Jakobsen, Martin
Current rating: 1621
Record: 52-43-1
| Grand Prix Malmo 2012 (AVR limited) | starting rating: 1640 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 624 | Horn, Mattias (1483) | Lost 0-2 | -211619 |
| 2sealed | 673 | Schack Nielsen, Peter (1481) | Lost 1-2 | -201599 |
| 3sealed | 686 | Magnusson, Jacob (1464) | Won 2-0 | +151614 |
| 4sealed | 701 | Hebel, Jesper (1428) | Won 2-0 | +151629 |
| 5sealed | 624 | Heruth, Martin (1525) | Won 2-0 | +161645 |
| 6sealed | 622 | Perez, Ruben (1628) | Lost 1-2 | -181627 |
| 7sealed | 623 | Hoydonckx, Yves (1342) | Won 2-1 | +131640 |
| 8sealed | 577 | Myllynen, Teemu (1600) | Lost 1-2 | -191621 |
| top | average opponent: 1494record: 4-4 | new rating: 1621 | ||
| Grand Prix Gothenburg 2010 (M11 limited) | starting rating: 1633 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 69 | Akesson, Christian (1534) | Lost 1-2 | -201613 |
| 5sealed | 47 | Van Holsbeeck, Kristof (1788) | Lost 0-2 | -151598 |
| 6sealed | 122 | Jansson, Erik (1519) | Won 2-0 | +171615 |
| 7sealed | 67 | Ohman, Janne (1613) | Won 2-1 | +181633 |
| 8sealed | 53 | Juza, Martin (1760) | Won 2-0 | +201653 |
| 9sealed | 42 | Luna, Javier (1656) | Won 2-1 | +181671 |
| 10draft | 15 | Ludewig, Matthias (1763) | Lost 0-2 | -161655 |
| 11draft | 7 | Astrom, Jens (1590) | Lost 0-2 | -201635 |
| 12draft | 36 | Valori, Markus (1617) | Lost 1-2 | -181617 |
| 13draft | 38 | Martell, Tom (1948) | Lost 0-2 | -121605 |
| 14draft | 29 | Sundberg, Kalle (1552) | Won 2-1 | +171622 |
| 15draft | 56 | Hansen, Lasse Bo (1626) | Won 2-1 | +181640 |
| top | average opponent: 1664record: 6-6 | new rating: 1640 | ||
| Grand Prix Malmo 2006 (CSP limited) | starting rating: 1627 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 55 | Andersen, Mark (1500) | Won 2-1 | +151642 |
| 2sealed | 90 | Pettersson, Niklas (1465) | Won 2-0 | +151657 |
| 3sealed | 63 | Diezel, Michael (1800) | Won 2-1 | +211678 |
| 4sealed | 42 | Dingler, Martin (1661) | Lost 0-2 | -191659 |
| 5sealed | 89 | Nipans, Aldis (1474) | Lost 1-2 | -211638 |
| 6sealed | 109 | Asmussen, Allan (1488) | Won 2-0 | +151653 |
| 7sealed | 82 | Elfgren, Bertil (1508) | Lost 0-2 | -201633 |
| top | average opponent: 1557record: 4-3 | new rating: 1633 | ||
| Grand Prix Leipzig 2005 (BOK limited) | starting rating: 1672 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 53 | Teichert, Ernesto (1580) | Won 2-1 | +161688 |
| 4sealed | 16 | Schwankl, Andre (1585) | Lost 0-2 | -201668 |
| 5sealed | 50 | Dluzewski, Fabian (1488) | Lost 1-2 | -211647 |
| 6sealed | 72 | Richter, Sascha Peter (1522) | Lost 1-2 | -201627 |
| top | average opponent: 1544record: 1-3 | new rating: 1627 | ||
| Grand Prix Paris 2004 (COK limited) | starting rating: 1601 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 133 | Ortmann, Bjoern (1518) | Won 2-1 | +171618 |
| 3sealed | 88 | Siracusa, Bruno (1578) | Won 2-1 | +171635 |
| 4sealed | 2 | Pascoli, Mario (1720) | Lost 0-2 | -171618 |
| 5sealed | 122 | Lehoux, Sylvain (1720) | Lost 0-2 | -161602 |
| 6sealed | 172 | Osorio, Joao (1636) | Won 2-0 | +191621 |
| 7sealed | 84 | Vaxelaire, Juliette (1457) | Won 2-0 | +151636 |
| 8sealed | 40 | Grechishkin, Vitaly (1536) | Won 2-0 | +161652 |
| 9sealed | 29 | Lemoine, Vincent (1734) | Won 2-0 | +201672 |
| top | average opponent: 1612record: 6-2 | new rating: 1672 | ||
| Grand Prix Birmingham 2004 (DST limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 106 | Crick, Simon (1500) | Won 2-0 | +181533 |
| 2sealed | 100 | Fuentetaja, Nicanor (1575) | Won 2-1 | +181551 |
| 3sealed | 81 | Magera, Markus (1563) | Won 2-0 | +191570 |
| 4sealed | 45 | hurlock, robert (1536) | Won 2-0 | +171587 |
| 5sealed | 12 | Harle, Thomas (1516) | Lost 1-2 | -191568 |
| 6sealed | 31 | Scholz, Hannes (1782) | Won 2-1 | +221590 |
| 7sealed | 26 | Barclay, Bradley (1662) | Won 2-0 | +191609 |
| 8sealed | 17 | Grant, David (1604) | Lost 0-2 | -181591 |
