Chukhnin Sergei

From Ufa, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 28, 2026 (latest changes Sept. 26, 2026).

317 place (139.98).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (133.33 * 1.20 * 0.29 + 157.89 * 1.90 * 0.43 + 478.26 * 1.60 * 1 + 105.26 * 1.50 * 1 + 0) / (1.20 * 0.29 + 1.90 * 0.43 + 1.60 * 1 + 1.50 * 1 + 1) = 208.7430904020787

p2 = (478.26 * 1.60 * 1 + 105.26 * 1.50 * 1 + 157.89 * 1.90 * 0.43 + 133.33 * 1.20 * 0.29) / max_coefficients = 71.21349772874757

score = 208.7430904020787 * 0.5 + 71.21349772874757 * 0.5 = 139.97829406541314

Rating changes

Show

all results
Date Place Points Reason
2026-09-26 316 -> 317 139.98
2026-09-23 316 140.12 -> 139.98

Martenho's Spring tournament: 57% -> 43%
2026-09-15 318 -> 316 140.12
2026-09-06 310 -> 318 140.12
2026-09-04 311 -> 310 140.12
2026-09-02 312 -> 311 140.12
2026-09-01 318 -> 312 140.12
2026-08-31 318 140.00 -> 140.12
2026-08-30 316 -> 318 140.00
2026-08-29 317 -> 316 139.64 -> 140.00

Martenho's New Year's Eve tournament: 43% -> 29%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 105 2026-05-11 18/20 100% 1.50 CRR Martenho's May Games 2026 Ufa
2 478 2026-03-07 13/24 100% 1.60 CRR Spring Martenho get-together 2026 Ufa
3 158 2025-03-23 17/20 43% 1.90 CRR Martenho's Spring tournament Ufa
4 133 2024-12-29 14/16 29% 1.20 CRR Martenho's New Year's Eve tournament Ufa