Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 22, 2026 (latest changes Sept. 17, 2026).

277 place (209.22).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (593.22 * 3.25 * 0.43 + 666.67 * 2 * 0.71 + 40.54 * 3.40 * 1 + 258.06 * 1.80 * 1 + 0) / (3.25 * 0.43 + 2 * 0.71 + 3.40 * 1 + 1.80 * 1 + 1) = 263.9335812582095

p2 = (666.67 * 2 * 0.71 + 593.22 * 3.25 * 0.43 + 258.06 * 1.80 * 1 + 40.54 * 3.40 * 1) / max_coefficients = 154.5158987670344

score = 263.9335812582095 * 0.5 + 154.5158987670344 * 0.5 = 209.22474001262194

Rating changes

Show

all results
Date Place Points Reason
2026-09-15 278 -> 277 209.22
2026-09-06 272 -> 278 209.22
2026-09-04 274 -> 272 209.22
2026-09-02 275 -> 274 209.22
2026-09-01 252 -> 275 235.86 -> 209.22

SPB Riichi Open 2024: 14% -> 0%
2026-08-31 252 235.60 -> 235.86
2026-08-30 249 -> 252 235.60
2026-08-16 238 -> 249 251.80 -> 235.60

White Wolf Cup: 57% -> 43%
2026-08-15 239 -> 238 251.14 -> 251.80
2026-08-14 228 -> 239 262.51 -> 251.14

Tonpu-master: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 258 2026-07-25 24/32 100% 1.80 RR Seihoku Summer Tournament 2026 Saint Petersburg
2 41 2026-02-23 72/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
3 667 2025-06-14 7/19 71% 2.00 CRR Tonpu-master Saint Petersburg
4 593 2025-02-16 25/60 43% 3.25 RR White Wolf Cup Saint Petersburg
5 484 2024-09-01 50/96 0% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
6 239 2024-03-30 36/47 0% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
7 701 2023-09-03 33/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
8 355 2023-02-25 21/32 0% 1.80 CRR Earth cup Saint Petersburg
9 282 2022-08-27 29/40 0% 1.80 CRR Sun tournament Saint Petersburg