Perera, W Chamoth Chiranda February 2023 FIDE Individual Chess Calculations

Individual Calculations February 2023

Perera, W Chamoth Chiranda Total change: 11.20

Ethugalpura Open International Rating Chess Championships 2022			Kurunegala		SRI	2022-12-20
Rc	Ro			w	n	change	K	*Kchg**	Game
1402	1045			0.00	2	-0.21	40	-8.40

Rathnayaka, Minaga Yethmin		1420	SRI	0.00	1	-0.09	40	-3.60
Thennakoon, Disara		1384	SRI	0.00	1	-0.12	40	-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)

Kandy Open International Rating Chess Championships 2022			Kandy		SRI	2022-12-27
Rc	Ro			w	n	change	K	*Kchg**	Game
1374	1045			0.50	2	0.25	40	10.00

Gamage, A G R Ruwanmith		1348	SRI	0.50	1	0.36	40	14.40
Herath, H M S S A		1399	SRI	0.00	1	-0.11	40	-4.40
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)

Kaluthara International Chess Festival 2023			Kaluthara		SRI	2023-01-20
Rc	Ro			w	n	change	K	*Kchg**	Game
1401	1045			1.00	4	0.24	40	9.60

De Silva, Osheen		1763	SRI	0.00	1	-0.01	40	-0.40
Vithanage, P N		1023	SRI	0.50	1	-0.03	40	-1.20
Ramyasiri, Kaveen Poorna		1332	SRI	0.50	1	0.34	40	13.60
Weerasena, O V D K R		1486	SRI	0.00	1	-0.06	40	-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)

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