Sakellis, Ioannis
Current rating: 1571
| Grand Prix Birmingham 2018 (std) (DOM standard) | starting rating: 1621 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 53 | Ayling, Edward (1500) | Won 2-0 | +151636 |
| 2standard | 187 | Bergerot, Nicolas (1473) | Lost 0-2 | -211615 |
| 3standard | 475 | Pots, Maurice (1504) | Won 2-1 | +161631 |
| 4standard | 237 | Bishop, Peter (1511) | Lost 1-2 | -201611 |
| 5standard | 390 | Sciandra, George (1499) | Lost 1-2 | -201591 |
| 6standard | 400 | Zaslawski, Nicolas (1553) | Lost 0-2 | -191572 |
| 7standard | 354 | Dalsgaard, Simen Andre (1462) | Won 2-1 | +161588 |
| 8standard | 304 | Brunet, Max (1624) | Lost 0-2 | -171571 |
| top | average opponent: 1516record: 3-5 | new rating: 1571 | ||
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 109 | Silvestre, Vicent (1683) | Lost 0-2 | -151523 |
| 3standard | 663 | Tottey, Phil (1437) | Won 2-0 | +161539 |
| 4standard | 306 | Saville, Neil (1485) | Won 2-0 | +171556 |
| 5standard | 227 | Navarro Del Dujo, Carlos (1747) | Won 2-0 | +211577 |
| 6standard | 199 | Bruski, Bartosz (1639) | Won 2-0 | +201597 |
| 7standard | 91 | Berteaux, Julien (1594) | Lost 1-2 | -181579 |
| 8standard | 124 | Chu, TC (1493) | Lost 0-2 | -201559 |
| 9standard | 242 | Thacker, Gavin (1483) | Won 2-1 | +171576 |
| 10standard | 156 | Balfour, Brandon (1544) | Won 2-0 | +171593 |
| 11standard | 106 | Connell, Garth (1590) | Lost 0-2 | -181575 |
| 12standard | 152 | Antoniou, Daniel (1862) | Won 2-0 | +231598 |
| 13standard | 106 | Meier, Adrian (1722) | Won 2-1 | +201618 |
| 14standard | 74 | Horev, Ori (1633) | Won 2-1 | +191637 |
| 15standard | 75 | Catton, Rob (1743) | Lost 0-2 | -161621 |
| top | average opponent: 1618record: 9-5 | new rating: 1621 | ||
| Grand Prix London 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 159 | Brennan, Kyle (1606) | Lost 0-2 | -161484 |
| 3standard | 426 | Fogarty, Kevin (1547) | Won 2-1 | +191503 |
| 4standard | 153 | Moorton, Charlie (1547) | Lost 0-2 | -171486 |
| 5standard | 373 | Donkers, Kevin (1379) | Won 2-0 | +161502 |
| 6standard | 261 | Rood, Niek (1380) | Won 2-1 | +161518 |
| 7standard | 140 | Boothaway, James (1539) | Won 2-1 | +181536 |
| 8standard | 97 | Knight, Jon (1578) | Won 2-1 | +191555 |
| 9standard | 64 | Levitt, Olivier (1612) | Lost 1-2 | -171538 |
| top | average opponent: 1523record: 5-3 | new rating: 1538 | ||