Holzworth, Michael
Current rating: 1580
Record: 16-13
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 256 | Cohen, Norman (1500) | Won 2-0 | +181562 |
| 2sealed | 213 | Markey, Ian (1518) | Won 2-1 | +171579 |
| 3sealed | 172 | Stack, Alexander R (1489) | Won 2-0 | +161595 |
| 4sealed | 113 | Lax, Ari (1930) | Lost 1-2 | -121583 |
| 5sealed | 204 | McMullen, Levon (1585) | Won 2-1 | +181601 |
| 6sealed | 103 | Broe, Greg (1615) | Lost 0-2 | -181583 |
| 7sealed | 212 | Reyes, Bejay (1450) | Won 2-1 | +161599 |
| 8sealed | 125 | Cottrill, Bob (1564) | Lost 0-2 | -191580 |
| top | average opponent: 1581record: 5-3 | new rating: 1580 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 262 | Fecek, David P (1560) | Won 2-0 | +191527 |
| 3sealed | 48 | Stiteler, Larry (1527) | Lost 0-2 | -181509 |
| 4sealed | 307 | Shelton, Johnathan (1533) | Lost 0-2 | -181491 |
| 5sealed | 362 | Vance, Benjamin e (1500) | Won 2-1 | +181509 |
| 6sealed | 244 | Foster, Tyler D (1517) | Won 2-1 | +181527 |
| 7sealed | 128 | Bourgault, Jesse O (1508) | Won 2-1 | +181545 |
| 8sealed | 145 | Colobong, John (1506) | Won 2-1 | +171562 |
| 9sealed | 85 | Copersito, Joey (1569) | Lost 1-2 | -181544 |
| top | average opponent: 1528record: 5-3 | new rating: 1544 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1456 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 167 | Chisolm, Steven (1517) | Lost 1-2 | -161440 |
| 3sealed | 193 | Nugent, Sarah (1500) | Won 2-1 | +191459 |
| 4sealed | 267 | Gates, Nathaniel (1563) | Won 2-1 | +201479 |
| 5sealed | 111 | Novak, Brian M (1482) | Won 2-1 | +181497 |
| 6sealed | 52 | Leavitt, David (1712) | Won 2-0 | +211518 |
| 7sealed | 42 | Prelle, Ryan C (1572) | Won 2-0 | +191537 |
| 8sealed | 41 | Sato, Rei (1740) | Lost 1-2 | -141523 |
| 9sealed | 83 | Pimm, Douglas (1665) | Lost 0-2 | -151508 |
| top | average opponent: 1594record: 5-3 | new rating: 1508 | ||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 80 | Chapin, Patrick (1948) | Lost 0-2 | -101490 |
| 5standard | 153 | Smith, Melmath (1536) | Won 2-0 | +191509 |
| 6standard | 64 | Defelice, Ronald (1552) | Lost 1-2 | -181491 |
| 7standard | 251 | Haupt, Roland (1524) | Lost 0-2 | -171474 |
| 8standard | 268 | Kanner, Zack (1506) | Lost 0-2 | -181456 |
| top | average opponent: 1613record: 1-4 | new rating: 1456 | ||