Scarth, John
Current rating: 1453
Record: 9-9-2 (GP) / 4-9-1 (professional)
| Grand Prix Indianapolis 2015 (BFZ standard) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 91 | Eckert, Jacob (1444) | Draw 1-1 | 01427 |
| 2standard | 266 | Briggs, Richard (1503) | Won 2-1 | +201447 |
| 3standard | 237 | Mack, Shaun (1623) | Lost 0-2 | -151432 |
| 4standard | 367 | Phelps, Daniel (1490) | Won 2-0 | +191451 |
| 5standard | 253 | Seres, Alex (1455) | Lost 0-2 | -181433 |
| 6standard | 334 | Warner, Todd (1458) | Won 2-1 | +191452 |
| 7standard | 250 | Yonke, Tyler (1524) | Won 2-0 | +191471 |
| 8standard | 173 | Tedori, Kota (1485) | Lost 1-2 | -181453 |
| top | average opponent: 1498record: 4-3-1 | new rating: 1453 | ||
| Grand Prix Atlanta 2001 (ODY limited) | starting rating: 1419 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 89 | Rothman, Ben (1489) | Draw 1-1 | +11420 |
| 2sealed | 82 | Noland, Donald (1490) | Lost 0-2 | -171403 |
| 3sealed | 133 | Knight, Kenny (1482) | Won 2-0 | +201423 |
| 4sealed | 125 | Rothman, Erin (1482) | Won 2-1 | +191442 |
| 5sealed | 94 | Mayo, Frank (1623) | Lost 1-2 | -151427 |
| top | average opponent: 1513record: 2-2-1 | new rating: 1427 | ||
| Grand Prix Detroit 2001 (PLS limited) | starting rating: 1412 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 125 | Tarner, Matt (1518) | Won 2-0 | +201432 |
| 3sealed | 66 | Krempels, Craig (1534) | Lost 1-2 | -171415 |
| 4sealed | 161 | Wilson, John B (1518) | Won 2-0 | +201435 |
| 5sealed | 55 | Pannell, Thomas (1518) | Lost 1-2 | -161419 |
| top | average opponent: 1522record: 2-2 | new rating: 1419 | ||
| Grand Prix Washington DC 1999 (UDS limited) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 2 | Schwendemann, Wade (1500) | Won 0-0 | +191445 |
| 3sealed | 63 | Russell, Kenneth (1500) | Lost 0-0 | -171428 |
| 4sealed | 139 | Dunlap, Oliver (1517) | Lost 0-0 | -161412 |
| top | average opponent: 1506record: 1-2 | new rating: 1412 | ||
| Pro Tour Los Angeles 1999 (USG rochester) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 51 | Peay, Stanton (1500) | Lost 0-0 | -171429 |
| 2rochester | 165 | Godinez Estrada, Gerardo (1520) | Won 2-0 | +201449 |
| 3rochester | 149 | Yu, Rozano (1508) | Won 2-1 | +191468 |
| 4rochester | 40 | Lauer, Erik (1772) | Lost 1-2 | -131455 |
| 5rochester | 26 | McCarrel, Casey (1635) | Lost 0-2 | -141441 |
| 6rochester | 130 | Stanoev, Ivan (1543) | Draw 0-0 | +11442 |
| 7rochester | 22 | Yu, Rozano (1507) | Lost 0-0 | -161426 |
| top | average opponent: 1569record: 2-4-1 | new rating: 1426 | ||
| Pro Tour Los Angeles 1998 (Tempest block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 145 | Palm, Magnus (1500) | Won 0-0 | +181518 |
| 2block | 10 | Kastle, Darwin (1518) | Lost 0-0 | -181500 |
| 3block | 111 | Heiss, Nathan (1500) | Lost 0-0 | -181482 |
| 4block | 123 | Zajdner, Mark (1482) | Lost 0-0 | -181464 |
| 5block | 121 | Gillard, Didier (1482) | Lost 0-0 | -181446 |
| 6block | 125 | Bax, Dave (1446) | Won 0-0 | +181464 |
| 7block | 112 | Maki, Koichiro (1464) | Lost 0-0 | -181446 |
| top | average opponent: 1484record: 2-5 | new rating: 1446 | ||