source_results = [
          result(points: 1, participant_id: 10, scores: [{ numeric_place: 5, date: Date.new(2012) }]),
          result(points: 10, participant_id: 20, scores: [{ numeric_place: 1, date: Date.new(2012) }]),
          result(points: 2, participant_id: 30, scores: [{ numeric_place: 3, date: Date.new(2011) }]),
          result(points: 2, participant_id: 30, scores: [{ numeric_place: 3, date: Date.new(2011) }]),