Grishin Aleksei

From Penza, Russia

Player page

Internal rating (RR)

Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).

191 place (176.45).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (417.72 * 3.65 * 0.57 + 333.33 * 2.60 * 1 + 114.29 * 3.50 * 1 + 0 + 0) / (3.65 * 0.57 + 2.60 * 1 + 3.50 * 1 + 1 + 1) = 209.89120926483537

p2 = (417.72 * 3.65 * 0.57 + 333.33 * 2.60 * 1 + 114.29 * 3.50 * 1) / max_coefficients = 143.00133779264215

score = 209.89120926483537 * 0.5 + 143.00133779264215 * 0.5 = 176.44627352873874

Rating changes

Show

all results
Date Place Points Reason
2025-12-07 187 -> 191 176.45
2025-12-04 184 -> 187 188.80 -> 176.45

Riichi over Volga: 71% -> 57%
2025-11-30 185 -> 184 188.80
2025-11-12 187 -> 185 188.80
2025-11-04 178 -> 187 192.38 -> 188.80
2025-11-01 178 192.09 -> 192.38
2025-10-13 178 189.59 -> 192.09
2025-10-04 170 -> 178 201.54 -> 189.59

Riichi over Volga: 86% -> 71%
2025-09-30 173 -> 170 201.54
2025-09-12 174 -> 173 201.54

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 114 2025-05-03 63/71 100% 3.50 RR Riichi over The Volga 2025 Samara
2 333 2025-01-26 29/43 100% 2.60 RR Riichi On Ice Samara
3 418 2024-08-04 47/80 57% 3.65 RR Riichi over Volga Samara
4 870 2019-03-09 4/24 0% 2.50 RR Toi-Toi-man Tournament Kirov