Ivanov Anton

From Ufa, Russia

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Common russian riichi rating (CRR)

Rating date Jan. 31, 2026 (latest changes Jan. 30, 2026).

188 place (265.57).

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

p1 = (851.06 * 2.80 * 0.43 + 333.33 * 1.20 * 0.86 + 576.92 * 1.40 * 1 + 0 + 0) / (2.80 * 0.43 + 1.20 * 0.86 + 1.40 * 1 + 1 + 1) = 385.8632697295953

p2 = (851.06 * 2.80 * 0.43 + 576.92 * 1.40 * 1 + 333.33 * 1.20 * 0.86) / max_coefficients = 145.27558528428096

score = 385.8632697295953 * 0.5 + 145.27558528428096 * 0.5 = 265.56942750693815

Rating changes

Show

all results
Date Place Points Reason
2026-01-26 189 -> 188 265.57
2026-01-25 187 -> 189 265.57
2026-01-14 174 -> 187 292.38 -> 265.57

Guardian of the Winds: 57% -> 43%
2026-01-12 175 -> 174 292.38
2026-01-07 174 -> 175 292.38
2026-01-03 173 -> 174 292.38
2025-12-29 174 -> 173 293.14 -> 292.38

Martenho's New Year's Eve tournament: 100% -> 86%
2025-12-27 209 -> 174 210.78 -> 293.14

Martenho's New Year 2025: 0% -> 100%
2025-12-25 210 -> 209 210.78
2025-12-13 211 -> 210 210.78

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 577 2025-12-27 12/27 100% 1.40 CRR Martenho's New Year 2025 Ufa
2 333 2024-12-29 11/16 86% 1.20 CRR Martenho's New Year's Eve tournament Ufa
3 851 2024-07-14 8/48 43% 2.80 RR Guardian of the Winds Yekaterinburg