Mamin Vladislav

Internal rating (RR)

Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).

220 place (70.84).

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

p1 = (521.74 * 2.10 * 0.29 + 115.79 * 3.85 * 0.71 + 0 + 0 + 0) / (2.10 * 0.29 + 3.85 * 0.71 + 1 + 1 + 1) = 99.4421281805977

p2 = (115.79 * 3.85 * 0.71 + 521.74 * 2.10 * 0.29) / max_coefficients = 42.238127090301006

score = 99.4421281805977 * 0.5 + 42.238127090301006 * 0.5 = 70.84012763544936

all results

Date	Place	Points	Reason
2025-12-07	215 -> 220	70.84
2025-11-30	214 -> 215	85.60 -> 70.84	Seihoku spring tournament 2024: 43% -> 29%
2025-11-12	213 -> 214	85.60
2025-11-04	207 -> 213	86.80 -> 85.60
2025-11-01	207	88.82 -> 86.80	SPB Riichi Open 2024: 86% -> 71%
2025-10-13	207	87.92 -> 88.82
2025-09-30	207	101.27 -> 87.92	Seihoku spring tournament 2024: 57% -> 43%
2025-09-03	213 -> 207	101.27
2025-09-01	213	101.83 -> 101.27	SPB Riichi Open 2024: 100% -> 86%
2025-08-31	203 -> 213	101.83

#	Base rank	Date	Place	Power	Coefficient	Rating	Tournament	City
1	116	2024-09-01	85/96	71%	3.85	RR	SPB Riichi Open 2024	Saint Petersburg
2	522	2024-03-30	23/47	29%	2.10	RR	Seihoku spring tournament 2024	Saint Petersburg
3	744	2019-06-02	11/40	0%	2.90	RR	Summer Cup 2019	Saint Petersburg
4	903	2018-03-04	4/32	0%	2.70	RR	East Cup 2018	Saint Petersburg
5	841	2017-10-22	11/64	0%	3.45	EMA	Moscow Riichi Open 2017	Moscow
6	641	2017-10-01	15/40	0%	1.80	RR	Saint Petersburg championship. Northern cup 2017	Saint Petersburg
7	400	2017-07-09	22/36	0%	3.20	RR	Moscow Open Riichi Marathon 2017	Moscow
8	581	2016-10-16	14/32	0%	1.60	RR	Tournament of 4 winds. West cup 2016	Saint Petersburg
9	290	2016-03-27	23/32	0%	1.60	RR	Tournament of 4 winds. East cup 2016	Saint Petersburg
10	556	2016-03-13	45/100	0%	3.40	RR	"Japanese House" riichi mahjong cup 2016	Moscow
11	667	2015-12-06	6/16	0%	2.00	RR	Two-day tournament of Saint Petersburg riichi mahjong league	Saint Petersburg