Birku, Samson
Current rating: 1252
Record: 10-28
| Grand Prix Columbus 2016 (legacy) | starting rating: 1327 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 434 | Mullen, Nathan (1422) | Lost 1-2 | -161311 |
| 2legacy | 570 | Ward, Christopher (1443) | Lost 1-2 | -161295 |
| 3legacy | 799 | Tam, Wayne (1497) | Lost 1-2 | -141281 |
| 4legacy | 831 | Paolini, Michael (1507) | Lost 1-2 | -141267 |
| 5legacy | 826 | Chambers, Devin (1466) | Lost 0-2 | -151252 |
| top | average opponent: 1467record: 0-5 | new rating: 1252 | ||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1337 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 378 | Bilobrov, Anton (1500) | Won 2-0 | +211358 |
| 2legacy | 271 | Brewe, Garth (1538) | Won 2-0 | +211379 |
| 3legacy | 14 | Zheng, Junyuan (1570) | Won 2-1 | +211400 |
| 4legacy | 118 | Cheon, Paul (1932) | Lost 0-2 | -91391 |
| 5legacy | 288 | Aylward, Robert (1469) | Lost 0-2 | -161375 |
| 6legacy | 448 | Thompson, Kevin (1461) | Lost 0-2 | -171358 |
| 7legacy | 524 | Downey, Shane (1480) | Lost 0-2 | -161342 |
| 8legacy | 401 | Lickteig, Nathan (1484) | Lost 1-2 | -151327 |
| top | average opponent: 1554record: 3-5 | new rating: 1327 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1349 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 1450 | Bernett, Evan (1482) | Won 1-0 | +211370 |
| 2legacy | 1713 | Schick, Mike (1470) | Lost 0-2 | -161354 |
| 3legacy | 1868 | Reedy, Phelan (1519) | Won 2-1 | +211375 |
| 4legacy | 1764 | Severa, Matt (1819) | Lost 1-2 | -111364 |
| 5legacy | 1838 | Brown, Harrison (1515) | Won 2-1 | +211385 |
| 6legacy | 1758 | Korb, Silas (1450) | Lost 1-2 | -171368 |
| 7legacy | 1744 | Nguyen, Michael (1491) | Lost 0-2 | -161352 |
| 8legacy | 1665 | McGlaughlin, Kevin (1483) | Lost 0-2 | -151337 |
| top | average opponent: 1529record: 3-5 | new rating: 1337 | ||
| Grand Prix Montreal 2014 (BNG limited) | starting rating: 1381 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 83 | Angers Ruest, Marc (1500) | Lost 0-2 | -161365 |
| 2sealed | 658 | Cossette-Pacheco, Alexandre (1484) | Lost 0-2 | -161349 |
| top | average opponent: 1492record: 0-2 | new rating: 1349 | ||
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 45 | Cook, Nathon (1500) | Lost 0-2 | -161415 |
| 2sealed | 477 | Yassa, Mike (1480) | Lost 0-2 | -171398 |
| 3sealed | 639 | Forget, Alexandre (1470) | Lost 0-2 | -171381 |
| top | average opponent: 1484record: 0-3 | new rating: 1381 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 17 | Holls, James (1500) | Lost 1-2 | -181451 |
| 2modern | 405 | Gutierrez, Rob (1353) | Lost 0-0 | -201431 |
| top | average opponent: 1426record: 0-2 | new rating: 1431 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1396 | Mitchell, Branson (1491) | Lost 0-2 | -171447 |
| 2sealed | 1463 | Nicastro, Vincent (1482) | Lost 0-2 | -181429 |
| 4sealed | 1440 | Nguyen, Edward (1541) | Lost 1-2 | -161413 |
| 5sealed | 1208 | Onuma, Hayato (1297) | Won 2-0 | +161429 |
| 6sealed | 994 | Nguyen, Viet 2 (1481) | Won 2-0 | +191448 |
| 7sealed | 804 | Scotta, Lucas (1500) | Won 2-0 | +191467 |
| 8sealed | 655 | Wilder, Michael (1492) | Lost 1-2 | -181449 |
| 9sealed | 536 | Glaser, Gary (1512) | Won 2-0 | +201469 |
| top | average opponent: 1474record: 4-4 | new rating: 1469 | ||
| Grand Prix Toronto 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 290 | Maedler, Marcus (1500) | Lost 1-2 | -181482 |
| 2modern | 258 | Williams, Matt S (1482) | Lost 0-2 | -181464 |
| top | average opponent: 1491record: 0-2 | new rating: 1464 | ||