Groner, Joshua
Current rating: 1390
Record: 15-25-4
| Grand Prix Richmond 2019 (ELD standard) | starting rating: 1374 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 15 | Cottrell, Michael (1500) | Draw 1-1 | +31377 |
| 2standard | 103 | Rose, Matthew (1500) | Lost 0-2 | -161361 |
| 3standard | 245 | Mobry, Kyle (1379) | Won 2-1 | +181379 |
| 4standard | 211 | Ward, Daymion (1486) | Draw 1-1 | +21381 |
| 5standard | 227 | Pasucal, Jeffrey (1481) | Won 2-0 | +201401 |
| 6standard | 181 | Ritter, Kyle (1610) | Won 2-0 | +221423 |
| 7standard | 134 | Wu, Yanfei (1481) | Lost 0-1 | -171406 |
| 8standard | 140 | Robertson, Patrick [USA] (1522) | Lost 0-2 | -161390 |
| top | average opponent: 1495record: 3-3-2 | new rating: 1390 | ||
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1318 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 262 | Popal, Wahid (1415) | Won 2-0 | +201338 |
| 2sealed | 135 | Orpilla, Leonard (1435) | Lost 0-0 | -161322 |
| 3sealed | 435 | Ekstrom, Michael (1500) | Won 2-1 | +211343 |
| 4sealed | 277 | Macejka, Larry (1563) | Lost 1-2 | -141329 |
| 5sealed | 297 | Booker, Joseph (1472) | Won 2-0 | +211350 |
| 6sealed | 178 | Rocus, Andy (1450) | Won 2-1 | +191369 |
| 7sealed | 125 | Yorgason, Jason (1549) | Won 2-0 | +221391 |
| 8sealed | 154 | Huckabone, Dylan (1480) | Lost 1-2 | -171374 |
| top | average opponent: 1483record: 5-3 | new rating: 1374 | ||
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1357 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 115 | Antrim, Michael (1734) | Lost 1-2 | -121345 |
| 2legacy | 254 | Hanna, Nick (1442) | Won 2-1 | +201365 |
| 3legacy | 297 | McCallum, Matthew (1547) | Lost 0-2 | -151350 |
| 4legacy | 399 | Knox, Connery (1468) | Lost 1-2 | -151335 |
| 5legacy | 406 | Gage, Joann (1436) | Lost 0-2 | -171318 |
| top | average opponent: 1525record: 1-4 | new rating: 1318 | ||
| Grand Prix New Jersey 2017 (std) (AER standard) | starting rating: 1381 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 163 | Whittington, Michael (1488) | Lost 0-2 | -161365 |
| 2standard | 529 | Kent, Nicholas (1481) | Lost 1-2 | -161349 |
| 3standard | 739 | Phillips, Jeffrey (1420) | Lost 1-2 | -171332 |
| 4standard | 776 | Fazio, Michael (1337) | Won 2-1 | +181350 |
| 5standard | 696 | Mazuroski, Stefan (1466) | Draw 1-1 | +21352 |
| 6standard | 666 | Pettengill, Stephen (1481) | Won 2-0 | +211373 |
| 7standard | 570 | Harris, Michael (1484) | Lost 1-2 | -161357 |
| top | average opponent: 1451record: 2-4-1 | new rating: 1357 | ||
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 242 | Martin, Jeremy (1500) | Won 2-0 | +181484 |
| 2standard | 94 | Achuff, Jay (1539) | Lost 1-2 | -171467 |
| 3standard | 371 | Tyler, Joshua (1501) | Lost 1-2 | -171450 |
| 4standard | 556 | Zastrow, Martin (1534) | Lost 0-2 | -171433 |
| 5standard | 605 | Bennett, Alfred (1486) | Lost 0-2 | -171416 |
| 6standard | 582 | Zitello, Sean (1414) | Lost 1-2 | -181398 |
| 7standard | 540 | Micklo, Alexander (1435) | Lost 0-2 | -171381 |
| top | average opponent: 1487record: 1-6 | new rating: 1381 | ||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 402 | Messa, Andrew (1540) | Lost 1-2 | -171483 |
| 2standard | 463 | Howard, Parker (1464) | Lost 0-1 | -191464 |
| 3standard | 653 | Winer, Sara (1412) | Won 2-1 | +171481 |
| 4standard | 721 | Ignozza, Rocco (1484) | Lost 0-2 | -181463 |
| 5standard | 633 | Ladyman, Korey (1463) | Won 2-0 | +181481 |
| 6standard | 552 | McCord, Alec (1483) | Won 2-0 | +181499 |
| 7standard | 396 | Kelly, Frank (1409) | Lost 0-2 | -191480 |
| 8standard | 362 | Duterte, Daniel (1690) | Draw 1-1 | +41484 |
| 9standard | 308 | Reynolds, John (1481) | Lost 0-2 | -181466 |
| top | average opponent: 1492record: 3-5-1 | new rating: 1466 | ||