Vakhonin Stepan

From Saint Petersburg, Russia

EMA: 15990444

Player page

Common russian riichi rating (CRR)

Rating date Sept. 19, 2026 (latest changes Sept. 17, 2026).

45 place (618.58).

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

p1 = (830.51 * 3.25 * 0.43 + 888.89 * 2 * 0.71 + 610.39 * 3.45 * 0.86 + 932.43 * 3.40 * 1 + 966.67 * 1.70 * 1 + 612.90 * 1.80 * 1 + 408.45 * 3.40 * 1) / (3.25 * 0.43 + 2 * 0.71 + 3.45 * 0.86 + 3.40 * 1 + 1.70 * 1 + 1.80 * 1 + 3.40 * 1) = 717.5531119264834

p2 = (932.43 * 3.40 * 1 + 610.39 * 3.45 * 0.86 + 966.67 * 1.70 * 1 + 408.45 * 3.40 * 1) / max_coefficients = 519.6138870863076

score = 717.5531119264834 * 0.5 + 519.6138870863076 * 0.5 = 618.5834995063956

Rating changes

Show

all results
Date Place Points Reason
2026-09-07 46 -> 45 618.58
2026-09-06 34 -> 46 656.17 -> 618.58

Sunset Wolf Cup 2026: 0% -> 100%
2026-09-01 38 -> 34 641.50 -> 656.17

SPB Riichi Open 2024: 14% -> 0%
2026-08-31 40 -> 38 647.52 -> 641.50

SPB Riichi Open 2025: 100% -> 86%
2026-08-16 30 -> 40 657.39 -> 647.52

White Wolf Cup: 57% -> 43%
2026-08-15 31 -> 30 655.39 -> 657.39
2026-08-14 31 656.59 -> 655.39

Tonpu-master: 86% -> 71%
2026-08-02 32 -> 31 656.59
2026-07-26 31 -> 32 656.59
2026-07-25 29 -> 31 667.73 -> 656.59

Seihoku Summer Tournament 2026: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 408 2026-09-06 43/72 100% 3.40 RR Sunset Wolf Cup 2026 Saint Petersburg
2 613 2026-07-25 13/32 100% 1.80 RR Seihoku Summer Tournament 2026 Saint Petersburg
3 967 2026-04-11 🥈 2/31 100% 1.70 RR Seihoku spring tournament 2026 Saint Petersburg
4 932 2026-02-23 6/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
5 610 2025-08-31 31/78 86% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
6 889 2025-06-14 🥉 3/19 71% 2.00 CRR Tonpu-master Saint Petersburg
7 831 2025-02-16 11/60 43% 3.25 RR White Wolf Cup Saint Petersburg
8 95 2024-09-01 87/96 0% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
9 978 2024-03-30 🥈 2/47 0% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
10 953 2023-09-03 6/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
11 696 2023-04-22 8/24 0% 1.40 CRR Fire cup 2023 Saint Petersburg
12 774 2023-02-25 8/32 0% 1.80 CRR Earth cup Saint Petersburg
13 795 2022-08-27 9/40 0% 1.80 CRR Sun tournament Saint Petersburg
14 198 2022-06-12 90/112 0% 4.05 RR Moscow Riichi 2022 Moscow
15 173 2021-11-28 63/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
16 222 2019-11-24 50/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
17 0 2019-06-02 40/40 0% 2.90 RR Summer Cup 2019 Saint Petersburg