Ryabov Aleksandr

From Moscow, Russia

Internal rating (RR)

Rating date Aug. 14, 2026 (latest changes Aug. 13, 2026).

32 place (645.49).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (221.05 * 3.85 * 0.14 + 853.93 * 3.75 * 0.14 + 161.29 * 3.10 * 0.43 + 967.74 * 3 * 1 + 366.67 * 3 * 1 + 660 * 3.10 * 1 + 811.19 * 4.71 * 1) / (3.85 * 0.14 + 3.75 * 0.14 + 3.10 * 0.43 + 3 * 1 + 3 * 1 + 3.10 * 1 + 4.71 * 1) = 657.235572922766

p2 = (811.19 * 4.71 * 1 + 967.74 * 3 * 1 + 660 * 3.10 * 1 + 366.67 * 3 * 1) / max_coefficients = 633.7395844770585

score = 657.235572922766 * 0.5 + 633.7395844770585 * 0.5 = 645.4875786999123

Rating changes

Show

all results

Date	Place	Points	Reason
2026-08-13	30 -> 32	648.63 -> 645.49	Moscow Riichi 2024: 29% -> 14%
2026-08-04	29 -> 30	648.63
2026-08-03	30 -> 29	648.63
2026-08-02	31 -> 30	648.63
2026-07-25	32 -> 31	648.63
2026-07-12	31 -> 32	648.63
2026-07-07	33 -> 31	642.17 -> 648.63	Moscow Open Riichi Marathon: 57% -> 43%
2026-07-03	35 -> 33	642.17
2026-07-01	36 -> 35	635.52 -> 642.17	SPB Riichi Open 2024: 29% -> 14%
2026-06-16	37 -> 36	635.52

Tournaments

#	Base rank	Date		Place	Power	Coefficient	Rating	Tournament	City
1	811	2026-06-14		28/144	100%	4.71	RR	XII Russian Championship	Samara
2	660	2026-04-05		18/51	100%	3.10	RR	Moscow Riichi 2026	Moscow
3	367	2026-01-07		20/31	100%	3.00	RR	Moscow Open Riichi Marathon 2026	Moscow
4	968	2025-11-30	🥈	2/32	100%	3.00	RR	Final Cup 2025	Moscow
5	161	2025-01-07		27/32	43%	3.10	RR	Moscow Open Riichi Marathon	Moscow
6	854	2024-10-13		14/90	14%	3.75	RR	Moscow Riichi 2024	Moscow
7	221	2024-09-01		75/96	14%	3.85	RR	SPB Riichi Open 2024	Saint Petersburg
8	925	2024-05-12		9/108	0%	4.60	RR	X Russian Championship	Perm
9	353	2024-03-10		34/52	0%	3.05	RR	Agari Spring Tournament 2024	Moscow
10	832	2023-09-03		19/108	0%	4.00	RR	SPB Riichi Open 2023	Saint Petersburg
11	437	2023-06-11		50/88	0%	3.75	RR	Money can not buy tenpai	Perm
12	595	2022-06-12		46/112	0%	4.05	RR	Moscow Riichi 2022	Moscow