Petsilyak Igor

From Moscow, Russia

EMA: 15990408

Player page

Internal rating (RR)

Rating date Nov. 22, 2025 (latest changes Nov. 14, 2025).

75 place (465.26).

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

p1 = (738.32 * 4.60 * 0.43 + 0 * 3.05 * 0.57 + 177.22 * 3.65 * 0.71 + 910.11 * 3.75 * 0.86 + 258.06 * 3.10 * 1 + 254.90 * 3.05 * 1 + 466.67 * 2.45 * 1 + 181.82 * 3.45 * 1 + 578.95 * 3.90 * 1) / (4.60 * 0.43 + 3.05 * 0.57 + 3.65 * 0.71 + 3.75 * 0.86 + 3.10 * 1 + 3.05 * 1 + 2.45 * 1 + 3.45 * 1 + 3.90 * 1) = 409.98836600204436

p2 = (910.11 * 3.75 * 0.86 + 578.95 * 3.90 * 1 + 738.32 * 4.60 * 0.43 + 466.67 * 2.45 * 1) / max_coefficients = 520.5397993311037

score = 409.98836600204436 * 0.5 + 520.5397993311037 * 0.5 = 465.26408266657404

Rating changes

Show

all results
Date Place Points Reason
2025-11-14 74 -> 75 465.26
2025-11-12 71 -> 74 485.61 -> 465.26

X Russian Championship: 57% -> 43%
2025-11-10 72 -> 71 485.61
2025-11-04 98 -> 72 413.97 -> 485.61

XI Russian Championship: 0% -> 100%
2025-11-01 100 -> 98 409.81 -> 413.97

SPB Riichi Open 2024: 86% -> 71%
2025-10-13 96 -> 100 424.87 -> 409.81

Moscow Riichi 2024: 100% -> 86%
2025-10-09 96 421.94 -> 424.87

Agari Summer Tournament 2024: 71% -> 57%
2025-10-04 97 -> 96 420.27 -> 421.94

Riichi over Volga: 86% -> 71%
2025-09-12 95 -> 97 441.30 -> 420.27

X Russian Championship: 71% -> 57%
2025-09-03 90 -> 95 459.19 -> 441.30

SPB Riichi Open 2023: 14% -> 0%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 579 2025-11-04 25/58 100% 3.90 RR XI Russian Championship Moscow
2 182 2025-08-31 64/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
3 467 2025-07-13 17/31 100% 2.45 RR Agari Summer Tournament 2025 Moscow
4 255 2025-02-02 39/52 100% 3.05 RR Agari Winter Tournament 2025 Moscow
5 258 2025-01-07 24/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
6 910 2024-10-13 9/90 86% 3.75 RR Moscow Riichi 2024 Moscow
7 42 2024-09-01 92/96 71% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
8 177 2024-08-04 66/80 71% 3.65 RR Riichi over Volga Samara
9 0 2024-06-09 52/52 57% 3.05 RR Agari Summer Tournament 2024 Moscow
10 738 2024-05-12 29/108 43% 4.60 RR X Russian Championship Perm
11 103 2023-09-03 97/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
12 493 2022-11-06 39/76 0% 4.20 RR IX Russian Riichi Championship Perm
13 189 2022-06-12 91/112 0% 4.05 RR Moscow Riichi 2022 Moscow
14 733 2021-11-28 21/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg