Nemchinova Alena

From Samara, Russia

Player page

Internal rating (RR)

Rating date July 12, 2025 (latest changes July 12, 2025).

30 place (654.48).

max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35

p1 = (710.28 * 4 * 0.14 + 420.56 * 4.60 * 0.71 + 893.62 * 2.80 * 1 + 405.06 * 3.65 * 1 + 494.38 * 3.75 * 1 + 71.43 * 2.60 * 1 + 1000 * 3.25 * 1 + 500 * 3.50 * 1 + 835.82 * 4.10 * 1) / (4 * 0.14 + 4.60 * 0.71 + 2.80 * 1 + 3.65 * 1 + 3.75 * 1 + 2.60 * 1 + 3.25 * 1 + 3.50 * 1 + 4.10 * 1) = 590.204883198618

p2 = (835.82 * 4.10 * 1 + 1000 * 3.25 * 1 + 893.62 * 2.80 * 1 + 494.38 * 3.75 * 1) / max_coefficients = 718.7576547231271

score = 590.204883198618 * 0.5 + 718.7576547231271 * 0.5 = 654.4812689608725

Rating changes

Show

all results
Date Place Points Reason
2025-07-12 32 -> 30 645.78 -> 654.48

X Russian Championship: 86% -> 71%
2025-07-03 32 647.01 -> 645.78

SPB Riichi Open 2023: 29% -> 14%
2025-06-15 45 -> 32 581.71 -> 647.01

13 bloody tiles: 0% -> 100%
2025-06-11 46 -> 45 581.71
2025-05-12 45 -> 46 573.11 -> 581.71

X Russian Championship: 100% -> 86%
2025-05-03 44 -> 45 578.70 -> 573.11

SPB Riichi Open 2023: 43% -> 29%

Riichi over The Volga 2025: 0% -> 100%
2025-04-26 42 -> 44 578.70
2025-03-03 42 580.62 -> 578.70

SPB Riichi Open 2023: 57% -> 43%
2025-03-02 41 -> 42 580.62
2025-02-16 60 -> 41 492.94 -> 580.62

White Wolf Cup: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 836 2025-06-15 12/68 100% 4.10 RR 13 bloody tiles Perm
2 500 2025-05-03 36/71 100% 3.50 RR Riichi over The Volga 2025 Samara
3 1000 2025-02-16 🥇 1/60 100% 3.25 RR White Wolf Cup Saint Petersburg
4 71 2025-01-26 40/43 100% 2.60 RR Riichi On Ice Samara
5 494 2024-10-13 46/90 100% 3.75 RR Moscow Riichi 2024 Moscow
6 405 2024-08-04 48/80 100% 3.65 RR Riichi over Volga Samara
7 894 2024-07-14 6/48 100% 2.80 RR Guardian of the Winds Yekaterinburg
8 421 2024-05-12 63/108 71% 4.60 RR X Russian Championship Perm
9 710 2023-09-03 32/108 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg