Lavreniuk Irina
From Moscow, Russia
EMA: 15990327
Common russian riichi rating (CRR)
Rating date Oct. 28, 2026 (latest changes Oct. 27, 2026).
188 place (317.05).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (294.12 * 3.05 * 0.29 + 67.80 * 3.25 * 0.29 + 705.88 * 2.30 * 1 + 518.52 * 2.45 * 1 + 0) / (3.05 * 0.29 + 3.25 * 0.29 + 2.30 * 1 + 2.45 * 1 + 1) = 425.5865301705583
p2 = (705.88 * 2.30 * 1 + 518.52 * 2.45 * 1 + 294.12 * 3.05 * 0.29 + 67.80 * 3.25 * 0.29) / max_coefficients = 208.51005840363396
score = 425.5865301705583 * 0.5 + 208.51005840363396 * 0.5 = 317.04829428709616
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-10-24 | 184 -> 188 | 317.05 | |
| 2026-10-17 | 183 -> 184 | 317.05 | |
| 2026-10-16 | 189 -> 183 | 307.70 -> 317.05 |
White Wolf Cup: 43% -> 29% |
| 2026-10-15 | 190 -> 189 | 307.70 | |
| 2026-10-13 | 166 -> 190 | 345.60 -> 307.70 |
Moscow Riichi 2024: 14% -> 0% |
| 2026-10-02 | 165 -> 166 | 345.01 -> 345.60 |
Agari Winter Tournament 2025: 43% -> 29% |
| 2026-09-23 | 167 -> 165 | 345.01 | |
| 2026-09-15 | 168 -> 167 | 345.01 | |
| 2026-09-06 | 164 -> 168 | 345.01 | |
| 2026-08-31 | 164 | 344.64 -> 345.01 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 519 |
|
14/28 | 100% | 2.45 | RR | Hatiko under the sakura | Korolyov | |
| 2 | 706 |
|
16/52 | 100% | 2.30 | CRR | "Furin" club tournament: for the anniversary | Moscow | |
| 3 | 68 |
|
56/60 | 29% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 4 | 294 |
|
37/52 | 29% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 5 | 539 |
|
42/90 | 0% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 6 | 474 |
|
11/20 | 0% | 1.50 | CRR | Duplicate riichi mahjong tournament 2024 | Moscow | |
| 7 | 19 |
|
106/108 | 0% | 4.60 | RR | X Russian Championship | Perm | |
| 8 | 413 |
|
28/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 9 | 667 |
|
18/52 | 0% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 10 | 462 |
|
22/40 | 0% | 2.90 | CRR | Autumn Agari tournament | Moscow | |
| 11 | 318 |
|
16/23 | 0% | 2.10 | CRR | Mushroom League | Moscow | |
| 12 | 421 |
|
63/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 13 | 391 |
|
54/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 14 | 0 |
|
24/24 | 0% | 2.80 | CRR | Meeting in the billiard room | Moscow | |
| 15 | 427 |
|
44/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 16 | 604 |
|
45/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 17 | 253 |
|
57/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |