Orsomarso, Marcelo
Current rating: 1576
Record: 35-33-3
| Grand Prix Sao Paulo 2017 (modern) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 203 | Oliveira Coelho, Alison (1487) | Lost 0-2 | -201590 |
| 2modern | 507 | Ferreira, Joao Victor (1560) | Lost 1-2 | -191571 |
| 3modern | 513 | Lanzarotti Junior, Jose Carlos (1499) | Lost 1-2 | -191552 |
| 4modern | 567 | Borges, Natan (1450) | Lost 1-2 | -201532 |
| 5modern | 562 | Augusto Santos, Vitor (1428) | Won 2-0 | +161548 |
| 6modern | 505 | Serrano, Leandro (1447) | Won 2-0 | +161564 |
| 7modern | 463 | Montero Venegas, Sebastian (1462) | Won 2-1 | +161580 |
| 8modern | 334 | Borrere, Bruno (1486) | Won 2-0 | +171597 |
| 9modern | 267 | Machado, Max (1481) | Lost 1-2 | -211576 |
| top | average opponent: 1478record: 4-5 | new rating: 1576 | ||
| Grand Prix Santiago 2016 (KLD standard) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 132 | Carrasco Maureira, Francisco Arturo (1467) | Won 2-1 | +161549 |
| 2standard | 165 | Ruiz, Gabriela (1517) | Won 2-1 | +181567 |
| 3standard | 18 | Meza, Luis (1573) | Won 2-1 | +181585 |
| 4standard | 21 | Villalobos, Antonio (1603) | Draw 1-1 | 01585 |
| 5standard | 40 | Ferry, Sergio (1576) | Lost 0-2 | -181567 |
| 6standard | 113 | Garcia, Martin (1590) | Won 2-1 | +191586 |
| 7standard | 58 | Lopez, Daniel [ECU] (1472) | Lost 1-2 | -201566 |
| 8standard | 118 | Dean, Paul (1977) | Won 0-0 | +251591 |
| 9standard | 79 | Larrain, Alfredo (1532) | Won 2-1 | +171608 |
| 10standard | 43 | Gil, Matias (1575) | Lost 1-2 | -191589 |
| 11standard | 71 | Mora, Sebastian (1734) | Lost 1-2 | -151574 |
| 12standard | 84 | Navas, Luis (1697) | Lost 0-2 | -161558 |
| 13standard | 90 | Elgueta, Carlos (1526) | Won 2-0 | +171575 |
| 14standard | 79 | Pereira, Vinicius (1529) | Won 2-0 | +171592 |
| 15standard | 64 | Molina, Matias (1555) | Won 2-0 | +181610 |
| top | average opponent: 1595record: 9-5-1 | new rating: 1610 | ||
| Grand Prix Santiago 2015 (ORI limited) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 57 | Figueroa, Joao (1591) | Lost 1-2 | -171490 |
| 4sealed | 181 | Lagos, Cristian (1586) | Lost 0-2 | -161474 |
| 5sealed | 198 | Contreras, Fabian (1502) | Won 2-1 | +191493 |
| 6sealed | 106 | Orellana, Matias (1516) | Won 2-0 | +181511 |
| 7sealed | 135 | Grinblat, Ariel (1419) | Won 2-0 | +161527 |
| 8sealed | 96 | Diaz, Enrique (1561) | Won 2-0 | +191546 |
| 9sealed | 41 | Sanchez, Daniel [CHL] (1808) | Lost 0-2 | -131533 |
| top | average opponent: 1569record: 4-3 | new rating: 1533 | ||
| Grand Prix Buenos Aires 2015 (DTK standard) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 90 | Fernandes Ferraz, Diego (1739) | Lost 1-2 | -131456 |
| 4standard | 87 | Tavella, Martin (1532) | Won 2-1 | +201476 |
| 5standard | 112 | Natale, Federico (1537) | Lost 0-2 | -171459 |
| 6standard | 112 | Monsu C, Santiago (1519) | Won 2-0 | +191478 |
| 7standard | 102 | Martinez Torales, Jorge (1533) | Won 2-0 | +191497 |
