Vakhonin Stepan

From Saint Petersburg, Russia

EMA: 15990444

Player page

Common russian riichi rating (CRR)

Rating date July 16, 2026 (latest changes July 15, 2026).

29 place (667.73).

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

p1 = (94.74 * 3.85 * 0.14 + 830.51 * 3.25 * 0.57 + 888.89 * 2 * 0.86 + 610.39 * 3.45 * 1 + 932.43 * 3.40 * 1 + 966.67 * 1.70 * 1) / (3.85 * 0.14 + 3.25 * 0.57 + 2 * 0.86 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1) = 792.1443658817899

p2 = (932.43 * 3.40 * 1 + 610.39 * 3.45 * 1 + 966.67 * 1.70 * 1 + 830.51 * 3.25 * 0.57) / max_coefficients = 543.3209345509953

score = 792.1443658817899 * 0.5 + 543.3209345509953 * 0.5 = 667.7326502163926

Rating changes

Show

all results
Date Place Points Reason
2026-07-12 28 -> 29 667.73
2026-07-07 27 -> 28 667.73
2026-07-03 28 -> 27 667.73
2026-07-01 32 -> 28 653.23 -> 667.73

SPB Riichi Open 2024: 29% -> 14%
2026-06-16 28 -> 32 666.76 -> 653.23

White Wolf Cup: 71% -> 57%
2026-06-15 28 656.46 -> 666.76
2026-06-14 17 -> 28 686.40 -> 656.46

Tonpu-master: 100% -> 86%
2026-06-13 18 -> 17 686.40
2026-06-09 19 -> 18 686.40
2026-05-17 20 -> 19 686.40

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 86% 2.00 CRR Tonpu-master Saint Petersburg
5 831 2025-02-16 11/60 57% 3.25 RR White Wolf Cup Saint Petersburg
6 95 2024-09-01 87/96 14% 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