Boersma, David May 2022 FIDE Individual Chess Calculations

Individual Calculations May 2022

Boersma, David Total change: -24.40

DD Den Haag Open Schaakkampioenschap 2022 Round 4-7			Den Haag		NED	2022-03-30
Rc	Ro			w	n	change	K	*Kchg**	Game
1511	1828			0.50	2	-1.21	20	-24.20

Tjin A Lien, Ike		1594	NED	0.50	1	-0.29	20	-5.80
Mackowiak, Martin		1428 *	POL	0.00	1	-0.92	20	-18.40
* 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)

Dutch Team Competition 2021-2022 - Klasse 3 Round 8			various		NED	2022-04-02
Rc	Ro			w	n	change	K	*Kchg**	Game
2048	1823			0.00	1	-0.22	20	-4.40

Sturm, Pieter		2048	NED	0.00	1	-0.22	20	-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)

Dutch Team Competition 2021-2022 - Klasse 3 Round 9			various		NED	2022-04-23
Rc	Ro			w	n	change	K	*Kchg**	Game
1985	1823			0.50	1	0.21	20	4.20

Westerweele, Henrik		1985	NED	0.50	1	0.21	20	4.20
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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