Lewis, Katherine
Current rating: 1539
Record: 10-8
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1058 | Pingree, Brett (1500) | Lost 1-2 | -181466 |
| 2modern | 1063 | Ozalas, David (1402) | Won 2-0 | +171483 |
| 3modern | 964 | Ong, Gregg (1501) | Lost 0-2 | -181465 |
| 4modern | 1148 | Landaira, Noah (1407) | Won 2-1 | +171482 |
| 5modern | 1115 | Poland, Joshua (1499) | Won 2-1 | +191501 |
| 6modern | 871 | Stillman, Craig (1512) | Won 2-1 | +181519 |
| 7modern | 821 | Shaw, Patrick (1595) | Won 2-0 | +191538 |
| 8modern | 768 | Duggan, John (1557) | Lost 1-2 | -171521 |
| 9modern | 840 | Fett, Hans (1539) | Won 2-0 | +181539 |
| average opponent: 1501record: 6-3 | new rating: 1539 | |||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 101 | Perry, Robert (1500) | Won 2-0 | +181518 |
| 2sealed | 215 | Young, Brett (1480) | Lost 1-2 | -191499 |
| 3sealed | 533 | Kidd, Shawn (1536) | Won 2-1 | +191518 |
| 4sealed | 322 | Gray, Chris (1521) | Won 2-0 | +181536 |
| 5sealed | 143 | Mabie, Bryan (1699) | Lost 0-2 | -151521 |
| 6sealed | 253 | Quesenberry, Glen (1514) | Won 2-1 | +181539 |
| 7sealed | 205 | Nance, Hunter (1565) | Lost 1-2 | -181521 |
| 8sealed | 248 | Sturtevant, Evan (1476) | Lost 1-2 | -181503 |
| 9sealed | 205 | Baslock, Daniel (1476) | Lost 0-2 | -191484 |
| average opponent: 1530record: 4-5 | new rating: 1484 | |||