Lavreniuk Irina
From Moscow, Russia
EMA: 15990327
Internal rating (RR)
Rating date Aug. 9, 2025 (latest changes Aug. 9, 2025).
137 place (301.87).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (420.56 * 4 * 0.14 + 666.67 * 3.05 * 0.57 + 413.04 * 2.10 * 0.57 + 18.69 * 4.60 * 0.71 + 539.33 * 3.75 * 1 + 294.12 * 3.05 * 1 + 67.80 * 3.25 * 1) / (4 * 0.14 + 3.05 * 0.57 + 2.10 * 0.57 + 4.60 * 0.71 + 3.75 * 1 + 3.05 * 1 + 3.25 * 1) = 302.6191551499131
p2 = (539.33 * 3.75 * 1 + 666.67 * 3.05 * 0.57 + 294.12 * 3.05 * 1 + 413.04 * 2.10 * 0.57) / max_coefficients = 301.1190789473684
score = 302.6191551499131 * 0.5 + 301.1190789473684 * 0.5 = 301.86911704864076
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-04 | 137 | 300.40 -> 301.87 | |
| 2025-08-03 | 131 -> 137 | 300.40 | |
| 2025-07-30 | 131 | 305.40 -> 300.40 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-13 | 128 -> 131 | 305.40 | |
| 2025-07-12 | 129 -> 128 | 297.26 -> 305.40 |
X Russian Championship: 86% -> 71% |
| 2025-07-10 | 127 -> 129 | 311.00 -> 297.26 |
Agari Spring Tournament 2024: 71% -> 57% |
| 2025-07-03 | 126 -> 127 | 312.79 -> 311.00 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 121 -> 126 | 317.51 -> 312.79 | |
| 2025-06-11 | 124 -> 121 | 318.68 -> 317.51 |
Money can not buy tenpai: 14% -> 0% |
| 2025-06-09 | 125 -> 124 | 318.68 |
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 | 19 |
|
106/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 5 | 413 |
|
28/47 | 57% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 6 | 667 |
|
18/52 | 57% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 7 | 421 |
|
63/108 | 14% | 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 |