Ivanov Grigorii

From Korolyov, Russia

Player page

Common russian riichi rating (CRR)

Rating date May 24, 2026 (latest changes May 23, 2026).

130 place (380.69).

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 + 333.33 * 2.45 * 1 + 0) / (1.50 * 0.86 + 3.90 * 1 + 2.25 * 1 + 2.45 * 1 + 1) = 439.3334343837988

p2 = (561.40 * 3.90 * 1 + 578.95 * 2.25 * 1 + 333.33 * 2.45 * 1 + 368.42 * 1.50 * 0.86) / max_coefficients = 322.0491582491582

score = 439.3334343837988 * 0.5 + 322.0491582491582 * 0.5 = 380.69129631647854

Rating changes

Show

all results
Date Place Points Reason
2026-05-17 149 -> 130 345.76 -> 380.69

HaTiKo: 100% -> 86%

Hatiko under the sakura: 0% -> 100%
2026-05-15 150 -> 149 345.76
2026-05-12 154 -> 150 345.76
2026-05-11 152 -> 154 345.76
2026-05-05 153 -> 152 345.76
2026-05-04 152 -> 153 345.76
2026-05-03 151 -> 152 344.85 -> 345.76
2026-05-02 153 -> 151 344.85
2026-05-01 155 -> 153 344.85
2026-04-19 148 -> 155 344.85

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 333 2026-05-17 19/28 100% 2.45 RR Hatiko under the sakura Korolyov
2 579 2025-12-07 9/20 100% 2.25 RR Winter Hatiko Korolyov
3 561 2025-11-04 26/58 100% 3.90 RR XI Russian Championship Moscow
4 368 2025-05-17 13/20 86% 1.50 CRR HaTiKo Korolyov