Rosenbach, Martin February 2023 FIDE Individual Chess Calculations

Individual Calculations February 2023

Rosenbach, Martin Total change: 1.40

Coulsdon Chess Dicky White - December			London		ENG	2022-11-28
Rc	Ro			w	n	change	K	*Kchg**	Game
1546	1752			1.00	2	-0.44	20	-8.80

Stoneman, Ian D		1355	ENG	1.00	1	0.08	20	1.60
Babu, Rahul		1737	IND	0.00	1	-0.52	20	-10.40
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)

2022/23 4NCL Division 4 Rounds 3-4			Daventry		ENG	2023-01-07
Rc	Ro			w	n	change	K	*Kchg**	Game
1665	1771			1.50	2	0.32	20	6.40

Ashton, Alannah		1371 *	ENG	1.00	1	0.08	20	1.60
Perrett, David C		1959	WLS	0.50	1	0.24	20	4.80
* 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)

Coulsdon Chess Dicky White - January			London		ENG	2023-01-09
Rc	Ro			w	n	change	K	*Kchg**	Game
1519	1771			1.00	1	0.19	20	3.80

Chaban, Roxolana		1519	ENG	1.00	1	0.19	20	3.80
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)

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