Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date May 3, 2025 (latest changes May 3, 2025).

168 place (279.70).

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

p1 = (368.42 * 2.10 * 0.29 + 678.16 * 3.75 * 0.14 + 252.34 * 4 * 0.29 + 592.59 * 2.30 * 0.57 + 629.63 * 2.30 * 0.71 + 333.33 * 1.60 * 1 + 212.77 * 2.80 * 1 + 202.53 * 3.65 * 1 + 354.84 * 2.40 * 1) / (2.10 * 0.29 + 3.75 * 0.14 + 4 * 0.29 + 2.30 * 0.57 + 2.30 * 0.71 + 1.60 * 1 + 2.80 * 1 + 3.65 * 1 + 2.40 * 1) = 344.640726570063

p2 = (629.63 * 2.30 * 0.71 + 354.84 * 2.40 * 1 + 592.59 * 2.30 * 0.57 + 202.53 * 3.65 * 1) / max_coefficients = 214.76719242902206

score = 344.640726570063 * 0.5 + 214.76719242902206 * 0.5 = 279.7039594995425

Rating changes

Show

all results
Date Place Points Reason
2025-05-03 166 -> 168 278.08 -> 279.70

SPB Riichi Open 2023: 43% -> 29%
2025-04-27 163 -> 166 278.33 -> 278.08

13 tiles until tempai: 43% -> 29%
2025-04-26 161 -> 163 278.33
2025-04-25 154 -> 161 287.65 -> 278.33

Chasing Kan: 86% -> 71%
2025-04-13 152 -> 154 287.65
2025-04-11 148 -> 152 292.73 -> 287.65

Money can not buy tenpai: 29% -> 14%
2025-03-30 149 -> 148 292.73
2025-03-29 148 -> 149 292.73
2025-03-23 146 -> 148 292.73
2025-03-05 143 -> 146 301.05 -> 292.73

Finding Dora: 71% -> 57%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 355 2025-03-02 21/32 100% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
2 203 2024-08-04 64/80 100% 3.65 RR Riichi over Volga Samara
3 213 2024-07-14 38/48 100% 2.80 RR Guardian of the Winds Yekaterinburg
4 103 2024-05-12 97/108 100% 4.60 RR X Russian Championship Perm
5 333 2024-05-05 11/16 100% 1.60 CRR Akademgorodok: Riichi Mahjong Tournament 2024 Novosibirsk
6 630 2024-02-25 11/28 71% 2.30 CRR Chasing Kan Yekaterinburg
7 593 2023-11-05 12/28 57% 2.30 CRR Finding Dora Yekaterinburg
8 252 2023-09-03 81/108 29% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 368 2023-08-27 13/20 29% 2.10 CRR 13 tiles until tempai Yekaterinburg
10 678 2023-06-11 29/88 14% 3.75 RR Money can not buy tenpai Perm