Stainbrook, Zach
Current rating: 1435
| Grand Prix Denver 2016 (KLD standard) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 158 | Bloodworth, Casey (1548) | Won 2-1 | +201488 |
| 2standard | 23 | Ricard, Matthew (1518) | Lost 0-2 | -181470 |
| 3standard | 422 | Capiola, Taylor (1499) | Lost 1-2 | -171453 |
| 4standard | 675 | Gannon, Chris (1487) | Lost 1-2 | -181435 |
| top | average opponent: 1513record: 1-3 | new rating: 1435 | ||
| Grand Prix Omaha 2015 (modern) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 240 | Conway, Emmyra (1589) | Lost 0-2 | -171468 |
| 2modern | 364 | Peters, Brian 2 (1421) | Won 2-1 | +181486 |
| 3modern | 257 | Zeug, Anthony (1437) | Lost 1-2 | -191467 |
| 4modern | 476 | Van Meter, Drew (1448) | Lost 1-2 | -191448 |
| 5modern | 454 | Switzer, Jesse (1464) | Won 2-0 | +191467 |
| 6modern | 349 | Richards, Gregory (1502) | Lost 0-2 | -181449 |
| 7modern | 327 | Sutherland, Andrew (1459) | Lost 0-2 | -181431 |
| 8modern | 276 | Washburn, Justin (1449) | Won 2-1 | +191450 |
| 9modern | 215 | Christophersen, William (1469) | Won 2-0 | +181468 |
| top | average opponent: 1471record: 4-5 | new rating: 1468 | ||
| Grand Prix Kansas City 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 105 | Upshaw, Raymond (1500) | Lost 0-2 | -181482 |
| 2modern | 348 | Weeks, James (1518) | Won 2-1 | +191501 |
| 3modern | 321 | Hahn, William (1540) | Lost 1-2 | -181483 |
| 4modern | 357 | DeAngelo, John (1587) | Won 2-1 | +201503 |
| 5modern | 289 | Gruver, William (1499) | Won 2-0 | +181521 |
| 6modern | 223 | Orr, Kevin (1518) | Lost 0-2 | -181503 |
| 7modern | 265 | Pirvu, Armand (1502) | Won 2-0 | +181521 |
| 8modern | 201 | Slingerland, Maxfield (1522) | Lost 0-2 | -181503 |
| 9modern | 184 | James, Michael (1471) | Lost 0-2 | -181485 |
| top | average opponent: 1517record: 4-5 | new rating: 1485 | ||