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Individual Calculations September 2010 |
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| Karklins, Andrew Total change: -6.75 | |   |
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| 38th Annual World Open - Open Section | King of Prussia, Pennsylvania | USA | 2010-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2564 | 2210 | 0.00 | 2 | -0.22 | 15 | -3.30 | |
|  Perelshteyn, Eugene | g | | 2534 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | |  Stocek, Jiri | g | | 2593 | CZE | 0.00 | 1 | -0.09 | 15 | -1.35 | |
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) | | | | 38th Annual World Open - U2400 Section | King of Prussia, Pennsylvania | USA | 2010-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2229 | 2210 | 4.50 | 7 | 1.31 | 15 | 19.65 | |
| | Chiang, Jonathan | | | 1810 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Andrews, Todd D | f | | 2315 | USA | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Figler, Ilye | f | | 2290 | USA | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Hughes, Tyler B | | | 2296 | USA | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Melekhina, Alisa | | wm | 2265 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Rizzitano, James | m | | 2322 | USA | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Liu, Elliott J | f | | 2305 | USA | 0.50 | 1 | 0.13 | 15 | 1.95 | | | * 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) | | | | 3rd Annual Chicago Class Championships | Oak Brook, Illinois | USA | 2010-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2170 | 2215 | 1.50 | 4 | -0.75 | 15 | -11.25 | |
| | Gilruth, Peter | | | 2192 | USA | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Magness, Trevor S | | | 2126 | USA | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Menon, Gopal | | | 2175 | USA | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Iwu, Okechukwu A | | | 2185 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | |
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) | | | | Indianapolis Open | Indianapolis, Indiana | USA | 2010-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1983 | 2215 | 0.00 | 1 | -0.79 | 15 | -11.85 | |
| | Finegold, Spencer | | | 1983 | USA | 0.00 | 1 | -0.79 | 15 | -11.85 | |
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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