Koichi Yamamoto
Worlds (2026-08-28)
Placement232/797Record4/3/1Prev. Elo1000New Elo1164 (+164)Prev. Rank-New Rank#2862 (new)
Full standings for Worlds 2026
Matches
| Round | Opponent | Opp. Rank | Opp. Elo | Result | Elo |
|---|---|---|---|---|---|
| R8 |  Pearce Blend | #479 | 1276 | Loss | 1164 (−19) |
| R7 |  Carlos Sepúlveda | #342 | 1306 | Tie | 1183 (+11) |
| R6 |  Romano Pillay | #16531 | 1087 | Win | 1172 (+26) |
| R5 |  Jack Wong | #192 | 1338 | Loss | 1146 (−19) |
| R4 | Grant Shen | #417 | 1281 | Win | 1165 (+58) |
| R3 |  Kazutaka Yoshida | - | 1064 | Win | 1107 (+44) |
| R2 |  Damian Fernandez Urroz | #773 | 1219 | Win | 1063 (+73) |
| R1 | Riley McKay | #60 | 1376 | Loss | 990 (−10) |