Halder, Jason
Current rating: 1478
Record: 28-32-2
| Grand Prix Phoenix 2018 (modern) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 289 | Nossett, Miles (1476) | Lost 0-2 | -191517 |
| 2modern | 327 | Garcia, Zachary (1487) | Lost 0-2 | -181499 |
| 3modern | 634 | Williams, Colten (1464) | Lost 1-2 | -191480 |
| 4modern | 622 | Grawey, Josiah (1375) | Draw 1-1 | -21478 |
| top | average opponent: 1450record: 0-3-1 | new rating: 1478 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 233 | Derrickson, David (1767) | Lost 0-2 | -141536 |
| 2sealed | 270 | Green, Adrian (1426) | Won 2-1 | +161552 |
| 3sealed | 157 | Tetlow, Adam (1691) | Lost 0-2 | -161536 |
| top | average opponent: 1628record: 1-2 | new rating: 1536 | ||
| Grand Prix Omaha 2015 (modern) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 191 | Masterson, Caleb (1500) | Won 2-1 | +181512 |
| 2modern | 203 | Couch, George (1488) | Won 2-0 | +181530 |
| 3modern | 202 | Courtney, Joe (1574) | Won 2-0 | +181548 |
| 4modern | 107 | Swantz, Austin (1518) | Lost 0-2 | -181530 |
| 5modern | 98 | Price, John (1572) | Won 2-0 | +191549 |
| 6modern | 58 | Schreiner, Kyle (1570) | Lost 0-2 | -181531 |
| 7modern | 207 | Zakrzewski, Lucas (1543) | Won 2-0 | +181549 |
| 8modern | 77 | Lager, Nolan (1561) | Won 2-1 | +181567 |
| 9modern | 82 | Limoseth, Kyle (1601) | Lost 0-2 | -171550 |
| top | average opponent: 1548record: 6-3 | new rating: 1550 | ||
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 149 | Silveira, Michael (1535) | Lost 1-2 | -171467 |
| 4modern | 462 | Johnson, Titus (1518) | Won 2-1 | +191486 |
| 5modern | 208 | Wager, John (1535) | Won 2-1 | +191505 |
| 6modern | 202 | Tuthill, Nikolai (1557) | Lost 1-2 | -171488 |
| 7modern | 262 | Hwang, Eugene (1840) | Won 2-1 | +241512 |
| 8modern | 231 | Wells, Anthony (1492) | Lost 0-2 | -181494 |
| top | average opponent: 1579record: 3-3 | new rating: 1494 | ||
| Grand Prix Kansas City 2013 (modern) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 10 | James, Scott (1500) | Won 2-1 | +191482 |
| 2modern | 72 | Shaw, John (1518) | Lost 1-2 | -181464 |
| 3modern | 344 | Allen, Michael (1405) | Won 2-1 | +171481 |
| 4modern | 222 | Wilkins, Kevin (1541) | Lost 1-2 | -171464 |
| 5modern | 334 | Tietz, Josh (1453) | Won 2-0 | +181482 |
| 6modern | 55 | Erwin, Adam (1511) | Won 2-0 | +191501 |
| 7modern | 114 | Reed, Michael (1535) | Lost 1-2 | -181483 |
| 8modern | 156 | Hinkley, Aiden (1505) | Won 2-0 | +191502 |
| 9modern | 111 | Cathcart, Skeeter (1535) | Lost 0-2 | -181484 |
| top | average opponent: 1500record: 5-4 | new rating: 1484 | ||
| Grand Prix Chicago 2012 (modern) | starting rating: 1423 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 11 | Demoss, Daniel (1500) | Won 2-1 | +201443 |
| 2modern | 127 | Pleasants, Jacob (1500) | Won 2-1 | +191462 |
| 3modern | 130 | Mize, Logan (1768) | Lost 0-2 | -131449 |
| 4modern | 183 | Borowski, Joseph (1517) | Won 2-0 | +201469 |
| 5modern | 154 | Jacobson, Mary (1649) | Lost 0-2 | -151454 |
| 6modern | 257 | Larsen, Soren (1652) | Lost 1-2 | -151439 |
| 7modern | 333 | Pereira, Alvaro Bruno (1487) | Won 2-0 | +191458 |
| 8modern | 239 | Heup, Michael (1560) | Lost 1-2 | -161442 |
| 9modern | 203 | Neigel, Barrett (1612) | Won 2-1 | +211463 |
| top | average opponent: 1583record: 5-4 | new rating: 1463 | ||
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 61 | Lueck, Josh F (1500) | Won 2-1 | +191457 |
| 2standard | 94 | Seabul, Chris (1518) | Lost 1-2 | -171440 |
| 3standard | 197 | Awde, Matthew (1464) | Draw 1-1 | 01440 |
| 4standard | 340 | Geldon, Shane (1500) | Lost 1-2 | -171423 |
| top | average opponent: 1496record: 1-2-1 | new rating: 1423 | ||
| Grand Prix Lincoln 2012 (modern) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 162 | Pullum, Michael D (1500) | Lost 0-2 | -171473 |
| 2modern | 260 | Hoppe, Scott (1482) | Lost 1-2 | -181455 |
| 3modern | 278 | Willis, Brandon (1502) | Lost 1-2 | -171438 |
| top | average opponent: 1495record: 0-3 | new rating: 1438 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 365 | Soulati, Reza (1502) | Won 2-0 | +181542 |
| 2sealed | 132 | Yang, David (1500) | Won 2-1 | +171559 |
| 3sealed | 190 | Sittner, Alex (1664) | Lost 0-2 | -161543 |
| 4sealed | 245 | Dunbar, Heath (1582) | Lost 0-2 | -181525 |
| 5sealed | 271 | Watson, Garrett (1602) | Lost 0-2 | -161509 |
| 6sealed | 329 | Ocel, Cat (1484) | Lost 1-2 | -191490 |
| top | average opponent: 1556record: 2-4 | new rating: 1490 | ||
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 100 | Jackson, Sam (1500) | Won 2-1 | +181518 |
| 2block | 157 | Welch, Michael (1518) | Won 2-1 | +181536 |
| 3block | 69 | Nemeth, Mark (1537) | Won 2-1 | +181554 |
| 4block | 45 | Saylor, David (1692) | Lost 1-2 | -151539 |
| 5block | 132 | Zandi, Jeff (1617) | Won 2-1 | +191558 |
| 6block | 66 | Soorani, Shaheen (1696) | Won 2-0 | +201578 |
| 7block | 44 | Strayer, Jeremy (1572) | Lost 0-2 | -181560 |
| 8block | 50 | Bradford, Paul (1550) | Lost 0-2 | -181542 |
| 9block | 84 | Brewer, Garhett (1535) | Lost 0-2 | -181524 |
| top | average opponent: 1580record: 5-4 | new rating: 1524 | ||