Semon, Robert
Current rating: 1338
Record: 10-21-1
| Grand Prix Columbus 2019 (modern) | starting rating: 1337 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 56 | Puett, Aaron (1500) | Lost 0-2 | -151322 |
| 2modern | 221 | Baptiste, Steven (1452) | Won 2-1 | +211343 |
| 3modern | 204 | Wittig, Alexander (1541) | Won 2-1 | +211364 |
| 4modern | 114 | Bustos, Michael (1417) | Lost 1-2 | -171347 |
| 5modern | 163 | Dean, Alex (1440) | Lost 0-2 | -161331 |
| 6modern | 202 | Henry, Patrick (1365) | Won 2-0 | +191350 |
| 7modern | 142 | Knapp, Jace (1712) | Lost 0-2 | -121338 |
| top | average opponent: 1490record: 3-4 | new rating: 1338 | ||
| Grand Prix Toronto 2019 (modern) | starting rating: 1387 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 319 | Xia, Jiamu (1604) | Lost 0-2 | -151372 |
| 2modern | 454 | Goldenthal, Joshua (1410) | Lost 0-2 | -171355 |
| 3modern | 628 | Ludington, Kirk (1373) | Lost 1-2 | -181337 |
| top | average opponent: 1462record: 0-3 | new rating: 1337 | ||
| Grand Prix Toronto 2018 (modern) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 213 | LaPorte, Jordan (1429) | Lost 0-2 | -181420 |
| 2modern | 503 | Gobby, Andrew (1446) | Won 2-0 | +181438 |
| 3modern | 601 | Wishart, Keegan (1469) | Lost 1-2 | -171421 |
| 4modern | 660 | Ovsec, Marc (1480) | Draw 1-1 | +11422 |
| 5modern | 640 | Bondarenko, Ilia (1482) | Lost 0-2 | -171405 |
| 6modern | 620 | Banho, Paulo (1339) | Won 2-1 | +171422 |
| 7modern | 488 | Roy, Simon (1426) | Lost 1-2 | -181404 |
| 8modern | 444 | Pigott, Jeffrey (1437) | Lost 1-2 | -171387 |
| top | average opponent: 1439record: 2-5-1 | new rating: 1387 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2411 | Lensink, Brendan (1462) | Lost 0-2 | -191474 |
| 2modern | 2529 | Liu, Stephen (1417) | Won 2-0 | +171491 |
| 3modern | 2594 | Macfarlane, Alan (1497) | Lost 0-2 | -181473 |
| 4modern | 2599 | Wiley, Benjamin (1519) | Lost 1-2 | -171456 |
| 5modern | 2624 | Andres, Nick (1462) | Lost 1-2 | -181438 |
| top | average opponent: 1471record: 1-4 | new rating: 1438 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 261 | Rageth, Jacob (1522) | Won 2-1 | +181518 |
| 2modern | 255 | Lusignan, Travis (1484) | Won 2-0 | +181536 |
| 3modern | 157 | Tubergen, Pieter (1795) | Lost 0-2 | -141522 |
| 4modern | 341 | Thompson, Kale (1734) | Lost 0-2 | -141508 |
| 5modern | 815 | Csizek, Anthony (1500) | Won 2-0 | +181526 |
| 6modern | 419 | Gradert, Benjamin (1515) | Won 2-1 | +181544 |
| 7modern | 498 | Perez Jr., Raymond (1862) | Lost 0-2 | -131531 |
| 8modern | 509 | Roohi, Arya (1559) | Lost 0-2 | -171514 |
| 9modern | 561 | Hockey, Shelby (1325) | Lost 0-2 | -211493 |
| top | average opponent: 1588record: 4-5 | new rating: 1493 | ||