| 8standard | 84 | Cartechini, Mariano (1859) | Won 2-1 | +241521 |
| 9standard | 47 | Nagy, Ariel (1729) | Lost 1-2 | -141507 |
| top | average opponent: 1636record: 4-3 | new rating: 1507 | ||
| Grand Prix Sao Paulo 2015 (DTK standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 68 | Costa de Queivol, Marcus Vinicius (1536) | Lost 1-2 | -171464 |
| 4standard | 329 | Rodrigues, Vinicius (1519) | Lost 1-2 | -171447 |
| 5standard | 358 | Didona, Jonata (1509) | Lost 1-2 | -171430 |
| 6standard | 430 | Palomo, Leonardo (1482) | Won 2-0 | +191449 |
| 7standard | 304 | Magyar, Rudolf (1501) | Won 2-0 | +191468 |
| 8standard | 254 | Valadao, Felipe (1519) | Won 2-0 | +191487 |
| 9standard | 180 | Otuzi, Lucas (1508) | Lost 0-2 | -181469 |
| top | average opponent: 1511record: 3-4 | new rating: 1469 | ||
| Grand Prix Santiago 2014 (KTK standard) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 40 | Teixeira, Vinicius (1535) | Won 2-0 | +181515 |
| 4standard | 13 | Lang, Mauricio (1436) | Lost 1-2 | -191496 |
| 5standard | 63 | Valdivia, Felipe (1544) | Lost 1-2 | -171479 |
| 6standard | 105 | Zanolli, Mario (1513) | Won 2-0 | +181497 |
| 7standard | 80 | Ballon, Pablo (1530) | Draw 1-1 | +11498 |
| 8standard | 96 | Vega Parra, Francisco (1554) | Lost 0-2 | -171481 |
| top | average opponent: 1519record: 2-3-1 | new rating: 1481 | ||
| Grand Prix Buenos Aires 2014 (BNG standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 53 | Chilperico, Matias (1506) | Lost 0-2 | -181500 |
| 5standard | 53 | Vasquez, Ramiro (1521) | Won 2-0 | +181518 |
| 6standard | 53 | Romero, Miguel (1666) | Won 2-1 | +211539 |
| 7standard | 53 | Avendano, Alvaro (1559) | Lost 0-2 | -181521 |
| 8standard | 53 | Chelia, Tomas (1517) | Won 2-0 | +181539 |
| 9standard | 53 | Lemos, Tulio A (1571) | Lost 0-2 | -171522 |
| 10standard | 62 | Edel, Willy (1861) | Won 2-1 | +241546 |
| 11standard | 42 | Gozzo, Giuliano (1653) | Lost 1-2 | -161530 |
| 12standard | 53 | Montoto, Rodrigo (1530) | Won 2-1 | +181548 |
| 13standard | 36 | Betschart, Mauro (1562) | Lost 0-2 | -181530 |
| 14standard | 48 | Bossaneli Araujo, William (1638) | Lost 0-2 | -161514 |
| 15standard | 56 | Matoso Mendes, Luis Fernando (1555) | Lost 1-2 | -171497 |
| top | average opponent: 1595record: 5-7 | new rating: 1497 | ||
| Grand Prix Buenos Aires 2008 (SHM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 79 | Balestra, Oscar (1500) | Draw 1-1 | 01500 |
| 2standard | 145 | Caballero, Gabriel David (1500) | Lost 1-2 | -181482 |
| 3standard | 221 | Calarota, Nicolas (1499) | Lost 0-2 | -181464 |
| 4standard | 262 | RODRIGUEZ, LEANDRO (1446) | Lost 1-2 | -181446 |
| 5standard | 254 | LORENZATTO, EDUARDO (1447) | Won 2-0 | +181464 |
| 6standard | 225 | Romero, Hernan (1464) | Won 2-1 | +181482 |
| 7standard | 175 | KRAMER, ALBERTO OSCAR (1483) | Won 2-0 | +181500 |
| 8standard | 135 | PALMEYRO, ALEJANDRO (1502) | Won 2-0 | +181518 |
| top | average opponent: 1480record: 4-3-1 | new rating: 1518 | ||