[Table] header: Year | Men's singles | Women's singles | Men's doubles | Women's doubles | Mixed doubles row 1 : 1986 | Armand Jehle | Cornelia Marxer | Armand Jehle Markus Becker | Cornelia Marxer Astrid Wanger | Lothar Iser Astrid Wanger
row 2 : 1987 | Armand Jehle | Cornelia Marxer | Armand Jehle Markus Becker | Cornelia Marxer Astrid Wanger | Lothar Iser Astrid Wanger
row 3 : 1988 | Armand Jehle | Cornelia Marxer | Guenther Schaedler Mario Minder | Cornelia Marxer Astrid Wanger | Mario Minder Astrid Wanger
row 4 : 1989 | Mario Minder | Astrid Wanger | Guenther Schaedler Mario Minder | Cornelia Marxer Astrid Wanger | Mario Minder Astrid Wanger
row 5 : 1990 | Mario Minder | Myriam Eisensohn | Ernst Bolkart Roland Hilti | no competition | Mario Minder Astrid Wanger
row 6 : 1991 | Armand Jehle | Astrid Eidenbenz | no competition | no competition | no competition
row 7 : 1992 | Armand Jehle | Nadine Velten | Guenther Schaedler Thomas Fischer | Andrea Fischer Silvia Baur | Thomas Fischer Andrea Fischer
row 8 : 1993 | Michel Baumgartner | Nadine Velten | no competition | no competition | no competition
row 9 : 1994 | Gunther Schadler | Nadine Velten | Lothar Iser Edi Niedhart | Michaela Ritter Nadine Velten | Roger Jacquat Patrizia Wang
row 10 : 1995 | Andreas Radl | Claudia Jehle | Lothar Iser Ralf Is | Karin Lehmann Birgit Oehri | Andreas Radl Karin Lehmann
row 11 : 1996 | Guenther Schaedler | Astrid Eidenbenz | Andreas Radl Sandro Woodtli | Daniela Kressig Vreni Alther | Sandro Woodtli Georgia Timmermann
row 12 : 1997 | Armand Jehle | Anja Buechel | Kilian Pfister Roger Jacquat | Anja Buchel Michaela Ritter | Roger Jacquat Patrizia Wang
row 13 : 1998 | Armand Jehle | Astrid Eidenbenz | Kilian Pfister Frank Kamsma | no competition | no competition
row 14 : 1999 | Guenther Schaedler | Bettina Kaiser | Kilian Pfister Frank Kamsma | Bettina Kaiser Claudia Jehle | Kilian Pfister Bettina Kaiser
row 15 : 2000 | Kilian Pfister | Michaela Ritter | Kilian Pfister Frank Kamsma | Claudia Jehle Caroline Schneider | Kilian Pfister Caroline Schneider
row 16 : 2001 | Armand Jehle | Michaela Ritter | Armand Jehle Bruno Staeheli | Claudia Jehle Caroline Schneider | Kilian Pfister Caroline Schneider
row 17 : 2002 | Kilian Pfister | Claudia Jehle | Kilian Pfister Walter Sturm | Astrid Eidenbenz Claudia Jehle | Kilian Pfister Nadia Gartmann
row 18 : 2003 | Andreas Radl | Michaela Ritter | Roland Hilti Zeno John | Michaela Ritter Doris DiMarzio | Zeno John Michaela Ritter
row 19 : 2004 | Kilian Pfister | Daniela Kressig | Andreas Radl Kilian Pfister | Claudia Jehle Carolin Schneider | Walter Sturm Carolin Schneider
row 20 : 2005 | Kilian Pfister | Daniela Litscher | Michael Litscher Roger Jacquat | Claudia Jehle Carolin Schneider | Kilian Pfister Doris DiMarzi
row 21 : 2006 | Kilian Pfister | no competition | Roland Hilti Kilian Pfister | Claudia Jehle Carolin Schneider | Kilian Pfister Doris DiMarzi
row 22 : 2007 | Kilian Pfister | no competition | Roland Hilti Kilian Pfister | no competition | Zeno John Carolin Schneider
row 23 : 2008 | Kilian Pfister | Nadia Gartmann | Roland Hilti Kilian Pfister | Nadia Gartmann Patricia Vögel | Kilian Pfister Silvie Brouwer
row 24 : 2009 | Roland Hilti | no competition | Armand Jehle Bruno Stäheli | no competition | Michael Litscher Nadia Gartmann
row 25 : 2010 | Roland Hilti | no competition | Michael Litscher Stanley Wee | Heather Booth Patrizia Vögel | Stanley Wee Heather Booth [/Table] Answer this question based on the above table: Women's singles of michaela ritter, and a Men's singles of andreas radl has what women's doubles?

Answer: Michaela Ritter Doris DiMarzio