Chukhnin Sergei

From Ufa, Russia

Player page

Common russian riichi rating (CRR)

Rating date Aug. 16, 2026 (latest changes Aug. 16, 2026).

312 place (139.64).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 15.459999999999999

p1 = (133.33 * 1.20 * 0.43 + 157.89 * 1.90 * 0.57 + 478.26 * 1.60 * 1 + 105.26 * 1.50 * 1 + 0) / (1.20 * 0.43 + 1.90 * 0.57 + 1.60 * 1 + 1.50 * 1 + 1) = 204.05510194772614

p2 = (478.26 * 1.60 * 1 + 157.89 * 1.90 * 0.57 + 105.26 * 1.50 * 1 + 133.33 * 1.20 * 0.43) / max_coefficients = 75.23350582147476

score = 204.05510194772614 * 0.5 + 75.23350582147476 * 0.5 = 139.64430388460045

Rating changes

Show

all results
Date Place Points Reason
2026-08-15 312 139.37 -> 139.64
2026-08-13 314 -> 312 139.37
2026-08-04 319 -> 314 139.37
2026-08-02 310 -> 319 139.37
2026-07-25 308 -> 310 139.37
2026-07-23 308 139.70 -> 139.37

Martenho's Spring tournament: 71% -> 57%
2026-07-18 307 -> 308 139.70
2026-07-14 308 -> 307 139.70
2026-07-12 304 -> 308 139.70
2026-07-11 302 -> 304 139.70

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 57% 1.90 CRR Martenho's Spring tournament Ufa
4 133 2024-12-29 14/16 43% 1.20 CRR Martenho's New Year's Eve tournament Ufa