Vollmerhausen, Robert
Current rating: 1477
Record: 12-16
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 293 | Heck, Jack (1484) | Lost 1-2 | -161398 |
| 2modern | 568 | Yeung, Kevin (1482) | Won 2-1 | +191417 |
| 3modern | 605 | Friesen, Yascha (1535) | Won 2-0 | +201437 |
| 4modern | 248 | Butterfield, Robert (1513) | Won 2-0 | +201457 |
| 5modern | 1198 | Nanez, Kenneth (1533) | Won 2-0 | +191476 |
| 6modern | 1186 | Watters, Ryan (1513) | Won 2-0 | +191495 |
| 7modern | 138 | Roether, Oscar (1557) | Lost 1-2 | -171478 |
| 8modern | 162 | Cortez, Salvador (1448) | Won 2-1 | +171495 |
| 9modern | 80 | Ngo, Scott (1534) | Lost 0-2 | -171478 |
| 11modern | 2134 | Wang, John (1589) | Won 2-1 | +201498 |
| 12modern | 2066 | Riano, Shaye (1607) | Won 2-1 | +201518 |
| 13modern | 2042 | Barry, Thomas (1885) | Lost 0-2 | -121506 |
| 14modern | 2075 | Kelley, Fred (1485) | Lost 1-2 | -181488 |
| 15modern | 2099 | Corvese, Harry (1871) | Lost 1-2 | -111477 |
| top | average opponent: 1574record: 8-6 | new rating: 1477 | ||
| Grand Prix Los Angeles 2019 (modern) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 337 | Donovan, Tate (1725) | Won 2-1 | +231458 |
| 4modern | 169 | Morrison, Jayce (1643) | Lost 1-2 | -151443 |
| 5modern | 201 | Crosthwaite, Rodolfo (1499) | Lost 1-2 | -171426 |
| 6modern | 282 | Wolbers, Andrew (1769) | Lost 1-2 | -121414 |
| top | average opponent: 1659record: 1-3 | new rating: 1414 | ||
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 759 | Lewis, Ben (1463) | Won 2-0 | +181465 |
| 2modern | 74 | Bartley, Matthew (1764) | Lost 0-2 | -131452 |
| 4modern | 670 | Brown, Michael (1528) | Lost 0-2 | -161436 |
| 5modern | 729 | Barajas, Ricardo (1357) | Won 2-1 | +161452 |
| 6modern | 586 | Maloney, Kyle (1480) | Lost 1-2 | -171435 |
| top | average opponent: 1518record: 2-3 | new rating: 1435 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Almikhi, Assim (1455) | Won 2-1 | +171517 |
| 2sealed | 281 | Misura, Logan (1518) | Lost 0-2 | -181499 |
| 3sealed | 808 | Delliskave, Nick (1498) | Lost 0-2 | -181481 |
| 4sealed | 882 | Humphrey, Jarred (1466) | Lost 1-2 | -181463 |
| 5sealed | 877 | Stinnett, Benjamin (1566) | Lost 1-2 | -161447 |
| top | average opponent: 1501record: 1-4 | new rating: 1447 | ||