Vinnichenko Aleksandr

From Simferopol, Russia

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Common russian riichi rating (CRR)

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

112 place (462.55).

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

p1 = (466.67 * 1.80 * 0.14 + 533.33 * 2 * 0.57 + 391.30 * 1.20 * 0.71 + 956.52 * 1.20 * 1 + 631.58 * 1.30 * 1 + 580.65 * 1.80 * 1 + 842.11 * 1.30 * 1) / (1.80 * 0.14 + 2 * 0.57 + 1.20 * 0.71 + 1.20 * 1 + 1.30 * 1 + 1.80 * 1 + 1.30 * 1) = 658.4703417765661

p2 = (956.52 * 1.20 * 1 + 842.11 * 1.30 * 1 + 580.65 * 1.80 * 1 + 631.58 * 1.30 * 1) / max_coefficients = 266.63075924724205

score = 658.4703417765661 * 0.5 + 266.63075924724205 * 0.5 = 462.5505505119041

Rating changes

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all results
Date Place Points Reason
2026-09-26 128 -> 112 425.66 -> 462.55

Pands in discards: 86% -> 71%

Autumn League Stage 1: 0% -> 100%
2026-09-13 129 -> 128 425.66
2026-09-06 125 -> 129 425.66
2026-09-02 126 -> 125 425.66
2026-09-01 128 -> 126 425.66
2026-08-31 129 -> 128 425.28 -> 425.66
2026-08-30 126 -> 129 425.28
2026-08-27 127 -> 126 425.94 -> 425.28

South Dragon Cup II: 71% -> 57%

Happy Bamboo 2024: 29% -> 14%
2026-08-16 122 -> 127 425.94
2026-08-15 121 -> 122 425.05 -> 425.94

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 842 2026-09-26 4/20 100% 1.30 CRR Autumn League Stage 1 Simferopol
2 581 2026-07-25 14/32 100% 1.80 RR Seihoku Summer Tournament 2026 Saint Petersburg
3 632 2026-03-21 8/20 100% 1.30 CRR The Southern Coon Mini Cup 2026 Simferopol
4 957 2025-12-06 🥈 2/24 100% 1.20 CRR Riichi on fire Simferopol
5 391 2025-07-26 15/24 71% 1.20 CRR Pands in discards Simferopol
6 533 2025-04-27 8/16 57% 2.00 RR South Dragon Cup II Simferopol
7 467 2024-10-27 9/16 14% 1.80 CRR Happy Bamboo 2024 Simferopol