Datkov Sergey

From Yekaterinburg, Russia

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Common russian riichi rating (CRR)

Rating date April 1, 2025 (latest changes March 30, 2025).

191 place (225.39).

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

p1 = (578.95 * 2.10 * 0.43 + 296.30 * 2.30 * 0.57 + 555.56 * 2.30 * 0.86 + 0 + 0) / (2.10 * 0.43 + 2.30 * 0.57 + 2.30 * 0.86 + 1 + 1) = 324.2477298116112

p2 = (555.56 * 2.30 * 0.86 + 578.95 * 2.10 * 0.43 + 296.30 * 2.30 * 0.57) / max_coefficients = 126.54069400630915

score = 324.2477298116112 * 0.5 + 126.54069400630915 * 0.5 = 225.39421190896016

Rating changes

Show

all results
Date Place Points Reason
2025-03-29 189 -> 191 225.39
2025-03-23 183 -> 189 225.39
2025-03-10 184 -> 183 225.39
2025-03-05 182 -> 184 227.76 -> 225.39

Finding Dora: 71% -> 57%
2025-03-03 185 -> 182 227.76
2025-03-02 182 -> 185 227.76
2025-02-27 178 -> 182 238.87 -> 227.76

13 tiles until tempai: 57% -> 43%
2025-02-25 174 -> 178 249.73 -> 238.87

Chasing Kan: 100% -> 86%
2025-02-16 165 -> 174 249.73
2025-02-11 166 -> 165 249.73

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 556 2024-02-25 13/28 86% 2.30 CRR Chasing Kan
2 296 2023-11-05 20/28 57% 2.30 CRR Finding Dora
3 579 2023-08-27 9/20 43% 2.10 CRR 13 tiles until tempai
4 737 2019-03-17 6/20 0% 2.10 RR Spring hope
5 852 2017-06-11 5/28 0% 2.10 RR Tyumen Mahjong Tournament (TMT) 2017
6 581 2017-04-16 14/32 0% 2.20 RR Second riichi mahjong tournament, Chelyabinsk 2017
7 783 2017-01-29 6/24 0% 2.20 RR The first tournament of 2017
8 957 2015-12-05 2/24 0% 1.80 RR 4 riichi mahjong tournament 2015
9 158 2015-09-27 17/20 0% 1.70 RR Plitochka
10 400 2015-08-29 10/16 0% 1.60 RR 3 riichi mahjong tournament 2015
11 1000 2015-02-22 1/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015
12 526 2014-10-25 10/20 0% 1.30 RR Autumn riichi mahjong tournament 2014
13 842 2014-06-08 4/20 0% 1.30 RR Chelyabinsk riichi mahjong championship 2017