Lavreniuk Irina
From Moscow, Russia
EMA: 15990327
Internal rating (RR)
Rating date March 6, 2024 (latest changes March 6, 2024).
47 place (413.22).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.57 + 4.05 * 0.29) = 11.306965
p1 = (603.60 * 4.05 * 0.29 + 426.67 * 4.20 * 0.57 + 390.80 * 3.75 * 1 + 420.56 * 4 * 1 + 0) / (4.05 * 0.29 + 4.20 * 0.57 + 3.75 * 1 + 4 * 1 + 1) = 395.7214471642684
p2 = (420.56 * 4 * 1 + 390.80 * 3.75 * 1 + 426.67 * 4.20 * 0.57 + 603.60 * 4.05 * 0.29) / max_coefficients = 430.7194724667495
score = 395.7214471642684 * 0.5 + 430.7194724667495 * 0.5 = 413.22045981550895
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-03-06 | 47 | 413.84 -> 413.22 |
IX Russian Riichi Championship: 71% -> 57% |
| 2024-02-12 | 43 -> 47 | 422.28 -> 413.84 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-06 | 41 -> 43 | 422.45 -> 422.28 |
IX Russian Riichi Championship: 86% -> 71% |
| 2023-12-19 | 42 -> 41 | 422.45 | |
| 2023-12-12 | 41 -> 42 | 429.83 -> 422.45 |
Moscow Riichi 2022: 57% -> 43% |
| 2023-11-28 | 38 -> 41 | 441.67 -> 429.83 |
Saint Petersburg Open 2021: 14% -> 0% |
| 2023-11-20 | 39 -> 38 | 441.67 | |
| 2023-11-06 | 42 -> 39 | 441.04 -> 441.67 |
IX Russian Riichi Championship: 100% -> 86% |
| 2023-10-12 | 42 | 447.28 -> 441.04 |
Moscow Riichi 2022: 71% -> 57% |
| 2023-09-28 | 44 -> 42 | 444.31 -> 447.28 |
Saint Petersburg Open 2021: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 421 |
|
63/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 391 |
|
54/88 | 100% | 3.75 | RR | Money can not buy tenpai |
| 3 | 427 |
|
44/76 | 57% | 4.20 | RR | IX Russian Riichi Championship |
| 4 | 604 |
|
45/112 | 29% | 4.05 | RR | Moscow Riichi 2022 |
| 5 | 253 |
|
57/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |