Tags: Horse Rider.
Martina (Tineke) Maria Anna Antonia Bartels-de Vries (born February 6 1951 in Eindhoven Noord-Brabant) is an equestrian from The Netherlands who won the silver medal in the Team Dressage Event at the 1992 Summer Olympics in Barcelona Spain. She did so alongside Annemarie Sanders Ellen Bontje and Anky van Grunsven. In the Individual Competition she finished in fifteenth position.