| 9draft | 25 | Harle, Thomas (1528) | Won 2-0 | +171608 |
| 10draft | 4 | Birner, Armin (1823) | Lost 1-2 | -141594 |
| 11draft | 16 | Loeb, Davy (1778) | Won 2-0 | +211615 |
| 12draft | 9 | Hay, Tom (1679) | Lost 1-2 | -171598 |
| 13draft | 16 | Unfried, Jorg (1768) | Lost 0-2 | -151583 |
| 14draft | 19 | Areliusarson, Arelius (1584) | Won 2-0 | +181601 |
| top | average opponent: 1636record: 9-5 | new rating: 1601 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 182 | Schlatter, Urs (1454) | Won 2-1 | +171535 |
| 2sealed | 148 | Heilmann, Andreas (1484) | Won 2-1 | +171552 |
| 3sealed | 114 | Mifsud, Stephen (1519) | Lost 0-2 | -181534 |
| 4sealed | 192 | Charrie, Cedric (1503) | Lost 0-2 | -191515 |
| 5sealed | 249 | Hibler, Andreas (1500) | Won 2-1 | +181533 |
| 6sealed | 211 | Schetter, Jerome (1521) | Won 2-0 | +181551 |
| 7sealed | 114 | Mifsud Tommasi, Patrick (1580) | Lost 1-2 | -181533 |
| 8sealed | 165 | Gokalan, Burak (1524) | Lost 1-2 | -181515 |
| top | average opponent: 1511record: 4-4 | new rating: 1515 | ||
| Grand Prix Seville 2003 (LGN limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 66 | Proenca, Miguel (1518) | Lost 1-2 | -181520 |
| 2sealed | 264 | Escobedo, Carles (1497) | Lost 1-2 | -181502 |
| 3sealed | 310 | Cano, Ernesto (1464) | Won 2-1 | +171519 |
| 4sealed | 270 | Zahinos, David (1485) | Won 2-1 | +171536 |
| 5sealed | 232 | Rojo, Jordi (1542) | Lost 0-2 | -181518 |
| top | average opponent: 1501record: 2-3 | new rating: 1518 | ||
| Grand Prix Cologne 2001 (PLS limited) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 56 | Effmert, Marko (1500) | Won 2-0 | +171563 |
| 2sealed | 83 | Ramos Da Fonseca, Dilson (1518) | Won 2-0 | +171580 |
| 3sealed | 64 | Weidemann, Roman (1537) | Lost 1-2 | -191561 |
| 4sealed | 130 | Adler, Frank (1519) | Lost 0-2 | -191542 |
| 5sealed | 141 | Hernandez, Mark (1413) | Lost 0-2 | -201522 |
| 6sealed | 155 | Telli, Roland (1482) | Lost 0-2 | -191503 |
| 7sealed | 171 | Perrin, Jeremy (1487) | Won 2-1 | +181521 |
| 8sealed | 131 | Albrecht, Jens (1481) | Won 2-1 | +171538 |
| top | average opponent: 1492record: 4-4 | new rating: 1538 | ||
| Grand Prix Amsterdam 2001 (INV limited) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 52 | Weenink, Gerco (1500) | Lost 0-2 | -191493 |
| 2sealed | 241 | Van Bockstael, Evert (1482) | Won 2-0 | +181511 |
| 3sealed | 216 | Olszak, Michael (1499) | Won 2-0 | +181529 |
| 4sealed | 139 | Showers, Chris (1484) | Lost 0-2 | -191510 |
| 5sealed | 159 | Scholtens, Wouter (1500) | Won 2-1 | +181528 |
| 6sealed | 144 | Koopman, Rinke (1486) | Lost 0-2 | -191509 |
| 7sealed | 136 | Balluais, Romuald (1583) | Won 2-1 | +201529 |
| 8sealed | 113 | Restel, Sven (1480) | Won 2-1 | +171546 |
| top | average opponent: 1502record: 5-3 | new rating: 1546 | ||
| Grand Prix Helsinki 2000 (INV limited) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 53 | Klemetti, Jussi (1500) | Draw 1-1 | -11553 |
| 2sealed | 85 | Puurula, Asko (1500) | Won 2-0 | +171570 |
| 3sealed | 55 | Ruohola, Juho (1518) | Lost 1-2 | -191551 |
| 4sealed | 105 | Schildt, Henri (1511) | Lost 0-2 | -191532 |
| 5sealed | 131 | Pauvola, Mitto (1485) | Won 2-0 | +171549 |
| 6sealed | 103 | Salmikivi, Heikki (1498) | Lost 0-0 | -181531 |
| 7sealed | 114 | Brunila, Totti (1481) | Lost 0-2 | -191512 |
| top | average opponent: 1499record: 2-4-1 | new rating: 1512 | ||
| Grand Prix Oslo 1999 (ULG sealed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 72 | Magnell, Steinar (1500) | Won 2-0 | +181518 |
| 2sealed | 38 | Poulsen, Palle (1518) | Lost 1-2 | -181500 |
| 3sealed | 108 | Christensen, Benn (1500) | Lost 1-2 | -181482 |
| 4sealed | 143 | Tesli, Gaute Oliver Thu (1482) | Won 2-0 | +181500 |
| 5sealed | 98 | Harding, Oyvind (1500) | Won 2-1 | +181518 |
| 6sealed | 99 | Likvaern, Tormod (1518) | Won 2-0 | +181536 |
| 7sealed | 56 | Gronbek, Jakob (1535) | Won 2-1 | +181554 |
| top | average opponent: 1508record: 5-2 | new rating: 1554 | ||