Sosa, Jonas
Current rating: 1538
Record: 14-14
| Regional Championships Atlanta 2023 (pioneer) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 575 | Bishop, Troy (1478) | Won 2-1 | +191454 |
| 2pioneer | 171 | Newton, Eric (1517) | Won 2-0 | +191473 |
| 3pioneer | 141 | Braatz, Samuel (1697) | Lost 1-2 | -141459 |
| 4pioneer | 126 | Weck, Peter (1553) | Won 2-1 | +201479 |
| 5pioneer | 452 | Mazzei, Mitch (1528) | Lost 0-2 | -171462 |
| 6pioneer | 304 | Spruill, Kelvin (1519) | Won 2-0 | +191481 |
| 7pioneer | 202 | Ovington, Hunter (1522) | Lost 1-2 | -171464 |
| 8pioneer | 289 | Goodman, Simon (1516) | Won 2-1 | +191483 |
| 9pioneer | 153 | Dunbar, John (1561) | Won 2-1 | +191502 |
| 10pioneer | 133 | Sonnenberg-Rhim, Evan (1571) | Won 2-0 | +191521 |
| 11pioneer | 59 | Bonin, Brad (1847) | Won 2-0 | +241545 |
| 12pioneer | 29 | Mele, Nicholas (1776) | Won 2-1 | +221567 |
| 13pioneer | 24 | Handrahan, Jake (1648) | Lost 0-2 | -161551 |
| 14pioneer | 51 | Parson, Lukas (1859) | Lost 0-2 | -131538 |
| top | average opponent: 1614record: 9-5 | new rating: 1538 | ||
| Grand Prix Phoenix 2018 (modern) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 103 | Lee, Farand (1808) | Lost 0-2 | -121451 |
| 3modern | 514 | Utzinger, Benjamin (1551) | Won 2-1 | +201471 |
| 4modern | 379 | Vegso, Brian (1467) | Lost 0-2 | -181453 |
| 5modern | 453 | Gomez, Ben (1504) | Lost 1-2 | -181435 |
| top | average opponent: 1582record: 1-3 | new rating: 1435 | ||
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 55 | Kelley, Connor (1283) | Lost 1-2 | -221481 |
| 3sealed | 410 | Plett, Josh (1442) | Lost 1-2 | -181463 |
| top | average opponent: 1363record: 0-2 | new rating: 1463 | ||
| Grand Prix Denver 2016 (KLD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 263 | Nguyen, Robert (1390) | Lost 0-2 | -201480 |
| 3standard | 602 | Pancrazi, Roberto (1535) | Won 2-0 | +191499 |
| 4standard | 297 | Wolloch, Sam (1622) | Lost 0-2 | -161483 |
| 5standard | 546 | Jaramillo, Isaac (1501) | Lost 0-0 | -171466 |
| 6standard | 574 | Brillante, Rachel (1507) | Won 2-0 | +181484 |
| 7standard | 426 | Son, Steven (1502) | Won 2-1 | +191503 |
| 8standard | 343 | Kiyonaga, Adam (1492) | Lost 1-2 | -191484 |
| 9standard | 337 | Haraguchi, Yoshio (1538) | Won 2-0 | +191503 |
| top | average opponent: 1511record: 4-4 | new rating: 1503 | ||