Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date May 31, 2025 (latest changes May 30, 2025).

173 place (275.72).

max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266

p1 = (678.16 * 3.75 * 0.14 + 368.42 * 2.10 * 0.29 + 252.34 * 4 * 0.29 + 592.59 * 2.30 * 0.43 + 629.63 * 2.30 * 0.71 + 333.33 * 1.60 * 0.86 + 212.77 * 2.80 * 1 + 202.53 * 3.65 * 1 + 354.84 * 2.40 * 1) / (3.75 * 0.14 + 2.10 * 0.29 + 4 * 0.29 + 2.30 * 0.43 + 2.30 * 0.71 + 1.60 * 0.86 + 2.80 * 1 + 3.65 * 1 + 2.40 * 1) = 339.42893214376005

p2 = (629.63 * 2.30 * 0.71 + 354.84 * 2.40 * 1 + 202.53 * 3.65 * 1 + 212.77 * 2.80 * 1) / max_coefficients = 212.01027338201473

score = 339.42893214376005 * 0.5 + 212.01027338201473 * 0.5 = 275.7196027628874

Rating changes

Show

all results
Date Place Points Reason
2025-05-30 175 -> 173 275.72
2025-05-17 172 -> 175 275.72
2025-05-12 173 -> 172 271.32 -> 275.72

X Russian Championship: 100% -> 86%
2025-05-05 168 -> 173 279.70 -> 271.32

Akademgorodok: Riichi Mahjong Tournament 2024: 100% -> 86%

Finding Dora: 57% -> 43%
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%

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 86% 4.60 RR X Russian Championship Perm
5 333 2024-05-05 11/16 86% 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 43% 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