Gray, David February 2023 FIDE Individual Chess Calculations

Individual Calculations February 2023

Gray, David Total change: -0.20

Coulsdon Chess Dicky White - December			London		ENG	2022-11-28
Rc	Ro			w	n	change	K	*Kchg**	Game
1120	1029			1.00	2	0.25	20	5.00

Marsden, Oscar		1133	ENG	1.00	1	0.64	20	12.80
Kesaev, Timur		1107	ENG	0.00	1	-0.39	20	-7.80
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)

Coulsdon Chess Dicky White - January			London		ENG	2023-01-09
Rc	Ro			w	n	change	K	*Kchg**	Game
1397	1002			0.00	1	-0.08	20	-1.60

Pratley, Ian		1397	ENG	0.00	1	-0.08	20	-1.60
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)

Coulsdon Chess Daytime Chess January 2023			Coulsdon		ENG	2023-01-18
Rc	Ro			w	n	change	K	*Kchg**	Game
1261	1002			0.00	1	-0.18	20	-3.60

Woolley, Michael P		1261	ENG	0.00	1	-0.18	20	-3.60
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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