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Apr 1 2012: Sonja Klein places 11th at the Women Master 35-99 Race at the Madera County Stage Race - Road Race in a group sprint
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Mar 10 2012: Sonja Klein places 12th at the Women Master 35-99 Race at the Madera County Stage Race - Time Trial
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Mar 10 2012: Sonja Klein places 2nd at the Women Master 35-99 Race at the Madera County Stage Race - Crit