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Individual Calculations October 2008 |
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| Peters, Jack Total change: -10.90 | |   |
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| Southern California Championship Candidates | Garden Grove, California | USA | 2008-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2178 | 2416 | 3.00 | 4 | -0.14 | 10 | -1.40 | |
|  Gutman, Joshua | | | 2112 | USA | 1.00 | 1 | 0.14 | 10 | 1.40 | |  Landaw, Julian W | | | 2248 | USA | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Lawrence, Danyul | | | 2066 | USA | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Casella, Michael | f | | 2287 | USA | 0.50 | 1 | -0.17 | 10 | -1.70 | |
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) | | | | 48th Annual Pacific Southwest Open | Los Angeles, CA | USA | 2008-07-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2308 | 2408 | 2.00 | 4 | -0.52 | 10 | -5.20 | |
| | Kerman, David J | | | 2169 | USA | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Taylor, Timothy W | m | | 2322 | USA | 0.50 | 1 | -0.12 | 10 | -1.20 | | | Sevillano, Enrico | m | | 2505 | USA | 0.50 | 1 | 0.13 | 10 | 1.30 | | | Small, Gregg H | | | 2235 | USA | 0.00 | 1 | -0.73 | 10 | -7.30 | |
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) | | | | Southern California Championship | Los Angeles, CA | USA | 2008-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2308 | 2408 | 4.50 | 7 | 0.21 | 10 | 2.10 | |
| | Lawrence, Danyul | | | 2058 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Kretchetov, Alexandre | f | | 2355 | RUS | 0.00 | 1 | -0.57 | 10 | -5.70 | | | Sevillano, Enrico | m | | 2505 | USA | 0.00 | 1 | -0.37 | 10 | -3.70 | | | Landaw, Julian W | | | 2246 | USA | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Tanaka, Christian | | | 2098 | USA | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Lakdawala, Cyrus F | m | | 2424 | USA | 1.00 | 1 | 0.52 | 10 | 5.20 | | | Matikozyan, Andranik | m | | 2470 | ARM | 0.50 | 1 | 0.09 | 10 | 0.90 | |
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) | | | | 30th Annual Southern California Open | Temecula, California | USA | 2008-08-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2218 | 2408 | 1.50 | 3 | -0.64 | 10 | -6.40 | |
| | Zaloznyy, Mike Y | | | 2058 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Matikozyan, Andranik | m | | 2470 | ARM | 0.00 | 1 | -0.41 | 10 | -4.10 | | | Gutman, Joshua | | | 2125 | USA | 0.50 | 1 | -0.34 | 10 | -3.40 | |
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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