Matrosova Natalia

EMA: 15020064

Internal rating (RR)

Rating date March 31, 2025 (latest changes March 30, 2025).

140 place (263.42).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (195.40 * 3.75 * 0.29 + 411.21 * 4 * 0.43 + 242.99 * 4.60 * 1 + 489.36 * 2.80 * 1 + 303.80 * 3.65 * 1 + 0 * 3.85 * 1 + 258.06 * 2.40 * 1) / (3.75 * 0.29 + 4 * 0.43 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1 + 2.40 * 1) = 255.43052234728313

p2 = (489.36 * 2.80 * 1 + 242.99 * 4.60 * 1 + 303.80 * 3.65 * 1 + 411.21 * 4 * 0.43) / max_coefficients = 271.40820189274444

score = 255.43052234728313 * 0.5 + 271.40820189274444 * 0.5 = 263.4193621200138

Rating changes

Show

all results

Date	Place	Points	Reason
2025-03-03	140	272.98 -> 263.42	SPB Riichi Open 2023: 57% -> 43%
2025-03-02	135 -> 140	273.09 -> 272.98	Riichi Maslenitsa (shrovetide): 0% -> 100%
2025-02-16	128 -> 135	273.09
2025-02-11	131 -> 128	272.17 -> 273.09	Money can not buy tenpai: 43% -> 29%
2025-02-02	124 -> 131	272.17
2025-01-26	118 -> 124	272.17
2025-01-07	114 -> 118	272.17
2025-01-03	112 -> 114	281.85 -> 272.17	SPB Riichi Open 2023: 71% -> 57%
2024-12-11	114 -> 112	280.94 -> 281.85	Money can not buy tenpai: 57% -> 43%
2024-11-06	120 -> 114	280.94

Tournaments

#	Base rank	Date	Place	Power	Coefficient	Type	Tournament
1	258	2025-03-02	24/32	100%	2.40	RR	Riichi Maslenitsa (shrovetide)
2	0	2024-09-01	96/96	100%	3.85	RR	SPB Riichi Open 2024
3	304	2024-08-04	56/80	100%	3.65	RR	Riichi over Volga
4	489	2024-07-14	25/48	100%	2.80	RR	Guardian of the Winds
5	243	2024-05-12	82/108	100%	4.60	RR	X Russian Championship
6	411	2023-09-03	64/108	43%	4.00	RR	SPB Riichi Open 2023
7	195	2023-06-11	71/88	29%	3.75	RR	Money can not buy tenpai
8	672	2022-03-20	23/68	0%	3.50	RR	Tenpai can't buy happiness
9	609	2019-06-16	10/24	0%	2.20	RR	URAL Mahjong Battle
10	211	2018-05-01	57/72	0%	3.85	EMA	Haru Shanten 2018
11	70	2017-11-12	67/72	0%	3.25	EMA	Perm Riichi 2017 Aki Shanten
12	0	2017-07-30	24/24	0%	2.20	RR	Summer EMA rules tournament 2017