Perotti, Efrem
Current rating: 1555
Record: 38-33-1
| Grand Prix Lille 2016 (modern) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 415 | Jousma, Baukejan (1627) | Won 2-0 | +181622 |
| 2modern | 145 | Vanraepenbusch, Rien (1517) | Won 2-0 | +161638 |
| 3modern | 94 | Donovan, Jamie (1509) | Lost 1-2 | -201618 |
| 4modern | 375 | Lippmann, Robert (1708) | Lost 0-2 | -171601 |
| 5modern | 472 | Decomble, Aurelien (1417) | Lost 1-2 | -211580 |
| 6modern | 580 | Savignac, Pierre (1395) | Won 2-0 | +151595 |
| 7modern | 578 | Regel, Adrian (1503) | Lost 0-2 | -201575 |
| 8modern | 578 | Colas, Vincent (1445) | Lost 0-2 | -201555 |
| top | average opponent: 1515record: 3-5 | new rating: 1555 | ||
| Grand Prix Bologna 2016 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 607 | Sumukari, Albin (1409) | Won 2-1 | +171499 |
| 2modern | 232 | Amabiglia, Mattia (1516) | Won 2-0 | +181517 |
| 3modern | 157 | Holtmann, Niklas (1699) | Won 2-0 | +221539 |
| 4modern | 259 | Mangone, Robert (1556) | Lost 0-2 | -181521 |
| 5modern | 242 | Luczak, Miroslaw (1602) | Won 2-1 | +191540 |
| 6modern | 133 | Fokkema, Toon (1267) | Won 2-1 | +141554 |
| 7modern | 97 | Knocinski, Przemek (1829) | Won 2-0 | +221576 |
| 8modern | 71 | Kyborg, Eric (1600) | Won 2-0 | +191595 |
| 9modern | 22 | Garcia, Joseba Inaki (1590) | Won 2-0 | +181613 |
| 10modern | 21 | Lippi, Alessandro (1683) | Lost 0-2 | -171596 |
| 11modern | 60 | Perez, Ruben (1777) | Lost 1-2 | -151581 |
| 12modern | 79 | Pizzi, William (1584) | Won 2-0 | +181599 |
| 13modern | 70 | Canavesi, Daniele (1717) | Lost 0-2 | -151584 |
| 14modern | 137 | Marek, Krzysztof (1662) | Draw 1-1 | +11585 |
| 15modern | 115 | Hubertus, David (1620) | Won 2-0 | +191604 |
| top | average opponent: 1607record: 10-4-1 | new rating: 1604 | ||
| Grand Prix Milan 2014 (modern) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 148 | Tasselli, Pietro Anselmo (1548) | Won 2-1 | +181582 |
| 4modern | 175 | Gatica, Miguel (1840) | Lost 0-2 | -141568 |
| 5modern | 103 | Bolognesi, Matteo (1537) | Lost 0-2 | -181550 |
| 6modern | 455 | Severin, Thoralf (1908) | Lost 0-2 | -121538 |
| 7modern | 419 | Ghiselli, Jean Marie (1500) | Lost 0-2 | -191519 |
| 8modern | 381 | Diotto, Alessandro (1529) | Lost 0-2 | -171502 |
| 9modern | 273 | Savina, Saverio (1435) | Lost 0-2 | -201482 |
| top | average opponent: 1614record: 1-6 | new rating: 1482 | ||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1573 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 396 | Marechal, David (1571) | Lost 0-2 | -181555 |
| 3modern | 398 | Vlaanderen, Bas (1548) | Lost 1-2 | -181537 |
| 4modern | 675 | Haller, Vincent (1438) | Won 2-0 | +161553 |
| 5modern | 598 | Gray, Steven (1515) | Lost 1-2 | -181535 |
| 6modern | 563 | Alonso, Daniel (1351) | Lost 0-2 | -221513 |
| 7modern | 493 | Joachim, David (1410) | Won 2-0 | +161529 |
| 8modern | 400 | Van Heel, Jeroen (1519) | Won 2-0 | +181547 |
