Grebnev Grigorii

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date June 15, 2026 (latest changes June 14, 2026).

213 place (179.41).

max_coefficients = (4.71 * 1 + 4.10 * 1 + 3.90 * 1 + 3.45 * 1) = 16.16

p1 = (484.21 * 3.85 * 0.29 + 593.22 * 3.25 * 0.71 + 40.54 * 3.40 * 1 + 0 + 0) / (3.85 * 0.29 + 3.25 * 0.71 + 3.40 * 1 + 1 + 1) = 232.11569112455817

p2 = (593.22 * 3.25 * 0.71 + 484.21 * 3.85 * 0.29 + 40.54 * 3.40 * 1) / max_coefficients = 126.70730198019801

score = 232.11569112455817 * 0.5 + 126.70730198019801 * 0.5 = 179.41149655237808

Rating changes

Show

all results
Date Place Points Reason
2026-06-14 191 -> 213 185.00 -> 179.41
2026-06-13 192 -> 191 185.00
2026-06-09 194 -> 192 185.00
2026-05-26 195 -> 194 185.00
2026-05-17 194 -> 195 185.00
2026-05-14 195 -> 194 185.00
2026-05-12 205 -> 195 185.00
2026-05-03 201 -> 205 184.54 -> 185.00
2026-05-01 191 -> 201 200.85 -> 184.54

SPB Riichi Open 2024: 43% -> 29%
2026-04-26 192 -> 191 200.85

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 41 2026-02-23 72/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
2 593 2025-02-16 25/60 71% 3.25 RR White Wolf Cup Saint Petersburg
3 484 2024-09-01 50/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
4 239 2024-03-30 36/47 0% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
5 701 2023-09-03 33/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg