Buonadonna, Mason
Current rating: 1584
Record: 39-38-3
| Regional Championships Atlanta 2023 (pioneer) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 473 | Robertson, Wesley (1500) | Won 2-1 | +171552 |
| 2pioneer | 295 | Henriques, Richard (1518) | Lost 1-2 | -191533 |
| 3pioneer | 249 | Farley, Matthew (1520) | Won 2-0 | +181551 |
| 4pioneer | 165 | Taylor, Dustin (1888) | Won 2-0 | +241575 |
| 5pioneer | 97 | McGarry, Quinn (1478) | Won 2-1 | +161591 |
| 6pioneer | 31 | Hicks, Brendan (1474) | Won 2-0 | +161607 |
| 7pioneer | 19 | Counts, Ryan (1644) | Draw 1-1 | +11608 |
| 8pioneer | 41 | Aflatooni, Aiden (1683) | Won 2-1 | +191627 |
| 9pioneer | 21 | Foster, Dominic (1607) | Lost 1-2 | -181609 |
| 10pioneer | 56 | Daniels, Dillon (1591) | Lost 1-2 | -181591 |
| 11pioneer | 105 | Sheldon, Donald (1805) | Won 2-1 | +211612 |
| 12pioneer | 72 | Mahr, Philip (1775) | Lost 0-2 | -151597 |
| 13pioneer | 90 | Wolbers, Andrew (1862) | Lost 0-2 | -131584 |
| top | average opponent: 1642record: 7-5-1 | new rating: 1584 | ||
| Regional Championships Dallas 2023 (pioneer) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 475 | Ahmed, Konan (1715) | Won 2-0 | +211556 |
| 2pioneer | 278 | Kinsey, David (1544) | Lost 0-2 | -181538 |
| 3pioneer | 267 | Kaminski, Stephen (1733) | Lost 1-2 | -141524 |
| 4pioneer | 381 | Yu, Jarvis (1871) | Lost 0-2 | -121512 |
| 5pioneer | 448 | Carr, Malcolm (1697) | Won 2-1 | +211533 |
| 6pioneer | 312 | Blankenship, Kyle (1715) | Won 2-0 | +211554 |
| 7pioneer | 344 | Wachtell, Zachary (1505) | Lost 1-2 | -181536 |
| 8pioneer | 285 | Moskal, James (1546) | Lost 0-2 | -181518 |
| 9pioneer | 248 | Cooper, Brandon (1465) | Won 2-0 | +171535 |
| top | average opponent: 1644record: 4-5 | new rating: 1535 | ||
| Regional Championships Atlanta 2022 (pioneer) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 1155 | Stevens, Brad (1500) | Lost 1-2 | -191517 |
| 2pioneer | 1334 | Patterson, Jakob (1421) | Lost 0-2 | -201497 |
| 3pioneer | 1431 | Pulliam, Will (1486) | Won 2-1 | +181515 |
| 4pioneer | 1334 | Watson, Trey (1491) | Won 2-0 | +181533 |
| 5pioneer | 1174 | Goanos, Johnathan (1562) | Won 2-1 | +181551 |
| 6pioneer | 1098 | Smith, Zachary (1566) | Lost 0-2 | -171534 |
| 7pioneer | 1275 | Chaney, Nolan (1603) | Won 2-1 | +191553 |
| 8pioneer | 1114 | Larsen, Luke (1568) | Lost 0-2 | -181535 |
| top | average opponent: 1525record: 4-4 | new rating: 1535 | ||
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 244 | Hale, James (1372) | Won 2-0 | +151549 |
| 2sealed | 189 | Shrader, Lance (1688) | Lost 0-0 | -151534 |
| 3sealed | 451 | Smith, Alex (1733) | Won 2-1 | +211555 |
| 4sealed | 365 | Liu, Sho (1518) | Won 2-0 | +181573 |
| 5sealed | 102 | Martinez, Cameron (1541) | Lost 0-2 | -191554 |
| 6sealed | 309 | Ogle, Stephen (1532) | Lost 0-2 | -181536 |
| top | average opponent: 1564record: 3-3 | new rating: 1536 | ||
| Grand Prix New Jersey 2017 (lim) (XLN limited) | starting rating: 1545 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 150 | Salvador Arnal, Guillem (1701) | Won 2-1 | +201565 |
| 3sealed | 155 | Colligan, Aidan (1522) | Lost 1-2 | -181547 |
| 4sealed | 312 | Dowling, Michael (1602) | Won 2-1 | +191566 |
| 5sealed | 85 | Stewart, Joshua (1702) | Lost 0-2 | -161550 |
