Vakhonin Stepan

From Saint Petersburg, Russia

EMA: 15990444

Player page

Common russian riichi rating (CRR)

Rating date March 1, 2026 (latest changes March 1, 2026).

23 place (674.59).

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

p1 = (978.26 * 2.10 * 0.14 + 94.74 * 3.85 * 0.43 + 830.51 * 3.25 * 0.86 + 888.89 * 2 * 1 + 610.39 * 3.45 * 1 + 932.43 * 3.40 * 1) / (2.10 * 0.14 + 3.85 * 0.43 + 3.25 * 0.86 + 2 * 1 + 3.45 * 1 + 3.40 * 1) = 722.610966249625

p2 = (932.43 * 3.40 * 1 + 830.51 * 3.25 * 0.86 + 610.39 * 3.45 * 1 + 888.89 * 2 * 1) / max_coefficients = 626.5772575250836

score = 722.610966249625 * 0.5 + 626.5772575250836 * 0.5 = 674.5941118873543

Rating changes

Show

all results
Date Place Points Reason
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%
2026-02-16 55 -> 64 546.26 -> 529.08

White Wolf Cup: 100% -> 86%
2026-02-13 57 -> 55 546.26
2026-02-09 58 -> 57 546.26
2026-02-02 57 -> 58 546.26
2026-01-30 53 -> 57 560.58 -> 546.26

Seihoku spring tournament 2024: 29% -> 14%
2026-01-25 51 -> 53 560.58
2026-01-19 50 -> 51 560.58
2026-01-12 52 -> 50 560.58

Tournaments

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