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Individual Calculations June 2015 |
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| Porter, Liam Total change: 6.80 | |   |
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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 |
| 1736 | 1984 | 0.50 | 1 | -0.31 | 20 | -6.20 | |
|  Armstrong, Fred | | | 1736 | IRL | 0.50 | 1 | -0.31 | 20 | -6.20 | |
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 |
| 1959 | 1984 | 1.00 | 1 | 0.47 | 20 | 9.40 | |
| | Smith, Gerard | | | 1959 | IRL | 1.00 | 1 | 0.47 | 20 | 9.40 | |
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 3 | Dublin | IRL | 2014-10-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1947 | 1984 | 0.50 | 1 | -0.05 | 20 | -1.00 | |
| | Beckett, Brian | | | 1947 | IRL | 0.50 | 1 | -0.05 | 20 | -1.00 | |
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 4 | Dublin | IRL | 2014-11-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1880 | 1984 | 0.50 | 1 | -0.14 | 20 | -2.80 | |
| | Egan, Colm | | | 1880 | IRL | 0.50 | 1 | -0.14 | 20 | -2.80 | |
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 5 | Dublin | IRL | 2014-11-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2094 | 1984 | 1.00 | 1 | 0.65 | 20 | 13.00 | |
| | Harding, Tim D | | | 2094 | IRL | 1.00 | 1 | 0.65 | 20 | 13.00 | |
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 6 | Dublin | IRL | 2015-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1905 | 1984 | 0.50 | 1 | -0.11 | 20 | -2.20 | |
|  Jackson, Peter D. | | | 1905 | IRL | 0.50 | 1 | -0.11 | 20 | -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) | | | | 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 |
| 2190 | 1984 | 0.00 | 1 | -0.24 | 20 | -4.80 | |
| | O`donnell, Conor | | | 2190 | IRL | 0.00 | 1 | -0.24 | 20 | -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) | | | | 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 |
| 1867 | 1984 | 0.50 | 1 | -0.16 | 20 | -3.20 | |
| | Minnock, Eoin | | | 1867 | 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 10 | Dublin | IRL | 2015-03-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1987 | 1984 | 0.50 | 1 | 0.00 | 20 | 0.00 | |
| | Aherne, John P. | | | 1987 | IRL | 0.50 | 1 | 0.00 | 20 | 0.00 | |
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 11 | Dublin | IRL | 2015-04-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1745 | 1984 | 1.00 | 1 | 0.20 | 20 | 4.00 | |
| | Burke, Kevin A. | | | 1745 | IRL | 1.00 | 1 | 0.20 | 20 | 4.00 | |
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) | | | | Malahide Millennium Tournament 2015 | Dublin | IRL | 2015-05-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1987 | 1984 | 2.50 | 5 | 0.03 | 20 | 0.60 | |
| | Cichonski, Bartlomiej | | | 2026 | IRL | 1.00 | 1 | 0.56 | 20 | 11.20 | | | Spirek, Adam | | | 2106 | CZE | 0.50 | 1 | 0.17 | 20 | 3.40 | | | Gallik, Miroslav | | | 1971 | CZE | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Tirziman, Rudolf | | | 1858 | IRL | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Keogh, Eamon | | | 1974 | IRL | 0.00 | 1 | -0.51 | 20 | -10.20 | |
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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