| 9modern | 325 | Weytens, Thijs (1485) | Won 2-0 | +171564 |
| top | average opponent: 1480record: 4-4 | new rating: 1564 | ||
| Grand Prix Strasbourg 2013 (legacy) | starting rating: 1580 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 150 | Goddik, Hans Jacob (1620) | Lost 0-2 | -171563 |
| 3legacy | 257 | Carbillet, Christian (1501) | Lost 0-0 | -191544 |
| 4legacy | 533 | Kohl, Christian (1429) | Lost 1-2 | -211523 |
| 5legacy | 552 | Thiel, Jean-Claude (1366) | Lost 0-2 | -201503 |
| 6legacy | 541 | Galambos, Richard (1430) | Won 2-0 | +161519 |
| 7legacy | 451 | Noorlander, Mark (1473) | Won 2-1 | +171536 |
| 8legacy | 353 | Sauer, Tobias (1480) | Won 2-0 | +171553 |
| 9legacy | 271 | Laroumagne, Florian (1653) | Won 2-1 | +201573 |
| top | average opponent: 1494record: 4-4 | new rating: 1573 | ||
| Grand Prix Verona 2013 (GTC standard) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 119 | Ferraro, Costanzo (1500) | Won 2-0 | +171569 |
| 3standard | 164 | Silva, Andre (1435) | Lost 0-2 | -201549 |
| 4standard | 267 | Tomatis, Davide (1500) | Won 2-0 | +171566 |
| 5standard | 189 | Eliseev, Dmitrii (1481) | Won 2-0 | +171583 |
| 6standard | 113 | Bisonii, Luca (1511) | Won 2-0 | +161599 |
| 7standard | 30 | Ragionieri, Filippo (1484) | Lost 0-2 | -201579 |
| 8standard | 118 | Beucci, Matteo (1473) | Won 2-1 | +161595 |
| 9standard | 88 | Tassone, Maximilian (1747) | Lost 1-2 | -151580 |
| top | average opponent: 1516record: 5-3 | new rating: 1580 | ||
| Grand Prix Lyon 2012 (modern) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 615 | De Vecchi, Guido (1402) | Won 2-0 | +151565 |
| 2modern | 543 | Rostagno, Luca (1517) | Lost 0-2 | -191546 |
| 3modern | 720 | Lambert, Eric [FRA] (1413) | Lost 1-2 | -201526 |
| 4modern | 774 | Caballero, Juli (1480) | Lost 1-2 | -191507 |
| 5modern | 775 | Mauri, David (1463) | Won 2-1 | +171524 |
| 6modern | 714 | Bonami, Sebastien (1481) | Won 2-0 | +171541 |
| 7modern | 668 | Berchtold, Martin (1450) | Won 2-0 | +171558 |
| 8modern | 658 | Hoydonckx, Yves (1333) | Lost 1-2 | -221536 |
| 9modern | 649 | Mateo, Javier (1474) | Won 2-0 | +161552 |
| top | average opponent: 1446record: 5-4 | new rating: 1552 | ||
| Grand Prix Turin 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 49 | Somerville, Ken (1460) | Won 2-0 | +171517 |
| 2modern | 81 | Chaton Ostlie, Rasmus (1517) | Won 2-0 | +181535 |
| 3modern | 68 | Guidarelli, Alessio (1478) | Lost 1-2 | -191516 |
| 4modern | 169 | Holtzmann, Alexander (1443) | Lost 1-2 | -191497 |
| 5modern | 174 | Basoni, Federico (1515) | Won 2-0 | +181515 |
| 6modern | 128 | Bartolotti, Valerio (1515) | Won 2-0 | +181533 |
| 7modern | 73 | Bezruc, Vaclav (1536) | Won 2-0 | +181551 |
| 8modern | 69 | Ronco, Matteo (1460) | Won 2-0 | +171568 |
| 9modern | 31 | Hanke, Dustin (1567) | Lost 0-2 | -181550 |
| top | average opponent: 1499record: 6-3 | new rating: 1550 | ||