Yakovlev Andrey

Common russian riichi rating (CRR)

Rating date Feb. 8, 2026 (latest changes Feb. 4, 2026).

86 place (479.54).

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

p1 = (478.26 * 2.10 * 0.14 + 733.33 * 1.80 * 0.71 + 1000 * 0.90 * 1 + 666.67 * 2 * 1 + 652.17 * 1.20 * 1 + 565.22 * 1.20 * 1) / (2.10 * 0.14 + 1.80 * 0.71 + 0.90 * 1 + 2 * 1 + 1.20 * 1 + 1.20 * 1) = 694.2663411672958

p2 = (666.67 * 2 * 1 + 733.33 * 1.80 * 0.71 + 1000 * 0.90 * 1 + 652.17 * 1.20 * 1) / max_coefficients = 264.8040133779264

score = 694.2663411672958 * 0.5 + 264.8040133779264 * 0.5 = 479.5351772726111

Rating changes

Show

all results

Date	Place	Points	Reason
2026-02-02	87 -> 86	479.54
2026-01-30	88 -> 87	475.03 -> 479.54	Seihoku spring tournament 2024: 29% -> 14%
2026-01-25	83 -> 88	475.03
2026-01-12	86 -> 83	475.03
2026-01-07	85 -> 86	475.03
2026-01-01	86 -> 85	475.03
2025-12-27	82 -> 86	482.16 -> 475.03	Happy Bamboo 2024: 86% -> 71%
2025-12-25	81 -> 82	482.16
2025-12-13	82 -> 81	482.16
2025-12-07	80 -> 82	482.16

Tournaments

#	Base rank	Date		Place	Power	Coefficient	Rating	Tournament	City
1	565	2025-12-06		11/24	100%	1.20	CRR	Riichi on fire	Simferopol
2	652	2025-07-26		9/24	100%	1.20	CRR	Pands in discards	Simferopol
3	667	2025-04-27		6/16	100%	2.00	RR	South Dragon Cup II	Simferopol
4	1000	2025-03-29	🥇	1/12	100%	0.90	CRR	The Southern Coon Mini Cup	Simferopol
5	733	2024-10-27		5/16	71%	1.80	CRR	Happy Bamboo 2024	Simferopol
6	478	2024-03-30		25/47	14%	2.10	RR	Seihoku spring tournament 2024	Saint Petersburg
7	460	2019-11-24		35/64	0%	3.45	EMA	Saint Petersburg Open 2019	Saint Petersburg
8	639	2019-05-04		31/84	0%	4.20	EMA	Haru Shanten 2019	Perm
9	84	2017-12-11		77/84	0%	3.40	EMA	VI Russian Riichi Championship 2017	Saint Petersburg
10	859	2016-12-04		11/72	0%	3.25	EMA	Saint Petersburg Riichi Open 2016	Saint Petersburg
11	43	2015-03-01		23/24	0%	1.40	EMA	Crimean Riichi Open 2015	Simferopol
12	630	2013-11-24		11/28	0%	1.50	EMA	Crimean Riichi Open 2013	Simferopol