De Silva, Osheen September 2011 FIDE Individual Chess Calculations

Individual Calculations September 2011

De Silva, Osheen Total change: -23.10

Sri Lanka Major Division Colombo Chess Championship, 2011			Colombo		SRI	2011-07-08
Rc	Ro			w	n	change	K	*Kchg**	Game
1675	1944			4.00	6	-0.89	15	-13.35

Madushanka, H G D		1544 *	SRI	1.00	1	0.08	15	1.20
Kumarawadu, C S		1692	SRI	0.50	1	-0.31	15	-4.65
Viththiyatharan, S		1706	SRI	1.00	1	0.20	15	3.00
Senanayaka, P D		1835	SRI	0.00	1	-0.65	15	-9.75
Perera, A K N A		1670	SRI	0.50	1	-0.33	15	-4.95
De Silva, Chamindra		1605	SRI	1.00	1	0.12	15	1.80
* 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)

Mora Kings International Rating Chess Championship 2011			Moratuwa		SRI	2011-08-04
Rc	Ro			w	n	change	K	*Kchg**	Game
1748	1944			4.50	7	-0.65	15	-9.75

Obesekara, T A S Chathuranga		1643	SRI	1.00	1	0.15	15	2.25
Madushan, K D Tharusha		1633	SRI	0.50	1	-0.36	15	-5.40
Weerakoon, D D P		1686	SRI	1.00	1	0.18	15	2.70
Sumit, Grover		2075	IND	0.00	1	-0.32	15	-4.80
Jayarathne, M N G		1762	SRI	0.50	1	-0.24	15	-3.60
Koggala, W S T D		1690	SRI	1.00	1	0.19	15	2.85
Yashora, Tiumi		1747	SRI	0.50	1	-0.25	15	-3.75
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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