Datkov Sergey

From Yekaterinburg, Russia

Player page

Internal rating (RR)

Rating date Oct. 29, 2026 (latest changes Oct. 27, 2026).

239 place (115.15).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (171.43 * 2.50 * 1 + 322.58 * 2.40 * 1 + 0 + 0 + 0) / (2.50 * 1 + 2.40 * 1 + 1 + 1 + 1) = 152.24810126582278

p2 = (322.58 * 2.40 * 1 + 171.43 * 2.50 * 1) / max_coefficients = 78.05061648280338

score = 152.24810126582278 * 0.5 + 78.05061648280338 * 0.5 = 115.14935887431308

Rating changes

Show

all results
Date Place Points Reason
2026-10-16 241 -> 239 115.15
2026-10-13 247 -> 241 115.15
2026-09-06 241 -> 247 115.15
2026-09-01 247 -> 241 115.15
2026-08-31 247 115.02 -> 115.15
2026-08-27 248 -> 247 115.02
2026-08-16 242 -> 248 115.02
2026-08-15 242 114.74 -> 115.02
2026-08-13 244 -> 242 114.74
2026-08-04 248 -> 244 114.74

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 323 2026-07-12 22/32 100% 2.40 RR Poplar fluff. Mahjong. July. Yekaterinburg
2 171 2026-02-08 30/36 100% 2.50 RR One tsumo until spring Yekaterinburg
3 737 2019-03-17 6/20 0% 2.10 RR Spring hope Yekaterinburg
4 852 2017-06-11 5/28 0% 2.10 RR Tyumen Mahjong Tournament (TMT) 2017 Tyumen
5 581 2017-04-16 14/32 0% 2.20 RR Second riichi mahjong tournament, Chelyabinsk 2017 Chelyabinsk
6 783 2017-01-29 6/24 0% 2.20 RR The first tournament of 2017 Yekaterinburg
7 957 2015-12-05 🥈 2/24 0% 1.80 RR 4 riichi mahjong tournament 2015 Yekaterinburg
8 158 2015-09-27 17/20 0% 1.70 RR Plitochka Tyumen
9 400 2015-08-29 10/16 0% 1.60 RR 3 riichi mahjong tournament 2015 Yekaterinburg
10 1000 2015-02-22 🥇 1/28 0% 1.90 RR 2 winter riichi mahjong tournament 2015 Yekaterinburg
11 526 2014-10-25 10/20 0% 1.30 RR Autumn riichi mahjong tournament 2014 Yekaterinburg
12 842 2014-06-08 4/20 0% 1.30 RR Chelyabinsk riichi mahjong championship 2017 Chelyabinsk