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Individual Calculations September 2009 |
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| Ravichandran, Siddharth Total change: 105.75 | |   |
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| 2nd New York International | New York, NY | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2340 | 2303 | 5.00 | 9 | 0.95 | 15 | 14.25 | |
|  Farber, Nelson M | | | 2001 | USA | 1.00 | 1 | 0.15 | 15 | 2.25 | |  Milman, Lev | m | | 2462 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Hracek, Zbyneil | g | | 2604 | CZE | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Molner, Mackenzie | | | 2384 | USA | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Figler, Ilye | f | | 2319 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Sarkar, Justin | m | | 2410 | USA | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Getz, Alec | f | | 2229 | USA | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Ippolito, Dean J | m | | 2443 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Harper, Ryan | f | | 2206 | TRI | 1.00 | 1 | 0.37 | 15 | 5.55 | |
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 |
| 2406 | 2303 | 5.50 | 9 | 2.16 | 15 | 32.40 | |
| | Naroditsky, Alan J | | | 2120 | USA | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Ippolito, Dean J | m | | 2443 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Odeh, Kenneth | | | 1999 | NGR | 1.00 | 1 | 0.14 | 15 | 2.10 | | | Hansen, Eric | f | | 2398 | CAN | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Mikhalevski, Victor | g | | 2625 | ISR | 1.00 | 1 | 0.87 | 15 | 13.05 | | | Gareev, Timur | g | | 2590 | UZB | 1.00 | 1 | 0.84 | 15 | 12.60 | | | Stopa, Jacek | m | | 2471 | POL | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Stocek, Jiri | g | | 2573 | CZE | 0.50 | 1 | 0.33 | 15 | 4.95 | | | Lenderman, Alex | m | | 2434 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | |
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) | | | | 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2262 | 2303 | 6.50 | 8 | 2.10 | 15 | 31.50 | |
| | Collier, Philip M | | | 2106 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Iwu, Okechukwu A | | | 2198 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Bournival, Braden | f | | 2294 | USA | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Sarkar, Justin | m | | 2410 | USA | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Mandizha, Farai | f | | 2313 | ZIM | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Morrison, William | f | | 2324 | USA | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Vazquez, Raul | | | 2107 | PUR | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Sorkin, Igor | | | 2345 | ISR | 0.50 | 1 | 0.06 | 15 | 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) | | | | 15th Annual Northeast Open | Stamford, Connecticut | USA | 2009-08-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2285 | 2306 | 1.50 | 2 | 0.46 | 15 | 6.90 | |
| | Perez-Billinghurst, Ricardo | | | 2109 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Rohde, Michael A | g | | 2460 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | |
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) | | | | 39th Annual Continental Open | Sturbridge, Massachusetts | USA | 2009-08-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2414 | 2306 | 2.50 | 3 | 1.38 | 15 | 20.70 | |
| | Ivanov, Alexander | g | | 2527 | USA | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Perez Billinghurst, Ricardo | | | 2109 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Kacheishvili, Giorgi | g | | 2606 | GEO | 1.00 | 1 | 0.85 | 15 | 12.75 | |
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) | | |
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