Madder, Sheila
Current rating: 1450
Record: 13-16
| Grand Prix Manchester 2014 (Theros block) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 111 | John, Chris (1500) | Lost 0-2 | -181447 |
| 2block | 532 | White, Daniel (1423) | Won 2-0 | +181465 |
| 3block | 57 | Bolger, Lee (1499) | Lost 1-2 | -171448 |
| 4block | 470 | Wu, Julien (1485) | Lost 0-2 | -181430 |
| 5block | 537 | Evans, Ross (1458) | Lost 1-2 | -171413 |
| 6block | 515 | Janes, Harry (1446) | Won 2-1 | +181431 |
| 7block | 433 | Fawcett, James (1463) | Won 2-0 | +191450 |
| top | average opponent: 1468record: 3-4 | new rating: 1450 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 423 | Hammig, Shen (1411) | Won 2-1 | +171497 |
| 2sealed | 457 | Saudek, Lucien (1569) | Won 2-1 | +191516 |
| 3sealed | 301 | West, Lee (1519) | Lost 0-2 | -171499 |
| 4sealed | 598 | Trumpler, Daniel (1465) | Won 2-1 | +171516 |
| 5sealed | 178 | Kall, Tim (1748) | Lost 0-2 | -141502 |
| 6sealed | 306 | Hensley, Carl D (1515) | Lost 0-2 | -181484 |
| 7sealed | 509 | Kimbrey, Andy (1500) | Won 2-0 | +191503 |
| 8sealed | 363 | Oude Luttikhuis, Maarten (1427) | Lost 0-2 | -201483 |
| 9sealed | 364 | Horden, Stuart (1455) | Lost 0-2 | -181465 |
| top | average opponent: 1512record: 4-5 | new rating: 1465 | ||
| Grand Prix Manchester 2012 (DKA limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 496 | Balcells, Josep (1640) | Won 1-0 | +211538 |
| 3sealed | 480 | Neuhaus, Peter (1535) | Lost 1-2 | -181520 |
| 4sealed | 496 | Round, Ben (1517) | Lost 0-2 | -181502 |
| 5sealed | 591 | Court, Gordon (1401) | Lost 0-2 | -201482 |
| 6sealed | 575 | Devis, Larry (1408) | Won 2-1 | +161498 |
| 7sealed | 548 | Kimmett, Roth (1500) | Lost 1-2 | -181480 |
| top | average opponent: 1500record: 2-4 | new rating: 1480 | ||
| Grand Prix Lille 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 134 | Maly, Ondrej (1460) | Lost 0-2 | -191481 |
| 2standard | 275 | Matthieu, Ben (1450) | Won 2-1 | +181499 |
| 3standard | 262 | Claire, Guillaume (1464) | Lost 0-2 | -191480 |
| 4standard | 266 | Tsangue, Sebastien (1433) | Won 2-1 | +171497 |
| 5standard | 250 | Samra, Manveer (1586) | Won 2-1 | +201517 |
| 6standard | 232 | Filatriau, Franck (1531) | Lost 1-2 | -181499 |
| 7standard | 242 | Tetaert, Fred M (1519) | Won 2-1 | +181517 |
| top | average opponent: 1492record: 4-3 | new rating: 1517 | ||