Vakhonin Stepan

From Saint Petersburg, Russia

EMA: 15990444

Player page

Internal rating (RR)

Rating date July 10, 2025 (latest changes July 10, 2025).

96 place (411.78).

max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266

p1 = (830.51 * 3.25 * 1 + 953.27 * 4 * 0.14 + 978.26 * 2.10 * 0.71 + 94.74 * 3.85 * 1 + 0) / (3.25 * 1 + 4 * 0.14 + 2.10 * 0.71 + 3.85 * 1 + 1) = 499.0547237758353

p2 = (830.51 * 3.25 * 1 + 978.26 * 2.10 * 0.71 + 953.27 * 4 * 0.14 + 94.74 * 3.85 * 1) / max_coefficients = 324.5100257884529

score = 499.0547237758353 * 0.5 + 324.5100257884529 * 0.5 = 411.7823747821441

Rating changes

Show

all results
Date Place Points Reason
2025-07-10 97 -> 96 411.78
2025-07-03 91 -> 97 441.26 -> 411.78

SPB Riichi Open 2023: 29% -> 14%
2025-06-15 85 -> 91 446.58 -> 441.26
2025-06-11 87 -> 85 446.58
2025-06-08 86 -> 87 446.58
2025-05-30 83 -> 86 462.42 -> 446.58

Seihoku spring tournament 2024: 86% -> 71%
2025-05-12 84 -> 83 454.35 -> 462.42
2025-05-03 66 -> 84 481.81 -> 454.35

SPB Riichi Open 2023: 43% -> 29%
2025-04-11 68 -> 66 481.81
2025-03-30 63 -> 68 496.39 -> 481.81

Seihoku spring tournament 2024: 100% -> 86%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 831 2025-02-16 11/60 100% 3.25 RR White Wolf Cup Saint Petersburg
2 95 2024-09-01 87/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
3 978 2024-03-30 2/47 71% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
4 953 2023-09-03 6/108 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
5 198 2022-06-12 90/112 0% 4.05 RR Moscow Riichi 2022 Moscow
6 173 2021-11-28 63/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg
7 222 2019-11-24 50/64 0% 3.45 EMA Saint Petersburg Open 2019 Saint Petersburg
8 0 2019-06-02 40/40 0% 2.90 RR Summer Cup 2019 Saint Petersburg