Grebnev Grigorii
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Nov. 3, 2026 (latest changes Nov. 3, 2026).
238 place (125.12).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (593.22 * 3.25 * 0.29 + 40.54 * 3.40 * 1 + 258.06 * 1.80 * 1 + 142.86 * 1.90 * 1 + 0) / (3.25 * 0.29 + 3.40 * 1 + 1.80 * 1 + 1.90 * 1 + 1) = 157.78989369802932
p2 = (593.22 * 3.25 * 0.29 + 258.06 * 1.80 * 1 + 142.86 * 1.90 * 1 + 40.54 * 3.40 * 1) / max_coefficients = 92.44711226476313
score = 157.78989369802932 * 0.5 + 92.44711226476313 * 0.5 = 125.11850298139623
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-11-02 | 239 -> 238 | 125.12 | |
| 2026-10-31 | 242 -> 239 | 108.35 -> 125.12 |
Seihoku autumn tournament 2026: 0% -> 100% |
| 2026-10-16 | 235 -> 242 | 129.49 -> 108.35 |
White Wolf Cup: 43% -> 29% |
| 2026-10-13 | 243 -> 235 | 129.49 | |
| 2026-09-26 | 242 -> 243 | 129.49 | |
| 2026-09-06 | 236 -> 242 | 129.49 | |
| 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% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 143 |
|
31/36 | 100% | 1.90 | RR | Seihoku autumn tournament 2026 | Saint Petersburg | |
| 2 | 258 |
|
24/32 | 100% | 1.80 | RR | Seihoku Summer Tournament 2026 | Saint Petersburg | |
| 3 | 41 |
|
72/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 4 | 593 |
|
25/60 | 29% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 5 | 484 |
|
50/96 | 0% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 6 | 239 |
|
36/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 7 | 701 |
|
33/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |