Chukhnin Sergei

From Ufa, Russia

Player page

Common russian riichi rating (CRR)

Rating date July 5, 2026 (latest changes July 4, 2026).

302 place (139.70).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (133.33 * 1.20 * 0.43 + 157.89 * 1.90 * 0.71 + 478.26 * 1.60 * 1 + 105.26 * 1.50 * 1 + 0) / (1.20 * 0.43 + 1.90 * 0.71 + 1.60 * 1 + 1.50 * 1 + 1) = 201.95629566490106

p2 = (478.26 * 1.60 * 1 + 157.89 * 1.90 * 0.71 + 105.26 * 1.50 * 1 + 133.33 * 1.20 * 0.43) / max_coefficients = 77.4349224450065

score = 201.95629566490106 * 0.5 + 77.4349224450065 * 0.5 = 139.6956090549538

Rating changes

Show

all results
Date Place Points Reason
2026-06-29 303 -> 302 139.47 -> 139.70

Martenho's New Year's Eve tournament: 57% -> 43%
2026-06-15 303 138.04 -> 139.47
2026-06-14 288 -> 303 141.39 -> 138.04
2026-06-09 289 -> 288 141.39
2026-06-04 290 -> 289 141.39
2026-05-31 283 -> 290 141.39
2026-05-25 286 -> 283 141.39
2026-05-23 285 -> 286 141.95 -> 141.39

Martenho's Spring tournament: 86% -> 71%
2026-05-17 284 -> 285 141.95
2026-05-14 285 -> 284 141.95

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 71% 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