Barbee, Derek
Current rating: 1640
| Grand Prix Portland 2018 (modern) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 602 | Rider, Dominic (1418) | Won 2-1 | +151607 |
| 2modern | 13 | Oppegard, Jeffrey (1518) | Won 2-0 | +161623 |
| 3modern | 62 | Pace, Stanley (1554) | Won 2-1 | +171640 |
| 4modern | 132 | Milechman, Max (1876) | Lost 1-2 | -141626 |
| 5modern | 328 | Zabetian, Brian (1514) | Won 2-0 | +161642 |
| 6modern | 174 | Aalvik, Zakory (1566) | Won 2-0 | +171659 |
| 7modern | 91 | Stock, Kevin (1574) | Draw 1-1 | -21657 |
| 8modern | 82 | De Blois, Paul (1708) | Lost 1-2 | -171640 |
| top | average opponent: 1591record: 5-2-1 | new rating: 1640 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 448 | Kasch, Griffin (1500) | Won 2-0 | +171539 |
| 2standard | 154 | Peterson, Russell (1518) | Lost 0-2 | -181521 |
| 3standard | 358 | Russom Jr, James (1500) | Won 2-0 | +171538 |
| 4standard | 394 | Bauch, Chris (1454) | Won 2-1 | +171555 |
| 5standard | 218 | Burkhart, Joshuah (1552) | Won 2-1 | +181573 |
| 6standard | 85 | Cornfield, Ethan (1653) | Won 2-0 | +191592 |
| 7standard | 48 | Oratz, Josh (1610) | Won 2-1 | +191611 |
| 8standard | 56 | Burkhart, Corey (1964) | Lost 0-2 | -121599 |
| 9standard | 53 | Nieves, Jose (1578) | Lost 0-2 | -191580 |
| 10standard | 119 | Reardon, Thomas (1671) | Lost 1-2 | -161564 |
| 11standard | 165 | Borne, Austin (1541) | Won 2-0 | +181582 |
| 12standard | 124 | Cummings, Sam (1546) | Won 2-1 | +171599 |
| 13standard | 109 | Espada, Isaac (1611) | Won 2-1 | +181617 |
| 14standard | 74 | Ho, Eugene (1808) | Lost 0-2 | -141603 |
| 15standard | 95 | Pardee, Samuel (2043) | Lost 1-2 | -111592 |
| top | average opponent: 1637record: 9-6 | new rating: 1592 | ||
| Grand Prix Los Angeles 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 382 | Lau, Ling (1500) | Won 2-0 | +181518 |
| 2standard | 103 | Skallerup, Perhansa (1535) | Lost 1-2 | -181500 |
| 3standard | 669 | Scales, Zach (1543) | Won 2-0 | +191519 |
| 4standard | 487 | Wallace, David (1499) | Won 2-1 | +181537 |
| 5standard | 128 | Alonso, Jeovani (1567) | Lost 0-2 | -181519 |
| 6standard | 458 | Janasiewicz, Jason (1596) | Lost 0-2 | -161503 |
| 7standard | 433 | Nelson, Eric (1517) | Lost 1-2 | -181485 |
| 8standard | 375 | Wilkes, Johnathan (1481) | Won 2-0 | +181503 |
| 9standard | 277 | Ballardo, David (1540) | Won 2-0 | +191522 |
| top | average opponent: 1531record: 5-4 | new rating: 1522 | ||