Lavreniuk Irina
From Moscow, Russia
EMA: 15990327
Internal rating (RR)
Rating date April 20, 2026 (latest changes April 19, 2026).
208 place (164.10).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (18.69 * 4.60 * 0.14 + 539.33 * 3.75 * 0.43 + 294.12 * 3.05 * 0.71 + 67.80 * 3.25 * 0.71 + 0) / (4.60 * 0.14 + 3.75 * 0.43 + 3.05 * 0.71 + 3.25 * 0.71 + 1) = 216.0140533801779
p2 = (539.33 * 3.75 * 0.43 + 294.12 * 3.05 * 0.71 + 67.80 * 3.25 * 0.71 + 18.69 * 4.60 * 0.14) / max_coefficients = 112.19264214046821
score = 216.0140533801779 * 0.5 + 112.19264214046821 * 0.5 = 164.10334776032306
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-04-19 | 201 -> 208 | 164.10 | |
| 2026-04-16 | 202 -> 201 | 160.98 -> 164.10 |
White Wolf Cup: 86% -> 71% |
| 2026-04-13 | 199 -> 202 | 180.77 -> 160.98 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-11 | 197 -> 199 | 180.77 | |
| 2026-04-05 | 192 -> 197 | 180.77 | |
| 2026-04-02 | 190 -> 192 | 186.62 -> 180.77 |
Agari Winter Tournament 2025: 86% -> 71% |
| 2026-03-30 | 182 -> 190 | 207.16 -> 186.62 |
Seihoku spring tournament 2024: 14% -> 0% |
| 2026-03-12 | 186 -> 182 | 198.33 -> 207.16 |
X Russian Championship: 29% -> 14% |
| 2026-03-10 | 183 -> 186 | 213.44 -> 198.33 |
Agari Spring Tournament 2024: 14% -> 0% |
| 2026-02-23 | 176 -> 183 | 213.44 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 68 |
|
56/60 | 71% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 2 | 294 |
|
37/52 | 71% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 3 | 539 |
|
42/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 4 | 19 |
|
106/108 | 14% | 4.60 | RR | X Russian Championship | Perm | |
| 5 | 413 |
|
28/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 6 | 667 |
|
18/52 | 0% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 7 | 421 |
|
63/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 8 | 391 |
|
54/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 9 | 427 |
|
44/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 10 | 604 |
|
45/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 11 | 253 |
|
57/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |