Gerbic, James
Current rating: 1518
Record: 26-28
| Grand Prix Detroit 2013 (modern) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 335 | Davis, Brad (1453) | Lost 1-2 | -191520 |
| 2modern | 456 | Carter, John (1408) | Won 0-0 | +161536 |
| 3modern | 431 | Paynter, Devon (1501) | Won 2-1 | +171553 |
| 4modern | 439 | Colletti, Tony (1618) | Lost 1-2 | -171536 |
| 5modern | 372 | McDonald, Daniel (1501) | Won 2-0 | +181554 |
| 6modern | 303 | Sagermann, Christian (1551) | Lost 1-2 | -181536 |
| 7modern | 384 | McArthur, Zachary (1501) | Won 0-0 | +171553 |
| 8modern | 309 | Koury, Anthony (1519) | Lost 0-2 | -191534 |
| 9modern | 271 | League, Charles (1612) | Lost 1-2 | -161518 |
| top | average opponent: 1518record: 4-5 | new rating: 1518 | ||
| Grand Prix Indianapolis 2013 (RTR limited) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 223 | Johnson, Michael (1443) | Won 2-0 | +171491 |
| 2sealed | 154 | Alcorn, Bryan (1704) | Lost 1-2 | -141477 |
| 3sealed | 262 | Weekley, Kevin (1447) | Won 2-0 | +181495 |
| 4sealed | 162 | Troiano, Francesco (1503) | Lost 1-2 | -181477 |
| 5sealed | 221 | Barrentine, Scott (1706) | Lost 1-2 | -141463 |
| 6sealed | 258 | Dube, Kirk (1486) | Won 2-1 | +181481 |
| 7sealed | 236 | Laux, Joshua (1457) | Won 2-0 | +181499 |
| 8sealed | 196 | Marquardt, David A (1533) | Won 2-0 | +191518 |
| 9sealed | 136 | Harrington, Bryan (1735) | Won 2-0 | +211539 |
| top | average opponent: 1557record: 6-3 | new rating: 1539 | ||
| Grand Prix Indianapolis 2012 (legacy) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 98 | Hiser, Andrew (1500) | Lost 0-2 | -171430 |
| 2legacy | 405 | Hess, Craig (1481) | Lost 0-2 | -171413 |
| 3legacy | 527 | Frazier, Kurtis (1394) | Won 2-0 | +181431 |
| 4legacy | 476 | Timson, Joe (1482) | Lost 0-2 | -171414 |
| 5legacy | 519 | Lennartz, Eric (1465) | Won 2-1 | +191433 |
| 6legacy | 425 | Laird, Nathan (1483) | Won 2-1 | +191452 |
| 7legacy | 293 | Fu, Wen (1500) | Won 2-1 | +181470 |
| 8legacy | 233 | Tinsley, Kevin (1556) | Won 2-0 | +201490 |
| 9legacy | 150 | Justice, Joshua (1598) | Lost 0-2 | -161474 |
| top | average opponent: 1495record: 5-4 | new rating: 1474 | ||
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 229 | Grandin, Nicholas (1500) | Lost 0-2 | -171438 |
| 2standard | 417 | McGregor, Trevor (1501) | Won 2-1 | +191457 |
| 3standard | 396 | DeStefano, Alexander (1500) | Lost 0-2 | -171440 |
| 4standard | 562 | O'Brien, Dusty (1479) | Won 2-0 | +191459 |
| 5standard | 435 | Ingram, Peter (1826) | Lost 1-2 | -121447 |
| top | average opponent: 1561record: 2-3 | new rating: 1447 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1406 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 176 | Abbott, Jeff (1500) | Lost 0-2 | -161390 |
| 2legacy | 218 | Murray, Jeffrey (1483) | Won 2-1 | +201410 |
| 3legacy | 138 | Frazier, Kurtis (1500) | Won 2-0 | +191429 |
| 4legacy | 131 | Rodriguez, Juan C (1584) | Lost 0-2 | -151414 |
| 5legacy | 210 | McCune, Colin (1500) | Won 2-0 | +201434 |
| 6legacy | 141 | Shimko, Steve S (1486) | Won 2-0 | +191453 |
| 7legacy | 62 | Corvese, Harry (1527) | Won 2-1 | +191472 |
| 8legacy | 80 | Burkman, Robert M (1555) | Lost 0-2 | -171455 |
| top | average opponent: 1517record: 5-3 | new rating: 1455 | ||
| Grand Prix Detroit 2005 (BOK limited) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 137 | May, Ethan (1500) | Lost 0-2 | -161383 |
| 2sealed | 136 | Francis, James (1477) | Lost 0-2 | -161367 |
| 3sealed | 206 | Hawley, Nathan (1464) | Won 2-0 | +191386 |
| 4sealed | 166 | Silver, Robert (1483) | Won 2-0 | +201406 |
| top | average opponent: 1481record: 2-2 | new rating: 1406 | ||
| Grand Prix Columbus 2004 (DST limited) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 220 | Smith, Dan (1522) | Lost 0-2 | -161398 |
| 2sealed | 312 | Tam, Wai (1400) | Won 2-1 | +181416 |
| 3sealed | 294 | Karrigan, Brian (1483) | Lost 0-2 | -171399 |
| top | average opponent: 1468record: 1-2 | new rating: 1399 | ||
| Grand Prix Detroit 2003 (Onslaught block) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 137 | Urich, Richard (1500) | Lost 0-2 | -171429 |
| 2block | 163 | Huang, Don (1482) | Lost 0-2 | -171412 |
| 3block | 238 | Kelley, Chris (1464) | Won 2-1 | +191431 |
| 4block | 212 | Pena, Jason (1482) | Lost 1-2 | -171414 |
| top | average opponent: 1482record: 1-3 | new rating: 1414 | ||
| Grand Prix Cleveland 2002 (Odyssey block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 179 | Moskovich, Valentin (1502) | Lost 0-2 | -181482 |
| 2block | 192 | Svejkovsky, Todd (1483) | Lost 0-2 | -181464 |
| 3block | 242 | Kurtzman, Mike (1464) | Lost 0-2 | -181446 |
| top | average opponent: 1483record: 0-3 | new rating: 1446 | ||