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Individual Calculations July 2009 |
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| Lenderman, Alex Total change: 69.80 | |   |
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| New York March Open | New York, New York | USA | 2009-03-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2247 | 2444 | 2.50 | 3 | 0.36 | 10 | 3.60 | |
|  Tuhrim, Richard J | | | 2094 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Gaspard, Fritz P | | | 2098 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Yudasin, Leonid G | g | | 2548 | 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) | | | | 31st Annual Marchand Open | Rochester, NY | USA | 2009-03-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2251 | 2444 | 3.50 | 4 | 0.64 | 10 | 6.40 | |
| | Clark, Mark J | | | 2094 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Mark, Eddie E | | | 2094 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Parry, Matt J | | | 2225 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Kacheishvili, Giorgi | g | | 2590 | GEO | 0.50 | 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) | | | | 11th Annual Foxwoods Open | Mashantucket, Connecticut | USA | 2009-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2440 | 2434 | 6.50 | 9 | 2.09 | 10 | 20.90 | |
| | Vaja, Ashish | | | 2195 | USA | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Mandizha, Farai | f | | 2313 | ZIM | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Shankland, Samuel | m | | 2446 | USA | 0.00 | 1 | -0.48 | 10 | -4.80 | | | Rodriguez, Eric | | | 2247 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Enkhbat, Tegshsuren | f | | 2377 | USA | 1.00 | 1 | 0.42 | 10 | 4.20 | | | Yermolinsky, Alex | g | | 2522 | USA | 1.00 | 1 | 0.62 | 10 | 6.20 | | | Akobian, Varuzhan | g | | 2613 | USA | 1.00 | 1 | 0.73 | 10 | 7.30 | | | Shulman, Yury | g | | 2632 | USA | 0.50 | 1 | 0.26 | 10 | 2.60 | | | Sadvakasov, Darmen | g | | 2619 | KAZ | 0.00 | 1 | -0.26 | 10 | -2.60 | |
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 New York May Open | New York, New York | USA | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2380 | 2434 | 1.50 | 3 | -0.20 | 10 | -2.00 | |
| | Maltese, Adam S | | | 2222 | USA | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Yudasin, Leonid G | g | | 2550 | ISR | 0.50 | 1 | 0.16 | 10 | 1.60 | | | Bonin, Jay | m | | 2369 | USA | 0.00 | 1 | -0.59 | 10 | -5.90 | |
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) | | | | The Copper State International | Mesa, Arizona | USA | 2009-05-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2499 | 2434 | 7.50 | 10 | 3.40 | 10 | 34.00 | |
| | Mackinnon, Keith | | | 2145 | CAN | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Gareev, Timur | g | | 2590 | UZB | 0.50 | 1 | 0.21 | 10 | 2.10 | | | Ramirez, Alejandro | g | | 2563 | CRC | 1.00 | 1 | 0.67 | 10 | 6.70 | | | Izoria, Zviad | g | | 2619 | GEO | 1.00 | 1 | 0.74 | 10 | 7.40 | | | Barcenilla Jr, Rogelio | m | | 2503 | PHI | 1.00 | 1 | 0.60 | 10 | 6.00 | | | Becerra, Julio J | g | | 2609 | USA | 1.00 | 1 | 0.73 | 10 | 7.30 | | | Kacheishvili, Giori | g | | 2613 | GEO | 0.00 | 1 | -0.27 | 10 | -2.70 | | | Yermolinsky, Alex | g | | 2522 | USA | 0.50 | 1 | 0.12 | 10 | 1.20 | | | Fernandez, Daniel | m | | 2369 | USA | 0.50 | 1 | -0.09 | 10 | -0.90 | | | Altounian, Levon | m | | 2454 | USA | 1.00 | 1 | 0.53 | 10 | 5.30 | |
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) | | | | 2009 National Open | Las Vegas, Nevada | USA | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2324 | 2434 | 4.50 | 6 | 0.69 | 10 | 6.90 | |
| | Terrie, Henry L | | | 2089 | USA | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Bournival, Braden | f | | 2294 | USA | 0.50 | 1 | -0.19 | 10 | -1.90 | | | Carreto, Giovanni | c | | 2212 | MEX | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Tate, Emory A | m | | 2325 | USA | 1.00 | 1 | 0.35 | 10 | 3.50 | | | Sharavdorj, Dashzegve | g | | 2422 | MGL | 1.00 | 1 | 0.48 | 10 | 4.80 | | | Petrosian, Tigran | g | | 2600 | ARM | 0.50 | 1 | 0.22 | 10 | 2.20 | |
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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