Drennen, Mark
Current rating: 1530
Record: 8-6-3
| Grand Prix Orlando 2018 (M19 standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 41 | Walker, Bryan (1394) | Lost 1-2 | -201497 |
| 2standard | 293 | Kelley, Kevin (1483) | Lost 1-2 | -191478 |
| 3standard | 431 | Falk, Tyler (1463) | Lost 1-2 | -181460 |
| 4standard | 36 | Palmer, Victoria (1446) | Won 2-0 | +181478 |
| 5standard | 416 | Cason, Eli (1396) | Won 2-0 | +161494 |
| 6standard | 322 | Bates, Timothy (1487) | Won 2-1 | +181512 |
| 7standard | 256 | Anglero, Justin (1507) | Won 2-0 | +181530 |
| 8standard | 161 | Matheny, Michael (1542) | Draw 1-1 | 01530 |
| average opponent: 1465record: 4-3-1 | new rating: 1530 | |||
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 856 | Blake, Amber (1412) | Lost 1-2 | -201480 |
| 2sealed | 989 | DeAses, Andrew (1482) | Draw 1-1 | 01480 |
| 3sealed | 1067 | Tavarez, Thomas (1465) | Won 2-0 | +181498 |
| 4sealed | 966 | Jordi, Carlos (1450) | Won 2-0 | +171515 |
| 5sealed | 842 | Goanos, Johnathan (1536) | Draw 1-1 | +11516 |
| 6sealed | 926 | Zheng, Zhen (1453) | Lost 0-2 | -191497 |
| 7sealed | 961 | Morell, Gabriel (1501) | Lost 1-2 | -181479 |
| 8sealed | 920 | Fund, Ian (1553) | Won 2-0 | +191498 |
| 9sealed | 855 | Patell, Cyrus (1541) | Won 2-0 | +191517 |
| average opponent: 1488record: 4-3-2 | new rating: 1517 | |||