Lavreniuk Irina

From Moscow, Russia

EMA: 15990327

Player page

Internal rating (RR)

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

43 place (447.28).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915

p1 = (253.33 * 3.45 * 0.14 + 603.60 * 4.05 * 0.71 + 426.67 * 4.20 * 1 + 390.80 * 3.75 * 1 + 420.56 * 4 * 1) / (3.45 * 0.14 + 4.05 * 0.71 + 4.20 * 1 + 3.75 * 1 + 4 * 1) = 444.10899378713503

p2 = (426.67 * 4.20 * 1 + 603.60 * 4.05 * 0.71 + 420.56 * 4 * 1 + 390.80 * 3.75 * 1) / max_coefficients = 450.4458861349001

score = 444.10899378713503 * 0.5 + 450.4458861349001 * 0.5 = 447.27743996101754

Rating changes

Show

all results
Date Place Points Reason
2023-09-28 45 -> 43 444.31 -> 447.28

Saint Petersburg Open 2021: 29% -> 14%
2023-09-20 46 -> 45 444.31
2023-09-06 45 -> 46 444.31
2023-09-03 48 -> 45 409.28 -> 444.31

SPB Riichi Open 2023: 0% -> 100%
2023-08-19 49 -> 48 409.28
2023-08-12 48 -> 49 417.66 -> 409.28

Moscow Riichi 2022: 86% -> 71%
2023-07-28 48 419.39 -> 417.66

Saint Petersburg Open 2021: 43% -> 29%
2023-07-20 49 -> 48 411.73 -> 419.39
2023-06-12 48 -> 49 419.39 -> 411.73

Moscow Riichi 2022: 100% -> 86%
2023-06-11 48 380.71 -> 419.39

Money can not buy tenpai: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 421 2023-09-03 63/108 100% 4.00 RR SPB Riichi Open 2023
2 391 2023-06-11 54/88 100% 3.75 RR Money can not buy tenpai
3 427 2022-11-06 44/76 100% 4.20 RR IX Russian Riichi Championship
4 604 2022-06-12 45/112 71% 4.05 RR Moscow Riichi 2022
5 253 2021-11-28 57/76 14% 3.45 RR Saint Petersburg Open 2021