Vakhonin Stepan

Common russian riichi rating (CRR)

Rating date Jan. 18, 2026 (latest changes Jan. 15, 2026).

50 place (560.58).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (978.26 * 2.10 * 0.29 + 94.74 * 3.85 * 0.57 + 830.51 * 3.25 * 1 + 888.89 * 2 * 1 + 610.39 * 3.45 * 1) / (2.10 * 0.29 + 3.85 * 0.57 + 3.25 * 1 + 2 * 1 + 3.45 * 1) = 641.5825931793951

p2 = (830.51 * 3.25 * 1 + 610.39 * 3.45 * 1 + 888.89 * 2 * 1 + 978.26 * 2.10 * 0.29) / max_coefficients = 479.5785953177258

score = 641.5825931793951 * 0.5 + 479.5785953177258 * 0.5 = 560.5805942485604

Rating changes

Show

all results

Date	Place	Points	Reason
2026-01-12	52 -> 50	560.58
2026-01-07	50 -> 52	560.58
2026-01-03	51 -> 50	560.58
2026-01-01	55 -> 51	548.10 -> 560.58	SPB Riichi Open 2024: 71% -> 57%
2025-12-29	56 -> 55	548.10
2025-12-27	55 -> 56	548.10
2025-12-13	56 -> 55	548.10
2025-12-07	52 -> 56	548.10
2025-12-04	55 -> 52	548.10
2025-11-30	52 -> 55	562.31 -> 548.10	Seihoku spring tournament 2024: 43% -> 29%

Tournaments

#	Base rank	Date		Place	Power	Coefficient	Rating	Tournament	City
1	610	2025-08-31		31/78	100%	3.45	RR	SPB Riichi Open 2025	Saint Petersburg
2	889	2025-06-14	🥉	3/19	100%	2.00	CRR	Tonpu-master	Saint Petersburg
3	831	2025-02-16		11/60	100%	3.25	RR	White Wolf Cup	Saint Petersburg
4	95	2024-09-01		87/96	57%	3.85	RR	SPB Riichi Open 2024	Saint Petersburg
5	978	2024-03-30	🥈	2/47	29%	2.10	RR	Seihoku spring tournament 2024	Saint Petersburg
6	953	2023-09-03		6/108	0%	4.00	RR	SPB Riichi Open 2023	Saint Petersburg
7	696	2023-04-22		8/24	0%	1.40	CRR	Fire cup 2023	Saint Petersburg
8	774	2023-02-25		8/32	0%	1.80	CRR	Earth cup	Saint Petersburg
9	795	2022-08-27		9/40	0%	1.80	CRR	Sun tournament	Saint Petersburg
10	198	2022-06-12		90/112	0%	4.05	RR	Moscow Riichi 2022	Moscow
11	173	2021-11-28		63/76	0%	3.45	RR	Saint Petersburg Open 2021	Saint Petersburg
12	222	2019-11-24		50/64	0%	3.45	EMA	Saint Petersburg Open 2019	Saint Petersburg
13	0	2019-06-02		40/40	0%	2.90	RR	Summer Cup 2019	Saint Petersburg