Petsilyak Igor

From Moscow, Russia

EMA: 15990408

Player page

Internal rating (RR)

Rating date April 20, 2026 (latest changes April 19, 2026).

87 place (439.01).

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

p1 = (738.32 * 4.60 * 0.14 + 0 * 3.05 * 0.14 + 177.22 * 3.65 * 0.29 + 42.11 * 3.85 * 0.43 + 910.11 * 3.75 * 0.43 + 258.06 * 3.10 * 0.71 + 254.90 * 3.05 * 0.71 + 466.67 * 2.45 * 1 + 181.82 * 3.45 * 1 + 578.95 * 3.90 * 1 + 466.67 * 3 * 1 + 554.05 * 3.40 * 1) / (4.60 * 0.14 + 3.05 * 0.14 + 3.65 * 0.29 + 3.85 * 0.43 + 3.75 * 0.43 + 3.10 * 0.71 + 3.05 * 0.71 + 2.45 * 1 + 3.45 * 1 + 3.90 * 1 + 3 * 1 + 3.40 * 1) = 409.50162383671864

p2 = (578.95 * 3.90 * 1 + 554.05 * 3.40 * 1 + 910.11 * 3.75 * 0.43 + 466.67 * 3 * 1) / max_coefficients = 468.52508361204013

score = 409.50162383671864 * 0.5 + 468.52508361204013 * 0.5 = 439.0133537243794

Rating changes

Show

all results
Date Place Points Reason
2026-04-13 84 -> 87 460.37 -> 439.01

Moscow Riichi 2024: 57% -> 43%
2026-04-11 83 -> 84 460.37
2026-04-09 83 456.98 -> 460.37

Agari Summer Tournament 2024: 29% -> 14%
2026-04-05 77 -> 83 473.93 -> 456.98

Moscow Riichi 2026: 0% -> 100%
2026-04-04 80 -> 77 471.00 -> 473.93

Riichi over Volga: 43% -> 29%
2026-04-02 82 -> 80 469.35 -> 471.00

Agari Winter Tournament 2025: 86% -> 71%
2026-03-14 84 -> 82 469.35
2026-03-12 82 -> 84 473.28 -> 469.35

X Russian Championship: 29% -> 14%
2026-03-07 82 471.66 -> 473.28

Moscow Open Riichi Marathon: 86% -> 71%
2026-03-02 83 -> 82 471.66

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 80 2026-04-05 47/51 100% 3.10 RR Moscow Riichi 2026 Moscow
2 554 2026-02-23 34/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
3 467 2026-01-07 17/31 100% 3.00 RR Moscow Open Riichi Marathon 2026 Moscow
4 579 2025-11-04 25/58 100% 3.90 RR XI Russian Championship Moscow
5 182 2025-08-31 64/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
6 467 2025-07-13 17/31 100% 2.45 RR Agari Summer Tournament 2025 Moscow
7 255 2025-02-02 39/52 71% 3.05 RR Agari Winter Tournament 2025 Moscow
8 258 2025-01-07 24/32 71% 3.10 RR Moscow Open Riichi Marathon Moscow
9 910 2024-10-13 9/90 43% 3.75 RR Moscow Riichi 2024 Moscow
10 42 2024-09-01 92/96 43% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
11 177 2024-08-04 66/80 29% 3.65 RR Riichi over Volga Samara
12 0 2024-06-09 52/52 14% 3.05 RR Agari Summer Tournament 2024 Moscow
13 738 2024-05-12 29/108 14% 4.60 RR X Russian Championship Perm
14 103 2023-09-03 97/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
15 493 2022-11-06 39/76 0% 4.20 RR IX Russian Riichi Championship Perm
16 189 2022-06-12 91/112 0% 4.05 RR Moscow Riichi 2022 Moscow
17 733 2021-11-28 21/76 0% 3.45 RR Saint Petersburg Open 2021 Saint Petersburg