Vakhonin Stepan

From Saint Petersburg, Russia

EMA: 15990444

Player page

Common russian riichi rating (CRR)

Rating date May 13, 2026 (latest changes May 12, 2026).

20 place (686.40).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (94.74 * 3.85 * 0.29 + 830.51 * 3.25 * 0.71 + 888.89 * 2 * 1 + 610.39 * 3.45 * 1 + 932.43 * 3.40 * 1 + 966.67 * 1.70 * 1) / (3.85 * 0.29 + 3.25 * 0.71 + 2 * 1 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1) = 767.9555836128325

p2 = (932.43 * 3.40 * 1 + 610.39 * 3.45 * 1 + 830.51 * 3.25 * 0.71 + 888.89 * 2 * 1) / max_coefficients = 604.8410774410776

score = 767.9555836128325 * 0.5 + 604.8410774410776 * 0.5 = 686.3983305269551

Rating changes

Show

all results
Date Place Points Reason
2026-05-03 20 684.38 -> 686.40
2026-05-01 24 -> 20 671.62 -> 684.38

SPB Riichi Open 2024: 43% -> 29%
2026-04-16 22 -> 24 685.88 -> 671.62

White Wolf Cup: 86% -> 71%
2026-04-11 24 -> 22 671.71 -> 685.88

Seihoku spring tournament 2026: 0% -> 100%
2026-04-05 22 -> 24 671.71
2026-04-02 24 -> 22 671.71
2026-03-30 24 674.59 -> 671.71

Seihoku spring tournament 2024: 14% -> 0%
2026-03-10 23 -> 24 674.59
2026-03-01 29 -> 23 662.38 -> 674.59

SPB Riichi Open 2024: 57% -> 43%
2026-02-23 64 -> 29 529.08 -> 662.38

White Wolf Cup 2026: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 967 2026-04-11 🥈 2/31 100% 1.70 RR Seihoku spring tournament 2026 Saint Petersburg
2 932 2026-02-23 6/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
3 610 2025-08-31 31/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
4 889 2025-06-14 🥉 3/19 100% 2.00 CRR Tonpu-master Saint Petersburg
5 831 2025-02-16 11/60 71% 3.25 RR White Wolf Cup Saint Petersburg
6 95 2024-09-01 87/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 978 2024-03-30 🥈 2/47 0% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
8 953 2023-09-03 6/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 696 2023-04-22 8/24 0% 1.40 CRR Fire cup 2023 Saint Petersburg
10 774 2023-02-25 8/32 0% 1.80 CRR Earth cup Saint Petersburg
11 795 2022-08-27 9/40 0% 1.80 CRR Sun tournament Saint Petersburg
12 198 2022-06-12 90/112 0% 4.05 RR Moscow Riichi 2022 Moscow
13 173 2021-11-28 63/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
14 222 2019-11-24 50/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
15 0 2019-06-02 40/40 0% 2.90 RR Summer Cup 2019 Saint Petersburg