Tsukuno, David
Current rating: 1568
Record: 19-15-3
| Grand Prix Chicago 2012 (modern) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 37 | Parrish, Jason (1432) | Lost 1-2 | -201551 |
| 2modern | 329 | Benson, Jordan (1637) | Won 2-1 | +191570 |
| 3modern | 292 | Trasky, Kevin R (1500) | Lost 1-2 | -191551 |
| 4modern | 383 | Elick, Jared (1468) | Won 2-1 | +171568 |
| 5modern | 425 | Lequia, Steven (1579) | Won 2-1 | +181586 |
| 6modern | 207 | Tenjum, Andrew (1569) | Lost 0-2 | -181568 |
| top | average opponent: 1531record: 3-3 | new rating: 1568 | ||
| Grand Prix Indianapolis 2012 (legacy) | starting rating: 1579 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 292 | Shafer, Wesley (1500) | Lost 0-2 | -191560 |
| 3legacy | 420 | Laird, Nathan (1501) | Won 2-0 | +171577 |
| 4legacy | 212 | Akeley, Peter (1543) | Lost 0-2 | -191558 |
| 5legacy | 313 | Finnegan, Michael (1501) | Won 2-0 | +171575 |
| 6legacy | 355 | Applegate, David (1510) | Lost 1-2 | -191556 |
| 7legacy | 318 | Hall, Christopher L (1484) | Won 2-0 | +171573 |
| 8legacy | 246 | Mayes, Jason (1563) | Won 2-1 | +171590 |
| 9legacy | 186 | Horn, Brad (1542) | Lost 0-2 | -191571 |
| top | average opponent: 1518record: 4-4 | new rating: 1571 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 120 | Leali, Nick (1518) | Won 2-0 | +191522 |
| 3legacy | 77 | Havlovic, Bob (1602) | Lost 0-2 | -171505 |
| 4legacy | 94 | Hughes, Scott (1535) | Won 2-0 | +191524 |
| 5legacy | 104 | Kuprewicz, Samuel (1537) | Won 2-0 | +181542 |
| 6legacy | 25 | Wauer, Carl (1676) | Draw 1-1 | +21544 |
| 7legacy | 53 | Steele, Akil (1561) | Won 2-0 | +191563 |
| 8legacy | 31 | Antrim, Michael (1525) | Won 1-0 | +171580 |
| 9legacy | 20 | Jordan, Jason (1534) | Draw 1-1 | -11579 |
| top | average opponent: 1561record: 5-1-2 | new rating: 1579 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 386 | Przybyski, Kraig A (1500) | Won 2-1 | +191482 |
| 2legacy | 34 | Meylan, Nicolas (1479) | Lost 0-2 | -181464 |
| 3legacy | 279 | Brenizer, Craig D (1382) | Won 2-0 | +161480 |
| 4legacy | 185 | Gonzales, Ricardo (1517) | Won 2-0 | +191499 |
| 5legacy | 232 | Drebsky, David (1580) | Lost 1-2 | -171482 |
| 6legacy | 228 | Erickson, Jens (1637) | Won 2-1 | +211503 |
| 7legacy | 131 | Jabczynski, Mike J (1520) | Draw 1-1 | 01503 |
| top | average opponent: 1516record: 4-2-1 | new rating: 1503 | ||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 199 | Harris, Rocky (1464) | Won 2-0 | +171517 |
| 2legacy | 37 | Dorgan, Kyle (1500) | Lost 0-2 | -181499 |
| 3legacy | 313 | Lynn, Michael (1499) | Won 2-0 | +181517 |
| 4legacy | 220 | Williams, Erik B (1533) | Lost 1-2 | -181499 |
| 5legacy | 220 | Haines, Joseph (1498) | Lost 1-2 | -181481 |
| 6legacy | 315 | Smallwood, Erik (1465) | Won 2-0 | +181499 |
| 7legacy | 206 | Pierson, Justin M (1500) | Lost 0-2 | -181481 |
| 8legacy | 211 | Ryan, Joseph S (1482) | Lost 1-2 | -181463 |
| top | average opponent: 1493record: 3-5 | new rating: 1463 | ||