Ryabov Aleksandr

From Moscow, Russia

Common russian riichi rating (CRR)

Rating date Sept. 6, 2024 (latest changes Sept. 6, 2024).

28 place (638.87).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284

p1 = (347.83 * 2.80 * 0.29 + 436.78 * 3.75 * 0.71 + 831.78 * 4 * 0.86 + 363.64 * 2.10 * 1 + 897.44 * 2.90 * 1 + 352.94 * 3.05 * 1 + 925.23 * 4.60 * 1 + 387.10 * 1.80 * 1 + 221.05 * 3.85 * 1) / (2.80 * 0.29 + 3.75 * 0.71 + 4 * 0.86 + 2.10 * 1 + 2.90 * 1 + 3.05 * 1 + 4.60 * 1 + 1.80 * 1 + 3.85 * 1) = 577.0797261155984

p2 = (925.23 * 4.60 * 1 + 831.78 * 4 * 0.86 + 897.44 * 2.90 * 1 + 436.78 * 3.75 * 0.71) / max_coefficients = 700.6684526416115

score = 577.0797261155984 * 0.5 + 700.6684526416115 * 0.5 = 638.8740893786049

Rating changes

Show

all results

Date	Place	Points	Reason
2024-09-06	29 -> 28	638.87
2024-09-03	25 -> 29	644.03 -> 638.87	SPB Riichi Open 2023: 100% -> 86%
2024-09-01	14 -> 25	694.21 -> 644.03	SPB Riichi Open 2024: 0% -> 100%
2024-08-18	14	691.54 -> 694.21	Meeting in the billiard room: 43% -> 29%
2024-08-11	13 -> 14	692.77 -> 691.54	Money can not buy tenpai: 86% -> 71%
2024-08-04	10 -> 13	707.90 -> 692.77
2024-07-14	8 -> 10	707.90
2024-06-18	8	705.42 -> 707.90	Meeting in the billiard room: 57% -> 43%
2024-06-11	11 -> 8	696.89 -> 705.42	Money can not buy tenpai: 100% -> 86%
2024-06-09	10 -> 11	696.89

Tournaments

#	Base rank	Date	Place	Power	Coefficient	Type	Tournament
1	221	2024-09-01	75/96	100%	3.85	RR	SPB Riichi Open 2024
2	387	2024-05-19	20/32	100%	1.80	CRR	"Green Dragon" in the Secret Chamber
3	925	2024-05-12	9/108	100%	4.60	RR	X Russian Championship
4	353	2024-03-10	34/52	100%	3.05	RR	Agari Spring Tournament 2024
5	897	2023-11-26	5/40	100%	2.90	CRR	Autumn Agari tournament
6	364	2023-10-22	15/23	100%	2.10	CRR	Mushroom League
7	832	2023-09-03	19/108	86%	4.00	RR	SPB Riichi Open 2023
8	437	2023-06-11	50/88	71%	3.75	RR	Money can not buy tenpai
9	348	2022-12-18	16/24	29%	2.80	CRR	Meeting in the billiard room
10	595	2022-06-12	46/112	0%	4.05	RR	Moscow Riichi 2022