Yakovlev Andrey

From Simferopol, Russia

EMA: 15990293

Player page

Common russian riichi rating (CRR)

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

82 place (482.16).

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

p1 = (478.26 * 2.10 * 0.29 + 733.33 * 1.80 * 0.86 + 1000 * 0.90 * 1 + 666.67 * 2 * 1 + 652.17 * 1.20 * 1 + 565.22 * 1.20 * 1) / (2.10 * 0.29 + 1.80 * 0.86 + 0.90 * 1 + 2 * 1 + 1.20 * 1 + 1.20 * 1) = 686.9114238688657

p2 = (666.67 * 2 * 1 + 733.33 * 1.80 * 0.86 + 1000 * 0.90 * 1 + 652.17 * 1.20 * 1) / max_coefficients = 277.41204013377927

score = 686.9114238688657 * 0.5 + 277.41204013377927 * 0.5 = 482.16173200132243

Rating changes

Show

all results
Date Place Points Reason
2025-12-07 80 -> 82 482.16
2025-12-06 76 -> 80 493.86 -> 482.16

Riichi on fire: 0% -> 100%
2025-11-30 77 -> 76 488.54 -> 493.86

Seihoku spring tournament 2024: 43% -> 29%
2025-11-22 76 -> 77 488.54
2025-11-14 77 -> 76 488.54
2025-11-12 79 -> 77 488.54
2025-11-10 80 -> 79 488.54
2025-11-04 79 -> 80 494.84 -> 488.54
2025-11-01 79 494.34 -> 494.84
2025-10-27 78 -> 79 501.55 -> 494.34

Happy Bamboo 2024: 100% -> 86%

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 86% 1.80 CRR Happy Bamboo 2024 Simferopol
6 478 2024-03-30 25/47 29% 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