Ermolaeva Lada
From Kirov, Russia
Common russian riichi rating (CRR)
Rating date Sept. 22, 2026 (latest changes Sept. 17, 2026).
111 place (456.69).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (903.23 * 2.40 * 0.43 + 42.86 * 3.50 * 0.57 + 44.78 * 4.10 * 0.71 + 837.21 * 3 * 0.86 + 161.29 * 3 * 1 + 629.37 * 4.71 * 1 + 450.70 * 3.40 * 1) / (2.40 * 0.43 + 3.50 * 0.57 + 4.10 * 0.71 + 3 * 0.86 + 3 * 1 + 4.71 * 1 + 3.40 * 1) = 421.58324961160423
p2 = (629.37 * 4.71 * 1 + 837.21 * 3 * 0.86 + 450.70 * 3.40 * 1 + 903.23 * 2.40 * 0.43) / max_coefficients = 491.7936404931862
score = 421.58324961160423 * 0.5 + 491.7936404931862 * 0.5 = 456.6884450523952
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-09-06 | 129 -> 111 | 419.62 -> 456.69 |
Sunset Wolf Cup 2026: 0% -> 100% |
| 2026-09-03 | 130 -> 129 | 414.05 -> 419.62 |
Riichi over The Volga 2025: 71% -> 57% |
| 2026-09-02 | 124 -> 130 | 429.10 -> 414.05 |
Riichi Maslenitsa (shrovetide): 57% -> 43% |
| 2026-09-01 | 125 -> 124 | 429.21 -> 429.10 |
SPB Riichi Open 2024: 14% -> 0% |
| 2026-08-31 | 126 -> 125 | 428.49 -> 429.21 | |
| 2026-08-30 | 123 -> 126 | 428.49 | |
| 2026-08-27 | 124 -> 123 | 428.49 | |
| 2026-08-16 | 119 -> 124 | 428.49 | |
| 2026-08-15 | 124 -> 119 | 420.92 -> 428.49 |
13 bloody tiles: 86% -> 71% |
| 2026-08-04 | 126 -> 124 | 420.92 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 451 |
|
40/72 | 100% | 3.40 | RR | Sunset Wolf Cup 2026 | Saint Petersburg | |
| 2 | 629 |
|
54/144 | 100% | 4.71 | RR | XII Russian Championship | Samara | |
| 3 | 161 |
|
27/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow | |
| 4 | 837 |
|
8/44 | 86% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 5 | 45 |
|
65/68 | 71% | 4.10 | RR | 13 bloody tiles | Perm | |
| 6 | 43 |
|
68/71 | 57% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 7 | 903 |
|
4/32 | 43% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
| 8 | 421 |
|
56/96 | 0% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 9 | 468 |
|
26/48 | 0% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 10 | 617 |
|
42/108 | 0% | 4.60 | RR | X Russian Championship | Perm | |
| 11 | 184 |
|
72/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 12 | 1000 |
|
🥇 | 1/16 | 0% | 1.20 | CRR | Vyatka rooster | Kirov |