Nenna, Juan
Current rating: 1553
| Grand Prix Lille 2018 (GRN standard) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 2 | Fuchs, Alexander (1412) | Lost 1-2 | -201522 |
| 2standard | 378 | BRUANT, Valentin (1481) | Won 2-1 | +171539 |
| 3standard | 477 | Ouvry, Emilien (1379) | Lost 0-2 | -211518 |
| 4standard | 607 | Van Gelderen, Daniel (1527) | Won 2-1 | +181536 |
| 5standard | 414 | Martinez De, Alex (1491) | Lost 0-2 | -181518 |
| 6standard | 476 | Utermark, Janno (1525) | Draw 1-1 | 01518 |
| 7standard | 446 | Severn, Anthony (1480) | Won 2-1 | +171535 |
| 8standard | 367 | Leduc, Adrien (1511) | Won 2-0 | +181553 |
| top | average opponent: 1476record: 4-3-1 | new rating: 1553 | ||
| Grand Prix Lyon 2018 (modern) | starting rating: 1549 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 75 | Havenith, Sven (1454) | Lost 0-2 | -191530 |
| 2modern | 717 | Hirsch, Tomasz (1487) | Won 2-1 | +171547 |
| 3modern | 563 | Doridot, Yoan (1513) | Won 2-1 | +171564 |
| 4modern | 521 | Roman, Frederic (1426) | Won 2-0 | +161580 |
| 5modern | 353 | De Paepe, Emiel (1538) | Lost 1-2 | -191561 |
| 6modern | 588 | Amrani, Omar (1612) | Lost 0-2 | -171544 |
| 7modern | 484 | Nieratschker, Martin (1498) | Won 2-1 | +171561 |
| 8modern | 351 | Lara Palacios, Miguel Antonio (1515) | Lost 1-2 | -191542 |
| top | average opponent: 1505record: 4-4 | new rating: 1542 | ||
| Grand Prix Amsterdam 2017 (AKH standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 251 | Geurts, Simon (1493) | Lost 1-2 | -181482 |
| 2standard | 294 | Liers, Carsten (1481) | Won 2-0 | +181500 |
| 3standard | 415 | Violin, Michele (1446) | Draw 1-1 | -11499 |
| 4standard | 414 | van Velzen, Erwin (1313) | Won 2-0 | +151514 |
| 5standard | 295 | Berteaux, Julien (1606) | Won 2-1 | +191533 |
| 6standard | 187 | Schrenk, Adrian Johann (1533) | Won 2-0 | +181551 |
| 7standard | 116 | Mazza, Simone (1542) | Won 2-0 | +181569 |
| 8standard | 65 | Lee, Nai Jai (1628) | Lost 0-2 | -171552 |
| 9standard | 131 | Achim, Cosmin (1408) | Draw 1-1 | -31549 |
| top | average opponent: 1494record: 5-2-2 | new rating: 1549 | ||