Powell, Antonio
Current rating: 1629
Record: 29-22-2 (GP) / 4-3-1 (professional)
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 91 | Malone, Michael (1519) | Won 2-0 | +171617 |
| 3sealed | 29 | Conyers, Melvin (1481) | Won 2-0 | +151632 |
| 4sealed | 29 | Olson, Lance (1491) | Lost 0-2 | -201612 |
| 5sealed | 140 | Mowry, Nicholas R (1543) | Won 2-1 | +161628 |
| 6sealed | 32 | Gerrish, Colby (1500) | Won 2-0 | +161644 |
| 7sealed | 45 | Stokinger, Andrew (1809) | Lost 1-2 | -151629 |
| 8sealed | 100 | Guardiola, Alexander (1603) | Won 2-0 | +181647 |
| 9sealed | 70 | Havlovic, Bob (1692) | Lost 0-2 | -181629 |
| top | average opponent: 1580record: 5-3 | new rating: 1629 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 28 | Najewicz, Derek R (1500) | Won 2-0 | +161626 |
| 2legacy | 93 | Galonski, Adam W (1517) | Won 2-1 | +161642 |
| 3legacy | 34 | Williams, David A (1653) | Lost 0-2 | -181624 |
| 4legacy | 170 | Grendell, James (1501) | Won 2-1 | +161640 |
| 5legacy | 130 | Henry, Mason (1536) | Lost 0-2 | -201620 |
| 6legacy | 142 | Sjostedt, Peter J (1523) | Lost 0-2 | -201600 |
| top | average opponent: 1538record: 3-3 | new rating: 1600 | ||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1652 | |||
| round | table | opponent (rating) | result | Δrating |
| 4legacy | 97 | Smelski, Geoffrey T (1537) | Won 2-1 | +161668 |
| 5legacy | 20 | Glackin, Ryan (1602) | Lost 0-2 | -191649 |
| 6legacy | 80 | Smith, Michael (1553) | Lost 1-2 | -201629 |
| 7legacy | 108 | Shelley, Brandon C (1540) | Lost 0-2 | -191610 |
| top | average opponent: 1558record: 1-3 | new rating: 1610 | ||
| Pro Tour Houston 2002 (extended) | starting rating: 1617 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 70 | Terasawa, Kazuya (1678) | Lost 0-2 | -171600 |
| 2extended | 170 | Haim, Christophe (1901) | Draw 1-1 | +51605 |
| 3extended | 136 | Remie, Jeroen (1971) | Won 2-0 | +241629 |
| 4extended | 89 | Tan, Iwan (1775) | Won 2-1 | +211650 |
| 5extended | 55 | Walls, Gabe (1667) | Lost 1-2 | -181632 |
| 6extended | 90 | Christensen, Allan (1786) | Won 2-0 | +211653 |
| 7extended | 60 | Lebedowicz, Osyp (1836) | Won 2-0 | +211674 |
| 8extended | 48 | Braun, Matthias (1447) | Lost 0-2 | -221652 |
| top | average opponent: 1758record: 4-3-1 | new rating: 1652 | ||
| Grand Prix Philadelphia 2002 (ONS rochester) | starting rating: 1608 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 166 | Muraca, Nick (1500) | Lost 0-2 | -201588 |
| 2sealed | 171 | McGloin, Daniel (1482) | Won 2-0 | +161604 |
| 3sealed | 206 | Weaver, Chad (1498) | Won 2-0 | +161620 |
| 4sealed | 130 | Ricciardi, Michael (1537) | Lost 0-2 | -201600 |
| 5sealed | 151 | Hilburg, David (1499) | Won 2-0 | +171617 |
| top | average opponent: 1503record: 3-2 | new rating: 1617 | ||
| Grand Prix Cleveland 2002 (Odyssey block) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 99 | Sprague, Tim (1518) | Won 2-0 | +181574 |
| 3block | 79 | Anderson, Dan (1488) | Draw 1-1 | -21572 |
| 4block | 76 | Barron, Alexander (1518) | Won 2-1 | +171589 |
| 5block | 38 | Bell, Michael (1502) | Won 2-0 | +161605 |
| 6block | 17 | Carter, Adrian (1580) | Draw 1-1 | 01605 |
| 7block | 46 | Bowser, Jason (1554) | Won 2-0 | +171622 |
| 8block | 26 | Kastle, Darwin (1830) | Lost 0-2 | -141608 |
| top | average opponent: 1570record: 4-1-2 | new rating: 1608 | ||
| Grand Prix Milwaukee 2002 (TOR standard) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 18 | Stokinger, Andrew (1804) | Lost 0-2 | -131520 |
| 3standard | 210 | Powers, Michael (1502) | Won 2-1 | +181538 |
| 4standard | 204 | Haggerty, Matt (1502) | Won 2-0 | +171555 |
| 5standard | 86 | Berkley, Tim (1536) | Won 2-1 | +181573 |
| 6standard | 95 | Gurwitz, Zev (1655) | Lost 0-2 | -171556 |
| top | average opponent: 1600record: 3-2 | new rating: 1556 | ||
| Grand Prix Detroit 2001 (PLS limited) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 22 | Wilson, Mike W (1500) | Lost 1-2 | -191535 |
| 2sealed | 209 | Henderson, Joseph J (1482) | Won 2-1 | +171552 |
| 3sealed | 177 | Rheaume, Conrad (1500) | Lost 0-2 | -191533 |
| top | average opponent: 1494record: 1-2 | new rating: 1533 | ||
| Grand Prix Philadelphia 2000 (extended) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 73 | D'Angelo, Stephen (1500) | Won 0-0 | +181535 |
| 2extended | 121 | Mitchell, RJ (1518) | Lost 0-0 | -191516 |
| 3extended | 202 | Rychtar, Edward (1500) | Won 0-0 | +181534 |
| 4extended | 160 | Walker, Rory (1542) | Won 0-0 | +181552 |
| 5extended | 104 | Weber, Joe (1713) | Lost 0-0 | -151537 |
| 6extended | 121 | Leidner, Ronald (1518) | Won 0-0 | +181555 |
| 7extended | 71 | Hill, Stanley (1537) | Won 0-0 | +171572 |
| 8extended | 65 | Russell, Kenneth (1560) | Lost 0-0 | -181554 |
| top | average opponent: 1548record: 5-3 | new rating: 1554 | ||
| Grand Prix Memphis 1999 (Urza's block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 56 | Hayes, Tim (1500) | Lost 0-0 | -181482 |
| 2block | 139 | McFarland, Carey (1482) | Won 0-0 | +181500 |
| 3block | 85 | Donovan, Michael (1499) | Won 0-0 | +181518 |
| 4block | 76 | Harrison, Eric (1518) | Won 0-0 | +181536 |
| 5block | 32 | Carpenter, Ryan (1524) | Lost 0-0 | -181518 |
| 6block | 81 | McConnell, Alex (1470) | Won 0-0 | +171535 |
| 7block | 68 | Woods, Chris (1535) | Lost 0-0 | -181517 |
| top | average opponent: 1504record: 4-3 | new rating: 1517 | ||