team_results:
  id
  competition_id
  nation_id
  rank
  total


team_jumper_results:
  id
  jumper_id
  team_result_id
  jump1
  points1
  jump2
  points2


class TeamResult
  belongs_to :competition
  belongs_to :nation
  has_many :jumper_results, :foreign_key => "team_result_id"
end

class JumperResult
  belongs_to :team_result, :foreign_key => "team_result_id"
  belongs_to :jumper, :class_name => "Member", :foreign_key => "jumper_id"
end