Rogozin Leonid
From Perm, Russia
EMA: 15020051
Common russian riichi rating (CRR)
Rating date Aug. 4, 2025 (latest changes Aug. 4, 2025).
42 place (610.54).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (803.74 * 4.60 * 0.71 + 974.68 * 3.65 * 0.86 + 728.81 * 3.25 * 1 + 0 + 0) / (4.60 * 0.71 + 3.65 * 0.86 + 3.25 * 1 + 1 + 1) = 690.8972286557281
p2 = (974.68 * 3.65 * 0.86 + 803.74 * 4.60 * 0.71 + 728.81 * 3.25 * 1) / max_coefficients = 530.1815789473685
score = 690.8972286557281 * 0.5 + 530.1815789473685 * 0.5 = 610.5394038015484
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-04 | 39 -> 42 | 630.58 -> 610.54 |
Riichi over Volga: 100% -> 86% |
| 2025-08-03 | 35 -> 39 | 630.58 | |
| 2025-07-13 | 34 -> 35 | 630.58 | |
| 2025-07-12 | 33 -> 34 | 644.81 -> 630.58 |
X Russian Championship: 86% -> 71% |
| 2025-06-15 | 28 -> 33 | 653.42 -> 644.81 | |
| 2025-06-11 | 18 -> 28 | 703.72 -> 653.42 |
Money can not buy tenpai: 14% -> 0% |
| 2025-06-09 | 17 -> 18 | 703.72 | |
| 2025-05-12 | 17 | 708.00 -> 703.72 |
X Russian Championship: 100% -> 86% |
| 2025-05-03 | 13 -> 17 | 708.00 | |
| 2025-04-11 | 11 -> 13 | 727.19 -> 708.00 |
Money can not buy tenpai: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 729 |
|
17/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 2 | 975 |
|
🥉 | 3/80 | 86% | 3.65 | RR | Riichi over Volga | Samara |
| 3 | 804 |
|
22/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 943 |
|
6/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 5 | 614 |
|
33/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 6 | 121 |
|
81/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" | Perm | |
| 7 | 362 |
|
31/48 | 0% | 3.10 | RR | Moscow Riichi Open 2018 | Moscow | |
| 8 | 630 |
|
11/28 | 0% | 1.70 | RR | Natsu Shanten 2018 | Perm | |
| 9 | 957 |
|
🥈 | 2/24 | 0% | 1.40 | RR | Seven ryanmens | Kirov |
| 10 | 113 |
|
64/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 | Saint Petersburg | |
| 11 | 972 |
|
🥉 | 3/72 | 0% | 3.85 | EMA | Haru Shanten 2018 | Perm |
| 12 | 842 |
|
4/20 | 0% | 2.10 | CRR | Spring tournament (Ekaterinburg) | Yekaterinburg | |
| 13 | 926 |
|
🥉 | 3/28 | 0% | 1.70 | RR | Fuyu Shanten | Perm |
| 14 | 579 |
|
9/20 | 0% | 2.10 | EMA | Tyumen Riichi Open 2017 | Tyumen | |
| 15 | 408 |
|
43/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten | Perm | |
| 16 | 87 |
|
22/24 | 0% | 2.20 | RR | Summer EMA rules tournament 2017 | Yekaterinburg | |
| 17 | 1000 |
|
🥇 | 1/32 | 0% | 1.60 | RR | "Summer shanten" tournament, Perm 2017 | Perm |