Lavreniuk Irina

From Moscow, Russia

EMA: 15990327

Player page

Internal rating (RR)

Rating date May 28, 2023 (latest changes May 28, 2023).

47 place (380.71).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.71 + 3.10 * 0.57) = 12.52139

p1 = (253.33 * 3.45 * 0.43 + 603.60 * 4.05 * 1 + 426.67 * 4.20 * 1 + 0 + 0) / (3.45 * 0.43 + 4.05 * 1 + 4.20 * 1 + 1 + 1) = 393.1554046622507

p2 = (603.60 * 4.05 * 1 + 426.67 * 4.20 * 1 + 253.33 * 3.45 * 0.43) / max_coefficients = 368.2650248894093

score = 393.1554046622507 * 0.5 + 368.2650248894093 * 0.5 = 380.71021477582997

Rating changes

Show

all results
Date Place Points Reason
2023-05-28 49 -> 47 379.90 -> 380.71

Saint Petersburg Open 2021: 57% -> 43%
2023-05-20 50 -> 49 372.87 -> 379.90
2023-05-06 51 -> 50 372.87
2023-04-19 53 -> 51 369.63 -> 372.87
2023-03-28 55 -> 53 368.38 -> 369.63

Saint Petersburg Open 2021: 71% -> 57%
2023-03-20 56 -> 55 362.14 -> 368.38
2023-03-06 59 -> 56 362.14
2023-02-19 59 359.86 -> 362.14
2023-01-28 60 -> 59 358.25 -> 359.86

Saint Petersburg Open 2021: 86% -> 71%
2022-12-19 60 356.62 -> 358.25

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 427 2022-11-06 44/76 100% 4.20 RR IX Russian Riichi Championship
2 604 2022-06-12 45/112 100% 4.05 RR Moscow Riichi 2022
3 253 2021-11-28 57/76 43% 3.45 RR Saint Petersburg Open 2021