Lavreniuk Irina
From Moscow, Russia
EMA: 15990327
Internal rating (RR)
Rating date May 24, 2026 (latest changes May 17, 2026).
169 place (252.40).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (539.33 * 3.75 * 0.43 + 294.12 * 3.05 * 0.71 + 67.80 * 3.25 * 0.71 + 518.52 * 2.45 * 1 + 0) / (3.75 * 0.43 + 3.05 * 0.71 + 3.25 * 0.71 + 2.45 * 1 + 1) = 307.13148219065135
p2 = (518.52 * 2.45 * 1 + 539.33 * 3.75 * 0.43 + 294.12 * 3.05 * 0.71 + 67.80 * 3.25 * 0.71) / max_coefficients = 197.66734006734006
score = 307.13148219065135 * 0.5 + 197.66734006734006 * 0.5 = 252.39941112899572
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-17 | 202 -> 169 | 158.74 -> 252.40 |
Hatiko under the sakura: 0% -> 100% |
| 2026-05-14 | 203 -> 202 | 158.74 | |
| 2026-05-12 | 211 -> 203 | 164.48 -> 158.74 |
X Russian Championship: 14% -> 0% |
| 2026-05-03 | 206 -> 211 | 164.10 -> 164.48 | |
| 2026-05-02 | 207 -> 206 | 164.10 | |
| 2026-04-19 | 200 -> 207 | 164.10 | |
| 2026-04-16 | 201 -> 200 | 160.98 -> 164.10 |
White Wolf Cup: 86% -> 71% |
| 2026-04-13 | 198 -> 201 | 180.77 -> 160.98 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-11 | 196 -> 198 | 180.77 | |
| 2026-04-05 | 191 -> 196 | 180.77 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 519 |
|
14/28 | 100% | 2.45 | RR | Hatiko under the sakura | Korolyov | |
| 2 | 68 |
|
56/60 | 71% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 3 | 294 |
|
37/52 | 71% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 4 | 539 |
|
42/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 5 | 19 |
|
106/108 | 0% | 4.60 | RR | X Russian Championship | Perm | |
| 6 | 413 |
|
28/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 7 | 667 |
|
18/52 | 0% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 8 | 421 |
|
63/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 9 | 391 |
|
54/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 10 | 427 |
|
44/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 11 | 604 |
|
45/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 12 | 253 |
|
57/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |