Vakhonin Stepan

From Saint Petersburg, Russia

EMA: 15990444

Player page

Internal rating (RR)

Rating date June 11, 2025 (latest changes June 11, 2025).

85 place (446.58).

max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266

p1 = (953.27 * 4 * 0.29 + 978.26 * 2.10 * 0.71 + 94.74 * 3.85 * 1 + 830.51 * 3.25 * 1 + 0) / (4 * 0.29 + 2.10 * 0.71 + 3.85 * 1 + 3.25 * 1 + 1) = 523.2057102271935

p2 = (830.51 * 3.25 * 1 + 978.26 * 2.10 * 0.71 + 953.27 * 4 * 0.29 + 94.74 * 3.85 * 1) / max_coefficients = 369.9622054334132

score = 523.2057102271935 * 0.5 + 369.9622054334132 * 0.5 = 446.58395783030335

Rating changes

Show

all results
Date Place Points Reason
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%
2025-03-10 66 -> 63 496.39
2025-03-03 59 -> 66 522.41 -> 496.39

SPB Riichi Open 2023: 57% -> 43%
2025-03-02 57 -> 59 522.41

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 29% 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