Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date May 20, 2025 (latest changes May 19, 2025).

113 place (392.79).

max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266

p1 = (700.93 * 4 * 0.29 + 239.13 * 2.10 * 0.86 + 484.21 * 3.85 * 1 + 593.22 * 3.25 * 1 + 0) / (4 * 0.29 + 2.10 * 0.86 + 3.85 * 1 + 3.25 * 1 + 1) = 454.9263722401476

p2 = (593.22 * 3.25 * 1 + 484.21 * 3.85 * 1 + 700.93 * 4 * 0.29 + 239.13 * 2.10 * 0.86) / max_coefficients = 330.66099024134024

score = 454.9263722401476 * 0.5 + 330.66099024134024 * 0.5 = 392.7936812407439

Rating changes

Show

all results
Date Place Points Reason
2025-05-19 114 -> 113 392.79
2025-05-17 111 -> 114 392.79
2025-05-12 112 -> 111 385.94 -> 392.79
2025-05-03 99 -> 112 404.63 -> 385.94

SPB Riichi Open 2023: 43% -> 29%
2025-04-27 96 -> 99 404.63
2025-04-26 95 -> 96 404.63
2025-04-25 96 -> 95 404.63
2025-04-11 98 -> 96 404.63
2025-03-30 98 404.02 -> 404.63

Seihoku spring tournament 2024: 100% -> 86%
2025-03-23 97 -> 98 404.02

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 593 2025-02-16 25/60 100% 3.25 RR White Wolf Cup Saint Petersburg
2 484 2024-09-01 50/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
3 239 2024-03-30 36/47 86% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
4 701 2023-09-03 33/108 29% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
5 355 2023-02-25 21/32 0% 1.80 CRR Earth cup Saint Petersburg
6 282 2022-08-27 29/40 0% 1.80 CRR Sun tournament Saint Petersburg