Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Sept. 4, 2026 (latest changes Sept. 3, 2026).

236 place (129.49).

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

p1 = (593.22 * 3.25 * 0.43 + 40.54 * 3.40 * 1 + 258.06 * 1.80 * 1 + 0 + 0) / (3.25 * 0.43 + 3.40 * 1 + 1.80 * 1 + 1 + 1) = 166.2630412140185

p2 = (593.22 * 3.25 * 0.43 + 258.06 * 1.80 * 1 + 40.54 * 3.40 * 1) / max_coefficients = 92.71187540558078

score = 166.2630412140185 * 0.5 + 92.71187540558078 * 0.5 = 129.48745830979965

Rating changes

Show

all results
Date Place Points Reason
2026-09-03 237 -> 236 129.49
2026-09-01 228 -> 237 159.08 -> 129.49

SPB Riichi Open 2024: 14% -> 0%
2026-08-31 229 -> 228 158.90 -> 159.08
2026-08-16 213 -> 229 178.19 -> 158.90

White Wolf Cup: 57% -> 43%
2026-08-15 213 177.72 -> 178.19
2026-08-04 219 -> 213 177.72
2026-08-02 218 -> 219 177.72
2026-07-26 219 -> 218 177.72
2026-07-25 229 -> 219 144.79 -> 177.72

Seihoku Summer Tournament 2026: 0% -> 100%
2026-07-18 225 -> 229 144.79

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
3 593 2025-02-16 25/60 43% 3.25 RR White Wolf Cup Saint Petersburg
4 484 2024-09-01 50/96 0% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 239 2024-03-30 36/47 0% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
6 701 2023-09-03 33/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg