Sharafutdinova Gulnara
From Samara, Russia
EMA: 15990366
Internal rating (RR)
Rating date Sept. 5, 2025 (latest changes Sept. 3, 2025).
66 place (524.73).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (914.89 * 2.80 * 0.86 + 126.58 * 3.65 * 0.86 + 619.05 * 2.60 * 1 + 842.86 * 3.50 * 1 + 0) / (2.80 * 0.86 + 3.65 * 0.86 + 2.60 * 1 + 3.50 * 1 + 1) = 566.2799293174573
p2 = (842.86 * 3.50 * 1 + 914.89 * 2.80 * 0.86 + 619.05 * 2.60 * 1 + 126.58 * 3.65 * 0.86) / max_coefficients = 483.1858108108108
score = 566.2799293174573 * 0.5 + 483.1858108108108 * 0.5 = 524.7328700641341
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 61 -> 66 | 538.40 -> 524.73 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 62 -> 61 | 532.04 -> 538.40 | |
| 2025-08-31 | 55 -> 62 | 532.04 | |
| 2025-08-09 | 56 -> 55 | 532.04 | |
| 2025-08-04 | 58 -> 56 | 522.32 -> 532.04 |
Riichi over Volga: 100% -> 86% |
| 2025-08-03 | 57 -> 58 | 522.32 | |
| 2025-07-14 | 55 -> 57 | 539.43 -> 522.32 |
Guardian of the Winds: 100% -> 86% |
| 2025-07-12 | 57 -> 55 | 534.81 -> 539.43 | |
| 2025-07-10 | 58 -> 57 | 534.81 | |
| 2025-07-03 | 61 -> 58 | 525.93 -> 534.81 |
SPB Riichi Open 2023: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 843 |
|
12/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 2 | 619 |
|
17/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 3 | 127 |
|
70/80 | 86% | 3.65 | RR | Riichi over Volga | Samara | |
| 4 | 915 |
|
5/48 | 86% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 5 | 159 |
|
91/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 6 | 977 |
|
🥉 | 3/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm |
| 7 | 44 |
|
88/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" | Perm |