Ivanov Grigorii

From Korolyov, Russia

Player page

Common russian riichi rating (CRR)

Rating date May 17, 2026 (latest changes May 17, 2026).

153 place (343.67).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (368.42 * 1.50 * 0.86 + 561.40 * 3.90 * 1 + 578.95 * 2.25 * 1 + 0 + 0) / (1.50 * 0.86 + 3.90 * 1 + 2.25 * 1 + 1 + 1) = 420.29536915845756

p2 = (561.40 * 3.90 * 1 + 578.95 * 2.25 * 1 + 368.42 * 1.50 * 0.86) / max_coefficients = 267.05454545454546

score = 420.29536915845756 * 0.5 + 267.05454545454546 * 0.5 = 343.6749573065015

Rating changes

Show

all results
Date Place Points Reason
2026-05-17 150 -> 153 345.76 -> 343.67

HaTiKo: 100% -> 86%
2026-05-15 151 -> 150 345.76
2026-05-12 155 -> 151 345.76
2026-05-11 153 -> 155 345.76
2026-05-05 154 -> 153 345.76
2026-05-04 153 -> 154 345.76
2026-05-03 152 -> 153 344.85 -> 345.76
2026-05-02 154 -> 152 344.85
2026-05-01 156 -> 154 344.85
2026-04-19 149 -> 156 344.85

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 579 2025-12-07 9/20 100% 2.25 RR Winter Hatiko Korolyov
2 561 2025-11-04 26/58 100% 3.90 RR XI Russian Championship Moscow
3 368 2025-05-17 13/20 86% 1.50 CRR HaTiKo Korolyov