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Individual Calculations June 2015 |
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| O`connor, Jonathan Total change: -1.20 | |   |
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| Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 1 | Dublin | IRL | 2014-09-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2029 | 2147 | 0.50 | 1 | -0.16 | 20 | -3.20 | |
|  Butler, Kevin | | | 2029 | IRL | 0.50 | 1 | -0.16 | 20 | -3.20 | |
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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 2 | Dublin | IRL | 2014-10-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2315 | 2147 | 0.00 | 1 | -0.28 | 20 | -5.60 | |
|  Brady, Stephen | f | | 2315 | IRL | 0.00 | 1 | -0.28 | 20 | -5.60 | |
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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 3 | Dublin | IRL | 2014-10-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 2147 | 1.00 | 1 | 0.33 | 20 | 6.60 | |
| | Brezing, Thomas | | | 2021 | IRL | 1.00 | 1 | 0.33 | 20 | 6.60 | |
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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 4 | Dublin | IRL | 2014-11-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2078 | 2147 | 0.50 | 1 | -0.10 | 20 | -2.00 | |
| | Jakubauskas, Zygimantas | | | 2078 | LTU | 0.50 | 1 | -0.10 | 20 | -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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 5 | Dublin | IRL | 2014-11-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2026 | 2147 | 1.00 | 1 | 0.34 | 20 | 6.80 | |
| | Fox, Anthony | | | 2026 | IRL | 1.00 | 1 | 0.34 | 20 | 6.80 | |
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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 6 | Dublin | IRL | 2015-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2485 | 2147 | 0.00 | 1 | -0.12 | 20 | -2.40 | |
| | Baburin, Alexander | g | | 2485 | IRL | 0.00 | 1 | -0.12 | 20 | -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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 7 | Dublin | IRL | 2015-01-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1991 | 2147 | 1.00 | 1 | 0.29 | 20 | 5.80 | |
| | Skrzypnik, Tomasz | | | 1991 | POL | 1.00 | 1 | 0.29 | 20 | 5.80 | |
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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 8 | Dublin | IRL | 2015-02-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1980 | 2147 | 1.00 | 1 | 0.28 | 20 | 5.60 | |
| | Marzec, Karol | | | 1980 | POL | 1.00 | 1 | 0.28 | 20 | 5.60 | |
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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 9 | Dublin | IRL | 2015-02-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2008 | 2147 | 0.00 | 1 | -0.69 | 20 | -13.80 | |
| | Duffy, Seamus | | | 2008 | IRL | 0.00 | 1 | -0.69 | 20 | -13.80 | |
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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 10 | Dublin | IRL | 2015-03-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2272 | 2147 | 0.00 | 1 | -0.33 | 20 | -6.60 | |
| | McPhillips, Karl | | | 2272 | IRL | 0.00 | 1 | -0.33 | 20 | -6.60 | |
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) | | | | Leinster Chess Union Div 1 Armstrong Cup 2014-15 Round 11 | Dublin | IRL | 2015-04-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2478 | 2147 | 0.50 | 1 | 0.38 | 20 | 7.60 | |
| | Collins, Sam E. | m | | 2478 | IRL | 0.50 | 1 | 0.38 | 20 | 7.60 | |
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) | | |
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