De Koster, Franzke K. (NED) - Svanholm, Borge W. (NOR) 0-1, Oslo Chess International, Elo-group (1), Oslo NOR, 2011.10.02
Roholdt, Njaal (NOR) - De Koster, Franzke K. (NED) 0-1, Oslo Chess International, Elo-group (2), Oslo NOR, 2011.10.02
Djurhuus, Eivind X (NOR) - De Koster, Franzke K. (NED) 1-0, Oslo Chess International, Elo-group (4), Oslo NOR, 2011.10.02
De Koster, Franzke K. (NED) - Torgersen, Eric (NOR) 0-1, Oslo Chess International, Elo-group (5), Oslo NOR, 2011.10.02
Sivaranjan, Aschmirthan (NOR) - De Koster, Franzke K. (NED) 1-0, Oslo Chess International, Elo-group (6), Oslo NOR, 2011.10.02
De Koster, Franzke K. (NED) - Gholami, Anita (NOR) 0-1, Oslo Chess International, Elo-group (9), Oslo NOR, 2011.10.02
De Koster, Franzke K. (NED) - Mihajlov, Svetoslav (NOR) 0-1, Sveins Minneturnering (1), Oslo NOR, 2010.06.18
Rundgren, Anders (NOR) - De Koster, Franzke K. (NED) 1-0, Sveins Minneturnering (2), Oslo NOR, 2010.06.18
De Koster, Franzke K. (NED) - Roholdt, Njaal (NOR) 0-1, Sveins Minneturnering (7), Oslo NOR, 2010.06.18
Ellingsrud, Bjorn (NOR) - De Koster, Franzke K. (NED) 1/2-1/2, Sveins Minneturnering (8), Oslo NOR, 2010.06.18
De Koster, Franzke K. (NED) - Setre, Roger (NOR) 0-1, Sveins Minneturnering (9), Oslo NOR, 2010.06.18
Kristiansen, Reidar (NOR) - De Koster, Franzke K. (NED) 1-0, Gausdal Classics, Elo (9), Gausdal NOR, 2008.04.16
De Koster, Franzke K. (NED) - Johansen, Bjorn Berg (NOR) 0-1, Gausdal Classics, Elo (8), Gausdal NOR, 2008.04.15
Lahlum, Ida (NOR) - De Koster, Franzke K. (NED) 1-0, Gausdal Classics, Elo (7), Gausdal NOR, 2008.04.14
De Koster, Franzke K. (NED) - Hansen, Erle Andrea Marki (NOR) 1-0, Gausdal Classics, Elo (6), Gausdal NOR, 2008.04.13
De Koster, Franzke K. (NED) - Lie, Terje (NOR) 1-0, Gausdal Classics, Elo (5), Gausdal NOR, 2008.04.12
Kristiansen, Espen (NOR) - De Koster, Franzke K. (NED) 1-0, Gausdal Classics, Elo (4), Gausdal NOR, 2008.04.11
Jansen, Andreas (NOR) - De Koster, Franzke K. (NED) 1-0, Gausdal Classics, Elo (3), Gausdal NOR, 2008.04.10
De Koster, Franzke K. (NED) - De Luna, Alberto (ESP) 0-1, Gausdal Classics, Elo (2), Gausdal NOR, 2008.04.09
Hobber, Anders (NOR) - De Koster, Franzke K. (NED) 1-0, Gausdal Classics, Elo (1), Gausdal NOR, 2008.04.08
De Koster, Franzke K. (NED) - Jacobsen, Maria Pitz (NOR) 0-1, Gausdal Classics, Elo (9), Gausdal NOR, 2007.04.26
Andersen, Guttorm (NOR) - De Koster, Franzke K. (NED) 1-0, Gausdal Classics, Elo (8), Gausdal NOR, 2007.04.25
De Koster, Franzke K. (NED) - Hansson, Bo (SWE) 1-0, Gausdal Classics, Elo (7), Gausdal NOR, 2007.04.24
Carlsen, Ingrid Oen (NOR) - De Koster, Franzke K. (NED) 1-0, Gausdal Classics, Elo (6), Gausdal NOR, 2007.04.23
De Koster, Franzke K. (NED) - Johansen, Bjorn Berg (NOR) 0-1, Gausdal Classics, Elo (5), Gausdal NOR, 2007.04.22
Bue, Gunnar (NOR) - De Koster, Franzke K. (NED) 1-0, Gausdal Classics, Elo (4), Gausdal NOR, 2007.04.21
Kongerod, Rune (NOR) - De Koster, Franzke K. (NED) 1/2-1/2, Gausdal Classics, Elo (3), Gausdal NOR, 2007.04.20
De Koster, Franzke K. (NED) - Thingstad, Even (NOR) 0-1, Gausdal Classics, Elo (2), Gausdal NOR, 2007.04.19
De Koster, Franzke K. (NED) - Haug, Sverre A. (NOR) 0-1, Gausdal Classics, Elo (1), Gausdal NOR, 2007.04.18
Number of games: 29