 0.50 | 1 | -0.30 | 20 | -6.00 | |  Boris, Peter Theodore | | | 1904 | USA | 0.00 | 1 | -0.85 | 20 | -17.00 | | | Miller, Andrew J | | | 1820 | USA | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Park, Evan | | | 1801 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Warusawitharana, Missaka | | | 1938 | USA | 0.00 | 1 | -0.82 | 20 | -16.40 | | | Steincamp, Isaac | | | 2062 | USA | 0.00 | 1 | -0.69 | 20 | -13.80 | | | Books, Muskee | | | 1967 | USA | 1.00 | 1 | 0.21 | 20 | 4.20 | | | * 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 Chesapeake Open | Rockville, Maryland | USA | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2205 | 2184 | 4.50 | 7 | 1.16 | 20 | 23.20 | |
| | Karell, Leif | | | 1954 | USA | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Fishbein, Alexander | g | | 2444 | USA | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Morefield, Jason | | | 2085 | USA | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Zimmer, Ralph | f | | 2201 | USA | 1.00 | 1 | 0.52 | 20 | 10.40 | | | Balakrishnan, Praveen | m | | 2427 | USA | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Kaufman, Raymond | m | | 2217 | USA | 1.00 | 1 | 0.55 | 20 | 11.00 | | | Indusekar, Akshay | | | 2109 | USA | 0.50 | 1 | -0.10 | 20 | -2.00 | |
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) | | | | Northern Virginia Chess League Season 5 Round 1 | Dulles, Virginia | USA | 2018-01-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2020 | 2184 | 0.50 | 1 | -0.22 | 20 | -4.40 | |
| | Webster, Scott | | | 2020 | USA | 0.50 | 1 | -0.22 | 20 | -4.40 | |
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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