Greenspan, Jonathan
Current rating: 1553
Record: 18-14-4 (GP) / 0-5 (professional)
| Grand Prix Richmond 2006 (GPT limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 10 | Frank, Harry (1535) | Won 2-0 | +181532 |
| 3sealed | 57 | Coqueiro, Rafael S (1539) | Lost 1-2 | -181514 |
| 4sealed | 87 | Neiman, Luis (1523) | Won 2-0 | +191533 |
| 5sealed | 96 | Courtois, David (1535) | Won 2-0 | +181551 |
| 6sealed | 61 | Connelly, Christopher (1674) | Won 2-0 | +201571 |
| 7sealed | 38 | Jacks, Andy (1576) | Lost 1-2 | -181553 |
| top | average opponent: 1564record: 4-2 | new rating: 1553 | ||
| Grand Prix New Orleans 2003 (extended) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 18 | Wilson, Kiel (1556) | Won 2-0 | +201448 |
| 5extended | 4 | Stokinger, Andrew (1821) | Won 2-0 | +251473 |
| 6extended | 3 | Lobato, Carl (1573) | Lost 0-2 | -161457 |
| 7extended | 25 | Moore, Jeremy (1534) | Lost 0-2 | -171440 |
| 8extended | 46 | Walls, Gabe (1687) | Won 2-1 | +231463 |
| 9extended | 31 | McGuffin, Max (1615) | Won 2-0 | +201483 |
| 10extended | 14 | Smith, Alex (1622) | Draw 1-1 | +31486 |
| 11extended | 13 | Gomersall, Sam (1733) | Lost 0-2 | -141472 |
| 12extended | 22 | Berkowitz, Jordan (1610) | Draw 1-1 | +31475 |
| 13extended | 23 | Herzog, Brendon (1543) | Won 2-1 | +191494 |
| 14extended | 17 | Ferguson, Beau (1601) | Won 2-1 | +201514 |
| top | average opponent: 1627record: 6-3-2 | new rating: 1514 | ||
| Grand Prix Tampa Bay 2002 (TOR limited) | starting rating: 1379 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 93 | Latham, Matthew (1500) | Won 2-0 | +211400 |
| 2sealed | 31 | Heilman, D. Drummand (1518) | Lost 0-2 | -161384 |
| 3sealed | 85 | Figueroa, Milton (1389) | Won 2-1 | +181402 |
| 4sealed | 84 | Martinez, Carlos (1520) | Won 2-0 | +201422 |
| 5sealed | 66 | Kim, Jason (1538) | Lost 1-2 | -161406 |
| 6sealed | 94 | roberts, Angeline (1518) | Draw 1-1 | +21408 |
| 7sealed | 81 | Wetherell, Ron (1518) | Won 2-1 | +201428 |
| top | average opponent: 1500record: 4-2-1 | new rating: 1428 | ||
| Grand Prix Atlanta 2001 (ODY limited) | starting rating: 1403 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 36 | Skelton, J.P. (1500) | Won 2-0 | +201423 |
| 3sealed | 5 | Wilson, Russell (1536) | Lost 1-2 | -161407 |
| 4sealed | 75 | Ferreira, Charles (1518) | Lost 1-2 | -161391 |
| 5sealed | 113 | Sherman, Kevin (1506) | Won 2-1 | +201411 |
| 6sealed | 80 | Jones, Ricky (1513) | Lost 0-2 | -161395 |
| 7sealed | 91 | Schroeder, Sterling (1532) | Lost 1-2 | -161379 |
| top | average opponent: 1517record: 2-4 | new rating: 1379 | ||
| Grand Prix Washington DC 1999 (UDS limited) | starting rating: 1412 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 97 | Bargender, Jason (1500) | Lost 0-0 | -161396 |
| 2sealed | 109 | Evaristo, Tommy (1482) | Won 0-0 | +191415 |
| 3sealed | 143 | Shaskus, Frank (1482) | Lost 0-0 | -161399 |
| 4sealed | 166 | Duewel-Zahniser, Eric (1481) | Won 0-0 | +191418 |
| 5sealed | 133 | Allen, Dustin (1500) | Lost 0-0 | -161402 |
| 6sealed | 110 | Stokes, Kevin (1482) | Draw 0-0 | +11403 |
| top | average opponent: 1488record: 2-3-1 | new rating: 1403 | ||
| Pro Tour Los Angeles 1999 (USG rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 134 | Boling, Cannon (1500) | Lost 0-0 | -181482 |
| 2rochester | 98 | Henstra, Matt (1564) | Lost 0-2 | -171465 |
| 4rochester | 15 | Swan, Brad (1466) | Lost 0-2 | -181447 |
| 5rochester | 35 | Marsh, Warren (1505) | Lost 0-2 | -161431 |
| 7rochester | 77 | Albert, Olivier (1413) | Lost 0-0 | -191412 |
| top | average opponent: 1489record: 0-5 | new rating: 1412 | ||