| 6sealed | 265 | Edelman, Charles (1668) | Lost 0-2 | -161534 |
| top | average opponent: 1639record: 2-3 | new rating: 1534 | ||
| Grand Prix Minneapolis 2017 (HOU standard) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 70 | Waters, Rich (1478) | Lost 1-2 | -191519 |
| 3standard | 339 | Woodward, Scott (1570) | Won 2-1 | +191538 |
| 4standard | 322 | McClenathan, Sean (1763) | Lost 0-2 | -141524 |
| 5standard | 407 | Manka-Cooper, Dylen (1501) | Won 2-0 | +181542 |
| 6standard | 313 | Mohns, Brett (1626) | Lost 0-2 | -171525 |
| 7standard | 288 | Echevarria, Tyler (1595) | Won 2-0 | +201545 |
| 8standard | 174 | Edstrom, Timothy (1458) | Won 2-0 | +161561 |
| 9standard | 169 | Fagan, Christian (1653) | Lost 1-2 | -161545 |
| top | average opponent: 1581record: 4-4 | new rating: 1545 | ||
| Grand Prix Louisville 2017 (legacy) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 527 | Sutton, Donald (1469) | Lost 1-2 | -191503 |
| 2legacy | 707 | Bates, Deryck (1406) | Won 2-1 | +161519 |
| 3legacy | 678 | Wilson, Benjamin (1576) | Lost 1-2 | -171502 |
| 4legacy | 969 | Watts, Lee (1484) | Lost 1-2 | -181484 |
| 5legacy | 919 | Burgener, Tim (1504) | Won 2-0 | +181502 |
| 6legacy | 859 | Klopf, Billy (1481) | Won 2-1 | +181520 |
| 7legacy | 765 | Makowsky, Christopher (1498) | Won 2-1 | +181538 |
| 8legacy | 627 | Cotter, Andrew (1642) | Won 2-1 | +191557 |
| 9legacy | 531 | Szylman, Dariusz (1499) | Lost 0-2 | -191538 |
| top | average opponent: 1507record: 5-4 | new rating: 1538 | ||
| Grand Prix Milwaukee 2016 (KLD limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 83 | Mangum, James (1717) | Draw 1-1 | +31523 |
| 2sealed | 306 | Glantzman, Joshua (1743) | Won 2-1 | +221545 |
| 3sealed | 278 | Guo, Justin (1517) | Won 2-0 | +181563 |
| 4sealed | 157 | Short, Gregory (1484) | Lost 0-2 | -201543 |
| 5sealed | 276 | Baker, Trevor (1539) | Won 2-0 | +181561 |
| 6sealed | 184 | Albrecht, Andrew (1538) | Lost 1-2 | -181543 |
| 7sealed | 275 | Thompson, Alexander (1376) | Lost 0-2 | -211522 |
| top | average opponent: 1559record: 3-3-1 | new rating: 1522 | ||
| Grand Prix Omaha 2015 (modern) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 234 | Downs, Mikaela (1618) | Lost 1-2 | -171512 |
| 3modern | 269 | Colon, Winning (1500) | Won 2-0 | +181530 |
| 4modern | 189 | Orange, Gregory (1998) | Lost 0-2 | -101520 |
| 5modern | 305 | Bush, Jeremy (1513) | Draw 1-1 | 01520 |
| top | average opponent: 1657record: 1-2-1 | new rating: 1520 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 164 | Manzano, Ox (1582) | Won 2-0 | +191519 |
| 4modern | 121 | Ma, Jonathan (1630) | Lost 1-2 | -151504 |
| 5modern | 226 | Wood, Jeremiah D (1556) | Lost 0-2 | -181486 |
| 6modern | 396 | Hannebohn, George (1519) | Won 2-1 | +191505 |
| 7modern | 205 | Tibbetts, Fraser (1534) | Won 2-1 | +191524 |
| 8modern | 207 | Kuhlow, Chris (1655) | Won 2-1 | +201544 |
| 9modern | 95 | McCluskie, Ted (1688) | Won 2-0 | +211565 |
| 10modern | 62 | Goldfarb, David (1556) | Lost 0-2 | -191546 |
| 11modern | 80 | Desotelle, Dwight (1539) | Won 2-1 | +181564 |
| 12modern | 46 | Hilty, Jacob (1563) | Lost 0-2 | -181546 |
| 13modern | 76 | Zhang, Peter (1571) | Lost 1-2 | -171529 |
| top | average opponent: 1581record: 6-5 | new rating: 1529 | ||