Sychev Ivan

From Saint Petersburg, Russia

EMA: 15990298

Player page

Common russian riichi rating (CRR)

Rating date March 4, 2025 (latest changes March 3, 2025).

186 place (224.72).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (739.13 * 1.40 * 0.14 + 897.20 * 4 * 0.43 + 0 + 0 + 0) / (1.40 * 0.14 + 4 * 0.43 + 1 + 1 + 1) = 343.0732979818739

p2 = (897.20 * 4 * 0.43 + 739.13 * 1.40 * 0.14) / max_coefficients = 106.37350157728707

score = 343.0732979818739 * 0.5 + 106.37350157728707 * 0.5 = 224.7233997795805

Rating changes

Show

all results
Date Place Points Reason
2025-03-03 159 -> 186 269.74 -> 224.72

SPB Riichi Open 2023: 57% -> 43%
2025-03-02 156 -> 159 269.74
2025-02-25 160 -> 156 269.74
2025-02-22 155 -> 160 280.35 -> 269.74

Fire cup 2023: 29% -> 14%
2025-02-16 148 -> 155 280.35
2025-02-11 152 -> 148 280.35
2025-02-02 145 -> 152 280.35
2025-01-26 141 -> 145 280.35
2025-01-07 138 -> 141 280.35
2025-01-04 135 -> 138 280.35

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 897 2023-09-03 12/108 43% 4.00 RR SPB Riichi Open 2023
2 739 2023-04-22 7/24 14% 1.40 CRR Fire cup 2023
3 856 2019-12-15 17/112 0% 4.05 EMA VIII Russian Riichi Championship
4 667 2019-11-24 22/64 0% 3.45 EMA Saint Petersburg Open 2019
5 615 2018-12-23 16/40 0% 2.90 RR North Cup 2018
6 565 2018-09-23 11/24 0% 2.50 RR West cup 2018
7 958 2018-06-11 4/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018
8 419 2018-03-04 19/32 0% 2.70 RR East Cup 2018
9 940 2017-12-11 6/84 0% 3.40 EMA VI Russian Riichi Championship 2017
10 821 2017-10-01 8/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017
11 103 2017-06-03 36/40 0% 1.80 RR Saint Petersburg championship. West cup 2017
12 744 2017-03-18 12/44 0% 1.90 RR Saint Petersburg championship. South cup 2017
13 620 2016-12-04 28/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016
14 613 2016-10-16 13/32 0% 1.60 RR Tournament of 4 winds. West cup 2016