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Individual Calculations September 2010 |
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| Abrahamyan, Tatev Total change: 42.45 | |   |
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| 50th Annual Pacific Southwest Open | Los Angeles, California | USA | 2010-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 2310 | 1.50 | 3 | -0.94 | 15 | -14.10 | |
|  Liao, Simone | | wf | 1910 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | |  Gutman, Joshua | | | 2151 | USA | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Krishnan, Varun | | | 2056 | USA | 0.50 | 1 | -0.31 | 15 | -4.65 | | | * 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) | | | | 2010 US Womens Championship | St. Louis, Missouri | USA | 2010-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2308 | 2310 | 7.50 | 9 | 2.97 | 15 | 44.55 | |
| | Baginskaite, Camilla | | wg | 2343 | USA | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Krush, Irina | m | wg | 2476 | USA | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Melekhina, Alisa | | wm | 2265 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Zenyuk, Iryna | c | wm | 2236 | USA | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Marshall, Abby | | wf | 2182 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Marinello, Beatriz | | wm | 2160 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Foisor, Sabina-Francesca | | wg | 2317 | USA | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Zatonskih, Anna | m | wg | 2470 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Rohonyan, Katerine | | wg | 2319 | USA | 1.00 | 1 | 0.51 | 15 | 7.65 | |
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) | | | | 111th Annual US Open - Jerry Hanken Memorial | Irvine, California | USA | 2010-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2045 | 2310 | 2.00 | 3 | -0.45 | 15 | -6.75 | |
| | Botez, V Alexandra | | wc | 1974 | CAN | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Berry, Jim | | | 2007 | USA | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Safin, Artur K | | | 2153 | USA | 0.00 | 1 | -0.71 | 15 | -10.65 | |
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) | | | | Pan-Armenian Chess Olympiad | Yerevan | ARM | 2010-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2373 | 2310 | 5.00 | 9 | 1.25 | 15 | 18.75 | |
| | Arutinian, David | g | | 2572 | GEO | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Sevian, Samuel | | | 2132 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Gevorgyan, Irina | | wf | 2163 | UZB | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Nakhapetiane, Pogos | f | | 2449 | RUS | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Seferjan, Narek | g | | 2441 | ARM | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Hambardzumian, Yuri | m | | 2342 | ARM | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Kalashian, David | m | | 2449 | ARM | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Matinian, Nikita | | | 2380 | RUS | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Ajrapetian, Gevorg | m | | 2427 | RUS | 0.50 | 1 | 0.16 | 15 | 2.40 | |
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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