Sychev Ivan

From Saint Petersburg, Russia

EMA: 15990298

Player page

Common russian riichi rating (CRR)

Rating date July 5, 2025 (latest changes July 5, 2025).

229 place (170.60).

max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266

p1 = (897.20 * 4 * 0.14 + 444.44 * 2 * 1 + 0 + 0 + 0) / (4 * 0.14 + 2 * 1 + 1 + 1 + 1) = 251.58482303108622

p2 = (444.44 * 2 * 1 + 897.20 * 4 * 0.14) / max_coefficients = 89.60943982673024

score = 251.58482303108622 * 0.5 + 89.60943982673024 * 0.5 = 170.59713142890823

Rating changes

Show

all results
Date Place Points Reason
2025-07-03 208 -> 229 216.99 -> 170.60

SPB Riichi Open 2023: 29% -> 14%
2025-06-15 199 -> 208 218.81 -> 216.99
2025-06-14 193 -> 199 224.72 -> 218.81

Tonpu-master: 0% -> 100%
2025-04-13 191 -> 193 224.72
2025-04-11 192 -> 191 224.72
2025-03-30 193 -> 192 224.72
2025-03-29 191 -> 193 224.72
2025-03-23 185 -> 191 224.72
2025-03-10 186 -> 185 224.72
2025-03-03 159 -> 186 269.74 -> 224.72

SPB Riichi Open 2023: 57% -> 43%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 444 2025-06-14 11/19 100% 2.00 CRR Tonpu-master Saint Petersburg
2 897 2023-09-03 12/108 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
3 739 2023-04-22 7/24 0% 1.40 CRR Fire cup 2023 Saint Petersburg
4 856 2019-12-15 17/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
5 667 2019-11-24 22/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
6 615 2018-12-23 16/40 0% 2.90 RR North Cup 2018 Saint Petersburg
7 565 2018-09-23 11/24 0% 2.50 RR West cup 2018 Saint Petersburg
8 958 2018-06-11 4/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
9 419 2018-03-04 19/32 0% 2.70 RR East Cup 2018 Saint Petersburg
10 940 2017-12-11 6/84 0% 3.40 EMA VI Russian Riichi Championship 2017 Saint Petersburg
11 821 2017-10-01 8/40 0% 1.80 RR Saint Petersburg championship. Northern cup 2017 Saint Petersburg
12 103 2017-06-03 36/40 0% 1.80 RR Saint Petersburg championship. West cup 2017 Saint Petersburg
13 744 2017-03-18 12/44 0% 1.90 RR Saint Petersburg championship. South cup 2017 Saint Petersburg
14 620 2016-12-04 28/72 0% 3.25 EMA Saint Petersburg Riichi Open 2016 Saint Petersburg
15 613 2016-10-16 13/32 0% 1.60 RR Tournament of 4 winds. West cup 2016 Saint Petersburg