Stemmer, Jan
Current rating: 1613
Record: 17-12
| Grand Prix Las Vegas 2019 (limited) (MH1 limited) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Roake, Andrew (1500) | Won 2-0 | +161587 |
| 2sealed | 16 | Calandro, Tiffany (1301) | Won 2-0 | +131600 |
| 3sealed | 196 | Johnston, Joel (1584) | Won 2-0 | +181618 |
| 4sealed | 145 | Goslar, Matthew (1753) | Won 2-1 | +211639 |
| 5sealed | 69 | Duke, Reid (2223) | Lost 0-2 | -91630 |
| 6sealed | 93 | Rehome, Kyle (1514) | Won 2-0 | +161646 |
| 7sealed | 25 | Young, Kelvin (1609) | Lost 0-2 | -191627 |
| 8sealed | 135 | Darras, Alexandre (1847) | Lost 1-2 | -141613 |
| top | average opponent: 1666record: 5-3 | new rating: 1613 | ||
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1573 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 44 | Grill, Manuel (1500) | Won 2-0 | +161589 |
| 2modern | 185 | Marroquin, Jonathan Hervey (1438) | Won 2-1 | +151604 |
| 3modern | 302 | Wang, Forrest (1836) | Won 2-1 | +231627 |
| 4modern | 89 | Jessup, Daniel (1728) | Lost 1-2 | -171610 |
| 5modern | 362 | Wendorf, Eric (1443) | Lost 0-2 | -211589 |
| 6modern | 303 | Harris, Wyatt (1552) | Lost 1-2 | -181571 |
| top | average opponent: 1583record: 3-3 | new rating: 1571 | ||
| Grand Prix Lyon 2018 (modern) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 656 | Heckmann, Tobias (1440) | Won 2-0 | +171535 |
| 2modern | 70 | Dubois, Thomas (1543) | Won 2-0 | +181553 |
| 3modern | 149 | Zaslawski, Nicolas (1576) | Won 2-1 | +191572 |
| 4modern | 106 | Larsson, Joel (1947) | Won 2-0 | +241596 |
| 5modern | 36 | Horvat, Vjeran (1829) | Lost 1-2 | -141582 |
| 6modern | 142 | Van der Paelt, Thomas (1867) | Won 2-0 | +231605 |
| 7modern | 147 | Galicia, Alberto (1802) | Lost 0-2 | -141591 |
| 8modern | 242 | Weijgertse, Dave (1571) | Lost 1-2 | -181573 |
| top | average opponent: 1697record: 5-3 | new rating: 1573 | ||
| Grand Prix Bochum 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 6 | Friedrich, Markus (1500) | Lost 1-2 | -181482 |
| 2standard | 302 | Horre, Tom (1481) | Lost 1-2 | -181464 |
| 3standard | 333 | Peters, Oliver [ENG] (1464) | Won 2-1 | +181482 |
| 4standard | 301 | Trice, Christian (1483) | Won 2-0 | +181500 |
| 5standard | 201 | Notzel, Sebastian (1509) | Won 2-0 | +181518 |
| 6standard | 241 | Holm, Jacob (1531) | Won 2-1 | +181536 |
| 7standard | 104 | Schulz, Micha (1537) | Lost 0-2 | -181518 |
| top | average opponent: 1501record: 4-3 | new rating: 1518 | ||