Tiernan, Peter
Current rating: 1554
Record: 9-6-1
| Grand Prix Kansas City 2003 (MRD limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 28 | Hays, Brennan (1522) | Lost 0-2 | -191536 |
| 3sealed | 92 | Stroud, Wes (1500) | Won 2-0 | +181554 |
| 4sealed | 110 | Job, Jonathan (1678) | Lost 1-2 | -161538 |
| 5sealed | 160 | Basarich, Nathan (1501) | Lost 1-2 | -191519 |
| 6sealed | 135 | Cowan, Russell (1514) | Won 2-0 | +181537 |
| 7sealed | 111 | Reynolds, Rachel (1561) | Draw 1-1 | +11538 |
| 8sealed | 88 | Marshall, Shawn (1455) | Won 2-0 | +161554 |
| average opponent: 1533record: 3-3-1 | new rating: 1554 | |||
| Grand Prix Boston 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 132 | Weiss, Eric (1500) | Won 2-1 | +181518 |
| 2sealed | 129 | Wood, Matthew (1526) | Lost 0-2 | -181500 |
| 3sealed | 200 | Faucher, Bernie (1502) | Lost 0-2 | -181482 |
| 4sealed | 230 | Menard, Chad (1491) | Won 2-0 | +181500 |
| 5sealed | 169 | Teamann, Scott (1554) | Won 2-0 | +191519 |
| 6sealed | 111 | Bell, Bradley (1518) | Won 2-0 | +181537 |
| 7sealed | 104 | Stein, Mike (1484) | Lost 0-2 | -191518 |
| 8sealed | 94 | Lovelett, Shawn (1547) | Won 2-0 | +191537 |
| 9sealed | 68 | Phillips, Brian M (1544) | Won 2-0 | +181555 |
| average opponent: 1518record: 6-3 | new rating: 1555 | |||