Ermolaeva Lada
From Kirov, Russia
Common russian riichi rating (CRR)
Rating date May 17, 2025 (latest changes May 17, 2025).
81 place (476.30).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (183.91 * 3.75 * 0.14 + 616.82 * 4.60 * 0.86 + 468.09 * 2.80 * 1 + 421.05 * 3.85 * 1 + 903.23 * 2.40 * 1 + 42.86 * 3.50 * 1) / (3.75 * 0.14 + 4.60 * 0.86 + 2.80 * 1 + 3.85 * 1 + 2.40 * 1 + 3.50 * 1) = 456.87429952136233
p2 = (616.82 * 4.60 * 0.86 + 903.23 * 2.40 * 1 + 421.05 * 3.85 * 1 + 468.09 * 2.80 * 1) / max_coefficients = 495.7229346276426
score = 456.87429952136233 * 0.5 + 495.7229346276426 * 0.5 = 476.29861707450243
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-05-12 | 79 -> 81 | 481.78 -> 476.30 |
X Russian Championship: 100% -> 86% |
| 2025-05-10 | 80 -> 79 | 481.78 | |
| 2025-05-03 | 61 -> 80 | 533.59 -> 481.78 |
Riichi over The Volga 2025: 0% -> 100% |
| 2025-04-22 | 62 -> 61 | 533.59 | |
| 2025-04-13 | 61 -> 62 | 533.59 | |
| 2025-04-11 | 62 -> 61 | 526.63 -> 533.59 |
Money can not buy tenpai: 29% -> 14% |
| 2025-03-30 | 63 -> 62 | 526.63 | |
| 2025-03-10 | 64 -> 63 | 526.63 | |
| 2025-03-03 | 67 -> 64 | 526.63 | |
| 2025-03-02 | 97 -> 67 | 412.13 -> 526.63 |
Riichi Maslenitsa (shrovetide): 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 43 |
|
68/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 2 | 903 |
|
4/32 | 100% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
| 3 | 421 |
|
56/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 4 | 468 |
|
26/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 5 | 617 |
|
42/108 | 86% | 4.60 | RR | X Russian Championship | Perm | |
| 6 | 184 |
|
72/88 | 14% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 7 | 1000 |
|
🥇 | 1/16 | 0% | 1.20 | CRR | Vyatka rooster | Kirov |