Lavreniuk Irina
From Moscow, Russia
EMA: 15990327
Common russian riichi rating (CRR)
Rating date Aug. 3, 2025 (latest changes Aug. 3, 2025).
143 place (339.92).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (420.56 * 4 * 0.14 + 318.18 * 2.10 * 0.29 + 461.54 * 2.90 * 0.29 + 666.67 * 3.05 * 0.57 + 413.04 * 2.10 * 0.57 + 473.68 * 1.50 * 0.71 + 539.33 * 3.75 * 1 + 294.12 * 3.05 * 1 + 67.80 * 3.25 * 1) / (4 * 0.14 + 2.10 * 0.29 + 2.90 * 0.29 + 3.05 * 0.57 + 2.10 * 0.57 + 1.50 * 0.71 + 3.75 * 1 + 3.05 * 1 + 3.25 * 1) = 380.88091203703124
p2 = (539.33 * 3.75 * 1 + 666.67 * 3.05 * 0.57 + 294.12 * 3.05 * 1 + 473.68 * 1.50 * 0.71) / max_coefficients = 298.9517915309446
score = 380.88091203703124 * 0.5 + 298.9517915309446 * 0.5 = 339.9163517839879
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-03 | 141 -> 143 | 339.92 | |
| 2025-07-30 | 139 -> 141 | 343.86 -> 339.92 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-26 | 139 | 344.85 -> 343.86 |
Autumn Agari tournament: 43% -> 29% |
| 2025-07-25 | 139 | 345.42 -> 344.85 |
Duplicate riichi mahjong tournament 2024: 86% -> 71% |
| 2025-07-19 | 140 -> 139 | 345.42 | |
| 2025-07-13 | 136 -> 140 | 345.42 | |
| 2025-07-12 | 136 | 342.55 -> 345.42 |
X Russian Championship: 86% -> 71% |
| 2025-07-10 | 133 -> 136 | 355.37 -> 342.55 |
Agari Spring Tournament 2024: 71% -> 57% |
| 2025-07-05 | 134 -> 133 | 355.37 | |
| 2025-07-03 | 134 | 355.83 -> 355.37 |
SPB Riichi Open 2023: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 68 |
|
56/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 2 | 294 |
|
37/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 3 | 539 |
|
42/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 4 | 474 |
|
11/20 | 71% | 1.50 | CRR | Duplicate riichi mahjong tournament 2024 | Moscow | |
| 5 | 19 |
|
106/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 6 | 413 |
|
28/47 | 57% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 7 | 667 |
|
18/52 | 57% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 8 | 462 |
|
22/40 | 29% | 2.90 | CRR | Autumn Agari tournament | Moscow | |
| 9 | 318 |
|
16/23 | 29% | 2.10 | CRR | Mushroom League | Moscow | |
| 10 | 421 |
|
63/108 | 14% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 11 | 391 |
|
54/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 12 | 0 |
|
24/24 | 0% | 2.80 | CRR | Meeting in the billiard room | Moscow | |
| 13 | 427 |
|
44/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 14 | 604 |
|
45/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 15 | 253 |
|
57/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |