Mannas, Robin
Current rating: 1435
Record: 19-22
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 442 | Walters, Noah (1518) | Lost 0-2 | -181485 |
| 2legacy | 631 | Unruh, Rachel (1429) | Lost 0-2 | -191466 |
| 3legacy | 1132 | Dupal, Stephen (1435) | Lost 0-2 | -181448 |
| 4legacy | 1100 | Winkelpleck, Chad (1563) | Lost 1-2 | -161432 |
| 5legacy | 1091 | Morris, Andrew (1488) | Won 2-0 | +191451 |
| 6legacy | 986 | Swanson, Matthew (1440) | Won 2-1 | +171468 |
| 7legacy | 876 | Guerrero, Leopoldo (1593) | Lost 0-2 | -151453 |
| 8legacy | 729 | Macintosh, Fiona (1445) | Lost 1-2 | -181435 |
| top | average opponent: 1489record: 2-6 | new rating: 1435 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 343 | Jo, Antony (1503) | Won 2-1 | +171560 |
| 2sealed | 71 | Stoltzfus, Timothy (1479) | Lost 0-2 | -191541 |
| 3sealed | 336 | Hill, Anthony (1485) | Lost 0-2 | -191522 |
| 4sealed | 373 | Gottlieb, Alexander (1467) | Lost 0-2 | -191503 |
| top | average opponent: 1484record: 1-3 | new rating: 1503 | ||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1548 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 221 | Telkamp, Jeremy (1444) | Lost 0-2 | -191529 |
| 2sealed | 402 | Tomlinson, Scott (1429) | Won 2-0 | +161545 |
| 3sealed | 355 | Dillahunty, Matt (1499) | Won 2-0 | +171562 |
| 4sealed | 231 | Penney, Joseph (1623) | Lost 0-2 | -171545 |
| 5sealed | 319 | Ward, Frank (1488) | Won 2-0 | +171562 |
| 6sealed | 275 | Nadurath, Tahir A (1508) | Lost 0-2 | -191543 |
| top | average opponent: 1499record: 3-3 | new rating: 1543 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 67 | Mills, Tyler (1504) | Lost 0-2 | -191539 |
| 2legacy | 354 | Pawlik, Matthew (1482) | Won 2-0 | +171556 |
| 3legacy | 292 | Potter, Daniel G (1499) | Won 2-1 | +171573 |
| 4legacy | 260 | Clark, Dan (1460) | Lost 1-2 | -201553 |
| 5legacy | 292 | Race, Allan (1476) | Lost 1-2 | -201533 |
| 6legacy | 358 | Smith, Justin P (1482) | Lost 0-2 | -191514 |
| 7legacy | 311 | Coyne, Derrick A (1464) | Won 2-1 | +171531 |
| 8legacy | 237 | Stankowski, Adam J (1485) | Won 2-1 | +171548 |
| top | average opponent: 1481record: 4-4 | new rating: 1548 | ||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 227 | Russell, James (1517) | Won 2-0 | +181518 |
| 2legacy | 107 | Gleasman, Lucas (1518) | Won 2-1 | +181536 |
| 3legacy | 88 | Krouner, Ken (1646) | Lost 1-2 | -161520 |
| 4legacy | 120 | Trogdon, Mark (1505) | Won 2-0 | +181538 |
| 5legacy | 92 | Darby, Scott (1510) | Lost 0-2 | -181520 |
| 6legacy | 188 | Oyler, Ken (1464) | Won 2-1 | +171537 |
| 7legacy | 136 | Cortez, Nicholas (1521) | Won 2-0 | +171554 |
| 8legacy | 116 | Kincaid, Tim (1559) | Won 2-1 | +181572 |
| 9legacy | 74 | Willis, Brandon (1570) | Won 2-1 | +181590 |
| 10legacy | 19 | Kastner, Donald (1716) | Lost 0-2 | -151575 |
| 11legacy | 41 | Lohman, Martin D (1570) | Won 2-0 | +171592 |
| 12legacy | 38 | Franklin, Richard (1610) | Won 2-1 | +191611 |
| 13legacy | 15 | Yurchick, Adam (1631) | Lost 1-2 | -181593 |
| 14legacy | 28 | Diefendorf, Brian (1648) | Lost 1-2 | -171576 |
| 15legacy | 44 | Allen, James C (1549) | Lost 0-2 | -181558 |
| top | average opponent: 1569record: 9-6 | new rating: 1558 | ||