Harris, Geoffrey
Current rating: 1553
Record: 18-17
| Grand Prix Kuala Lumpur 2016 (KLD standard) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 85 | Tan, Su Teck (1422) | Won 2-1 | +151571 |
| 3standard | 88 | Tan, Joshua (1536) | Lost 0-0 | -181553 |
| 4standard | 193 | Ye, Alan (1517) | Won 2-0 | +171570 |
| 5standard | 75 | Leong, Felix (1794) | Won 2-0 | +221592 |
| 6standard | 69 | Pitianusorn, Bovorn (1389) | Lost 0-2 | -221570 |
| 7standard | 76 | Lau, Zhao Zhi (1705) | Lost 1-2 | -151555 |
| 8standard | 194 | Mohd Zaki, Mohd Nazrul Hafeez (1490) | Lost 1-2 | -191536 |
| 9standard | 182 | Cooke, Jonathan (1506) | Won 2-0 | +171553 |
| top | average opponent: 1545record: 4-4 | new rating: 1553 | ||
| Grand Prix Melbourne 2016 (modern) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 273 | Hua, Ye (1500) | Lost 0-2 | -191542 |
| 2modern | 315 | Fireng, Kyle (1482) | Won 2-1 | +171559 |
| 3modern | 399 | Junor, Stewart (1501) | Lost 1-2 | -191540 |
| 4modern | 463 | Keevers, Martin (1463) | Lost 0-2 | -201520 |
| 5modern | 473 | Hao, Ning (1446) | Won 2-0 | +171537 |
| 6modern | 371 | Feng, Tony (1610) | Won 2-1 | +191556 |
| 7modern | 282 | Barron, Robert (1466) | Lost 0-2 | -191537 |
| 8modern | 314 | Wang, Tao-Yi (1599) | Won 2-1 | +191556 |
| top | average opponent: 1508record: 4-4 | new rating: 1556 | ||
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 387 | Puszet, Jarron (1630) | Won 2-1 | +201515 |
| 2sealed | 47 | Venus, Tobias (1518) | Won 2-1 | +181533 |
| 3sealed | 121 | Grimmer, Jasper (1816) | Won 2-0 | +231556 |
| 4sealed | 42 | Armstrong, Kimberley (1544) | Won 2-1 | +181574 |
| 5sealed | 33 | Armstrong, Anthony (1590) | Won 2-1 | +181592 |
| 6sealed | 7 | Roffey, Benjamin (1610) | Won 2-0 | +181610 |
| 7sealed | 9 | Yu, Fengtian (1750) | Lost 1-2 | -151595 |
| 8sealed | 20 | Bullock, David (1593) | Lost 1-2 | -181577 |
| 9sealed | 40 | Wai, Haw Chuan (1690) | Lost 1-2 | -161561 |
| top | average opponent: 1638record: 6-3 | new rating: 1561 | ||
| Grand Prix Singapore 2015 (modern) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 240 | Takimura, Kazuyuki (2030) | Lost 1-2 | -91512 |
| 4modern | 202 | Asehan, Ceasar John (1553) | Lost 1-2 | -181494 |
| 5modern | 407 | Koh, Nicholas (1499) | Lost 0-2 | -181476 |
| 6modern | 353 | Hock Hui Don, Lau (1481) | Won 2-0 | +191495 |
| top | average opponent: 1641record: 1-3 | new rating: 1495 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Saunders, Lachlan (1521) | Won 2-0 | +181518 |
| 2sealed | 299 | Koestler, Jonas (2024) | Won 2-1 | +271545 |
| 3sealed | 50 | Law, Charles (1865) | Won 2-1 | +241569 |
| 4sealed | 33 | Cheung, Justin (1927) | Lost 1-2 | -121557 |
| 5sealed | 68 | Hawkins, Daniel (1605) | Lost 0-2 | -171540 |
| 6sealed | 112 | Dewhirst, George (1505) | Lost 1-2 | -191521 |
| top | average opponent: 1741record: 3-3 | new rating: 1521 | ||