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Individual Calculations March 2010 |
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| Zierk, Steven C Total change: 21.15 | |   |
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| 19th Annual North American Open | Las Vegas, Nevada | USA | 2009-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2292 | 2306 | 5.00 | 7 | 1.34 | 15 | 20.10 | |
|  Heung, Christopher | | | 2049 | USA | 1.00 | 1 | 0.18 | 15 | 2.70 | |  Schill, William J | f | | 2229 | USA | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Yanayt, Eugene | f | | 2165 | USA | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Riordan, Charles R | f | | 2305 | USA | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Yermolinsky, Alex | g | | 2528 | USA | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Friedel, Joshua Ed | g | | 2551 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Carreto, Giovanni | c | | 2215 | MEX | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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) | | | | NorCal Open 2010 | Santa Clara, California | USA | 2010-01-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2265 | 2359 | 3.50 | 5 | 0.40 | 15 | 6.00 | |
| | Splane, Mike | | | 2120 | USA | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Liou, Yian | | | 2182 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Shankland, Samuel | m | | 2491 | USA | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Pupols, Viktors | | | 2210 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Tate, Emory A | m | | 2322 | USA | 1.00 | 1 | 0.45 | 15 | 6.75 | |
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) | | | | Golden State Open | Concord, California | USA | 2010-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2303 | 2359 | 2.50 | 5 | -0.33 | 15 | -4.95 | |
| | Gutman, Joshua | | | 2127 | USA | 0.50 | 1 | -0.29 | 15 | -4.35 | | | Friedel, Joshua E | g | | 2549 | USA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Sevian, Samuel | | | 2119 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Kudryavtsev, Vadim | | | 2215 | RUS | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Sevillano, Enrico | m | | 2506 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | |
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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