Endress, Mark
Current rating: 1411
| Grand Prix London 2013 (GTC limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 591 | Requier, Sebastien (1426) | Lost 1-2 | -181444 |
| 2sealed | 580 | Rossi, Kevin (1624) | Lost 0-2 | -151429 |
| 3sealed | 781 | Omar, Muammar (1464) | Lost 0-2 | -181411 |
| top | average opponent: 1505record: 0-3 | new rating: 1411 | ||
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 167 | Radloff, Michael (1522) | Lost 0-2 | -171480 |
| 2standard | 316 | Barette, Randy (1500) | Lost 0-2 | -181462 |
| top | average opponent: 1511record: 0-2 | new rating: 1462 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 301 | Kayim-yanko, Korai (1500) | Won 2-0 | +181518 |
| 2sealed | 248 | Wirth, Ron (1483) | Lost 1-2 | -191499 |
| 3sealed | 274 | Fuson, Max (1499) | Won 2-0 | +181517 |
| 4sealed | 280 | Ludwigson, Matthew (1500) | Won 2-0 | +181535 |
| 5sealed | 213 | Paulson, Leif (1536) | Lost 1-2 | -181517 |
| 6sealed | 249 | Lourie, Raine (1427) | Lost 1-2 | -201497 |
| top | average opponent: 1491record: 3-3 | new rating: 1497 | ||