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Individual Calculations September 2009 |
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| Ippolito, Dean J Total change: 4.40 | |   |
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| 2nd New York International | New York, NY | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2390 | 2443 | 5.50 | 9 | 0.37 | 10 | 3.70 | |
|  Balasubramanian, Adit | | | 2212 | IND | 1.00 | 1 | 0.21 | 10 | 2.10 | |  Gerzhoy, Leonid | m | | 2420 | CAN | 0.00 | 1 | -0.53 | 10 | -5.30 | | | Zhao, Parker B | | | 2301 | USA | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Sorkin, Igor | | | 2345 | ISR | 0.50 | 1 | -0.13 | 10 | -1.30 | | | Kleiman, Jake | f | | 2326 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Ehlvest, Jaan | g | | 2606 | USA | 0.50 | 1 | 0.22 | 10 | 2.20 | | | Kacheishvili, Giorgi | g | | 2613 | GEO | 0.00 | 1 | -0.28 | 10 | -2.80 | | | Ravichandran, Siddhar | | | 2303 | IND | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Molner, Mackenzie | | | 2384 | USA | 0.50 | 1 | -0.08 | 10 | -0.80 | |
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 Philadelphia International | Philadelphia, Pennsylvania | USA | 2009-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2351 | 2443 | 6.00 | 9 | 0.48 | 10 | 4.80 | |
| | Heinis, Vincent | | | 2193 | FRA | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Ravichandran, Siddharth | | | 2303 | IND | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Stopa, Jacek | m | | 2471 | POL | 0.00 | 1 | -0.46 | 10 | -4.60 | | | Fernandez, Daniel | m | | 2369 | USA | 0.50 | 1 | -0.10 | 10 | -1.00 | | | Naroditsky, Daniel | f | | 2335 | USA | 0.50 | 1 | -0.15 | 10 | -1.50 | | | Saperstein, Craig | | | 2093 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Yeager, Daniel A | f | | 2372 | USA | 1.00 | 1 | 0.40 | 10 | 4.00 | | | Shankland, Samuel | m | | 2446 | USA | 0.50 | 1 | 0.00 | 10 | 0.00 | | | Stocek, Jiri | g | | 2573 | CZE | 0.50 | 1 | 0.18 | 10 | 1.80 | |
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) | | | | 2009 NJ Futurity | Branchburg, New Jersey | USA | 2009-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2465 | 2455 | 4.50 | 10 | -0.36 | 10 | -3.60 | |
| | Ju, Evan D | f | | 2316 | USA | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Ju, Evan D | f | | 2316 | USA | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Kraai, Jesse | g | | 2498 | USA | 0.00 | 1 | -0.44 | 10 | -4.40 | | | Kraai, Jesse | g | | 2498 | USA | 0.00 | 1 | -0.44 | 10 | -4.40 | | | Scekic, Milos | m | | 2382 | SRB | 0.50 | 1 | -0.10 | 10 | -1.00 | | | Scekic, Milos | m | | 2382 | SRB | 0.50 | 1 | -0.10 | 10 | -1.00 | | | Benjamin, Joel | g | | 2575 | USA | 0.00 | 1 | -0.34 | 10 | -3.40 | | | Benjamin, Joel | g | | 2575 | USA | 0.00 | 1 | -0.34 | 10 | -3.40 | | | Yudasin, Leonid G | g | | 2554 | ISR | 1.00 | 1 | 0.64 | 10 | 6.40 | | | Yudasin, Leonid G | g | | 2554 | ISR | 0.50 | 1 | 0.14 | 10 | 1.40 | |
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) | | | | Dean of Chess Academy TransNet FIDE Invitational | Branchburg, New Jersey | USA | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2113 | 2455 | 7.50 | 9 | -0.43 | 10 | -4.30 | |
| | Wu, Christopher | | | 2153 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Chen, Kevin E | | | 2081 | USA | 1.00 | 1 | 0.10 | 10 | 1.00 | | | West, James R | | | 2162 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Hall, Timothy J | | | 2118 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Swaminathan, Rahul | | | 2060 | USA | 0.50 | 1 | -0.42 | 10 | -4.20 | | | Ferrero, Steve | | | 2153 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Grasso, David | | | 2131 | USA | 0.00 | 1 | -0.87 | 10 | -8.70 | | | Somers Jr, Michael | | | 2055 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Feuerstein, Arthur | | | 2106 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | * 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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2372 | 2455 | 4.00 | 6 | 0.38 | 10 | 3.80 | |
| | Hughes, Tyler B | | | 2278 | USA | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Finegold, Benjamin | m | | 2513 | USA | 0.50 | 1 | 0.08 | 10 | 0.80 | | | Sevillano, Enrico | m | | 2528 | USA | 0.50 | 1 | 0.10 | 10 | 1.00 | | | Stopa, Jacek | m | | 2471 | POL | 0.50 | 1 | 0.02 | 10 | 0.20 | | | Wasiluk, Kevin M | | | 2220 | USA | 0.50 | 1 | -0.29 | 10 | -2.90 | | | Studen, Damir | | | 2219 | USA | 1.00 | 1 | 0.20 | 10 | 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) | | |
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