Grishin Aleksei

From Penza, Russia

Player page

Internal rating (RR)

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

178 place (189.59).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (417.72 * 3.65 * 0.71 + 333.33 * 2.60 * 1 + 114.29 * 3.50 * 1 + 0 + 0) / (3.65 * 0.71 + 2.60 * 1 + 3.50 * 1 + 1 + 1) = 220.01560632826803

p2 = (417.72 * 3.65 * 0.71 + 333.33 * 2.60 * 1 + 114.29 * 3.50 * 1) / max_coefficients = 159.1722972972973

score = 220.01560632826803 * 0.5 + 159.1722972972973 * 0.5 = 189.59395181278268

Rating changes

Show

all results
Date Place Points Reason
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
2025-09-03 179 -> 174 201.54
2025-09-01 178 -> 179 199.25 -> 201.54
2025-08-31 175 -> 178 199.25
2025-08-04 175 209.70 -> 199.25

Riichi over Volga: 100% -> 86%
2025-08-03 169 -> 175 209.70
2025-07-13 166 -> 169 209.70
2025-07-12 167 -> 166 208.00 -> 209.70

Tournaments

# Base rank Date Place Power Coefficient Type 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 71% 3.65 RR Riichi over Volga Samara
4 870 2019-03-09 4/24 0% 2.50 RR Toi-Toi-man Tournament Kirov