Ivanov Grigorii

From Korolyov, Russia

Player page

Internal rating (RR)

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

138 place (307.62).

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

p1 = (561.40 * 3.90 * 1 + 578.95 * 2.25 * 1 + 0 + 0 + 0) / (3.90 * 1 + 2.25 * 1 + 1 + 1 + 1) = 381.6502732240437

p2 = (561.40 * 3.90 * 1 + 578.95 * 2.25 * 1) / max_coefficients = 233.58528428093646

score = 381.6502732240437 * 0.5 + 233.58528428093646 * 0.5 = 307.6177787524901

Rating changes

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all results
Date Place Points Reason
2025-12-07 138 307.62

Winter Hatiko: 0% -> 100%

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