Chukhnin Sergei

From Ufa, Russia

Player page

Common russian riichi rating (CRR)

Rating date Feb. 8, 2026 (latest changes Feb. 4, 2026).

253 place (146.04).

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

p1 = (133.33 * 1.20 * 0.86 + 157.89 * 1.90 * 1 + 615.38 * 1.40 * 1 + 0 + 0) / (1.20 * 0.86 + 1.90 * 1 + 1.40 * 1 + 1 + 1) = 205.21069697180383

p2 = (615.38 * 1.40 * 1 + 157.89 * 1.90 * 1 + 133.33 * 1.20 * 0.86) / max_coefficients = 86.86822742474915

score = 205.21069697180383 * 0.5 + 86.86822742474915 * 0.5 = 146.03946219827648

Rating changes

Show

all results
Date Place Points Reason
2026-02-04 255 -> 253 146.04
2026-01-30 256 -> 255 146.04
2026-01-25 253 -> 256 146.04
2026-01-07 251 -> 253 146.04
2026-01-03 250 -> 251 146.04
2026-01-01 251 -> 250 146.04
2025-12-29 251 145.86 -> 146.04

Martenho's New Year's Eve tournament: 100% -> 86%
2025-12-27 284 -> 251 53.09 -> 145.86

Martenho's New Year 2025: 0% -> 100%
2025-12-25 285 -> 284 53.09
2025-12-09 286 -> 285 53.09

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 615 2025-12-27 11/27 100% 1.40 CRR Martenho's New Year 2025 Ufa
2 158 2025-03-23 17/20 100% 1.90 CRR Martenho's Spring tournament Ufa
3 133 2024-12-29 14/16 86% 1.20 CRR Martenho's New Year's Eve tournament Ufa