Gruhn, Alexander
Current rating: 1380
Record: 15-24-3
| Grand Prix Dortmund 2006 (GPT limited) | starting rating: 1403 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 146 | Dietrich, Torsten (1500) | Won 2-1 | +191422 |
| 2sealed | 63 | Arendt, Rafal (1526) | Draw 1-1 | +21424 |
| 3sealed | 78 | Braun, Oliver (1604) | Lost 0-2 | -141410 |
| 4sealed | 144 | Kocks, Sung (1502) | Lost 0-2 | -171393 |
| 5sealed | 187 | Schaffranietz, Ervin (1497) | Won 2-1 | +201413 |
| 6sealed | 140 | Gerrits, Marcel (1413) | Lost 1-2 | -181395 |
| 7sealed | 139 | Ploch, Thomas (1536) | Lost 0-2 | -151380 |
| top | average opponent: 1511record: 2-4-1 | new rating: 1380 | ||
| Grand Prix Leipzig 2005 (BOK limited) | starting rating: 1408 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 19 | Wenkemann, Dirk (1485) | Won 2-1 | +201428 |
| 2sealed | 14 | Nielsen, Morten (1529) | Lost 1-2 | -161412 |
| 3sealed | 142 | Belonoznik, Tomas (1500) | Lost 1-2 | -171395 |
| 4sealed | 180 | Kroll, Christopher (1482) | Lost 0-2 | -161379 |
| 5sealed | 175 | Ulm, Andreas (1448) | Won 2-0 | +191398 |
| 6sealed | 125 | Hauser, Nikolas (1469) | Won 2-1 | +191417 |
| 7sealed | 116 | Jautakis, Andrius (1597) | Lost 0-2 | -141403 |
| top | average opponent: 1502record: 3-4 | new rating: 1403 | ||
| Grand Prix Paris 2004 (COK limited) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 66 | Maugard, Antoine (1520) | Lost 0-2 | -161422 |
| 2sealed | 256 | Schweppe, Mark (1482) | Lost 0-2 | -171405 |
| 3sealed | 352 | Rydlicki, Arnaud (1460) | Won 2-0 | +191424 |
| 4sealed | 276 | Kohl, Reinhold (1561) | Lost 0-2 | -161408 |
| top | average opponent: 1506record: 1-3 | new rating: 1408 | ||
| Grand Prix Gothenburg 2003 (MRD limited) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 20 | Krantz, Thomas (1500) | Lost 1-2 | -181452 |
| 2sealed | 159 | Brander, Emil (1482) | Won 2-1 | +191471 |
| 3sealed | 139 | Lennartsson, Stefan (1489) | Lost 0-2 | -181453 |
| 4sealed | 162 | Vaisanen, Aarne (1505) | Lost 0-2 | -171436 |
| 5sealed | 179 | Inerot, Niclas (1464) | Lost 0-2 | -181418 |
| 6sealed | 164 | Kunkeler, Nathan (1445) | Won 2-0 | +191437 |
| 7sealed | 136 | Kirsten, Filip (1478) | Won 2-1 | +191456 |
| 8sealed | 94 | Ivarsson, Daniel (1490) | Lost 0-2 | -181438 |
| top | average opponent: 1482record: 3-5 | new rating: 1438 | ||
| Grand Prix Copenhagen 2002 (ONS rochester) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 67 | Schold, Hakan (1482) | Draw 1-1 | 01463 |
| 2sealed | 126 | Meldal, Bjorn (1499) | Lost 0-2 | -171446 |
| 3sealed | 185 | Appel, Rene (1569) | Lost 0-2 | -161430 |
| 4sealed | 220 | Adkison, Gary (1463) | Draw 1-1 | +11431 |
| 5sealed | 200 | Sorenson, Kaja (1465) | Won 2-0 | +191450 |
| 6sealed | 164 | Larsen, Michael 9525 (1522) | Won 2-0 | +191469 |
| 7sealed | 126 | Raasted, Mads (1436) | Won 2-0 | +171486 |
| 8sealed | 98 | Lehtonen, Eetu (1558) | Lost 1-2 | -161470 |
| top | average opponent: 1499record: 3-3-2 | new rating: 1470 | ||
| Grand Prix Heidelberg 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 148 | Seidel, Christian (1431) | Won 2-1 | +171517 |
| 2sealed | 17 | Gorniak, Mariusz (1512) | Lost 0-2 | -181499 |
| 3sealed | 195 | Jagereder, Andreas (1590) | Won 2-0 | +191518 |
| 4sealed | 217 | Granzin, Andreas (1434) | Won 2-1 | +171535 |
| 5sealed | 114 | Weise, Hannes (1541) | Lost 0-2 | -181517 |
| 6sealed | 176 | Kramer, Philipp (1517) | Lost 1-2 | -181499 |
| 7sealed | 164 | Rall, Oliver (1507) | Lost 0-2 | -181481 |
| 8sealed | 142 | Gilg, Michael (1482) | Lost 1-2 | -181463 |
| top | average opponent: 1502record: 3-5 | new rating: 1463 | ||