Guaman, Luis E
Current rating: 1499
| Grand Prix New York 2016 (SOI standard) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 14 | Torres, Rafael (1482) | Lost 0-2 | -181457 |
| 2standard | 607 | Castillo, Carnegie (1482) | Lost 0-2 | -171440 |
| 3standard | 899 | Bohlmann, Kevin (1423) | Won 2-0 | +181458 |
| 4standard | 729 | Storrow, Nathan (1482) | Won 2-0 | +181476 |
| 5standard | 513 | Paolillo, Elijah (1562) | Won 2-0 | +201496 |
| 6standard | 429 | Egli, Walter (1625) | Lost 0-2 | -161480 |
| 7standard | 585 | Elias, Dustin (1500) | Won 2-1 | +181498 |
| 8standard | 490 | Lord, Roger (1514) | Won 2-0 | +191517 |
| 9standard | 325 | Capozzi, Joe (1550) | Lost 0-2 | -181499 |
| top | average opponent: 1513record: 5-4 | new rating: 1499 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 349 | Ayukawa, Noriyuki (1420) | Lost 1-2 | -201473 |
| 2modern | 352 | Fuhrman, Curtis (1459) | Won 2-0 | +181491 |
| 3modern | 305 | St-Martin-Allard, Jonathan (1554) | Lost 1-2 | -171474 |
| 4modern | 531 | Fitterman, Danny (1484) | Won 2-0 | +181492 |
| 5modern | 373 | Pimm, Douglas (1604) | Lost 1-2 | -161476 |
| 6modern | 387 | Carlton, Nolan (1484) | Lost 0-2 | -171459 |
| 7modern | 335 | Rodriguez, Hiram (1464) | Won 2-0 | +181477 |
| 8modern | 240 | Kalajian, Robert (1481) | Lost 1-2 | -181459 |
| 9modern | 208 | Linscott, Megan (1380) | Won 2-0 | +161475 |
| top | average opponent: 1481record: 4-5 | new rating: 1475 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 171 | Welsch, Charles (1518) | Won 2-1 | +181518 |
| 3sealed | 184 | Martin, Aaron [USA] (1580) | Won 2-0 | +191537 |
| 4sealed | 122 | Hutchison, Daniel (1661) | Lost 0-2 | -151522 |
| 5sealed | 250 | Hinkle, Charles (1913) | Lost 1-2 | -121510 |
| 6sealed | 275 | Barteau, Alex (1522) | Lost 1-2 | -171493 |
| top | average opponent: 1639record: 2-3 | new rating: 1493 | ||