Rogozin Leonid

From Perm, Russia

EMA: 15020051

Player page

Internal rating (RR)

Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).

64 place (521.79).

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

p1 = (803.74 * 4.60 * 0.43 + 974.68 * 3.65 * 0.57 + 728.81 * 3.25 * 1 + 0 + 0) / (4.60 * 0.43 + 3.65 * 0.57 + 3.25 * 1 + 1 + 1) = 643.1675794038359

p2 = (728.81 * 3.25 * 1 + 974.68 * 3.65 * 0.57 + 803.74 * 4.60 * 0.43) / max_coefficients = 400.40602006688965

score = 643.1675794038359 * 0.5 + 400.40602006688965 * 0.5 = 521.7867997353628

Rating changes

Show

all results
Date Place Points Reason
2025-12-09 63 -> 64 521.79
2025-12-07 61 -> 63 521.79
2025-12-04 54 -> 61 547.59 -> 521.79

Riichi over Volga: 71% -> 57%
2025-11-14 55 -> 54 547.59
2025-11-12 50 -> 55 569.72 -> 547.59

X Russian Championship: 57% -> 43%
2025-11-10 51 -> 50 569.72
2025-11-04 47 -> 51 580.40 -> 569.72
2025-11-01 49 -> 47 579.54 -> 580.40
2025-10-13 49 572.10 -> 579.54
2025-10-04 46 -> 49 596.49 -> 572.10

Riichi over Volga: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 729 2025-02-16 17/60 100% 3.25 RR White Wolf Cup Saint Petersburg
2 975 2024-08-04 🥉 3/80 57% 3.65 RR Riichi over Volga Samara
3 804 2024-05-12 22/108 43% 4.60 RR X Russian Championship Perm
4 943 2023-06-11 6/88 0% 3.75 RR Money can not buy tenpai Perm
5 614 2019-05-04 33/84 0% 4.20 EMA Haru Shanten 2019 Perm
6 121 2018-11-18 81/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
7 362 2018-08-19 31/48 0% 3.10 RR Moscow Riichi Open 2018 Moscow
8 630 2018-08-11 11/28 0% 1.70 RR Natsu Shanten 2018 Perm
9 957 2018-07-28 🥈 2/24 0% 1.40 RR Seven ryanmens Kirov
10 113 2018-06-11 64/72 0% 3.55 EMA RCR Saint Petersburg South Cup 2018 Saint Petersburg
11 972 2018-05-01 🥉 3/72 0% 3.85 EMA Haru Shanten 2018 Perm
12 926 2018-02-17 🥉 3/28 0% 1.70 RR Fuyu Shanten Perm
13 579 2017-12-24 9/20 0% 2.10 EMA Tyumen Riichi Open 2017 Tyumen
14 408 2017-11-12 43/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
15 87 2017-07-30 22/24 0% 2.20 RR Summer EMA rules tournament 2017 Yekaterinburg
16 1000 2017-06-03 🥇 1/32 0% 1.60 RR "Summer shanten" tournament, Perm 2017 Perm