FirstNonNull.cs

return new Func<string>[]
{
    Win,
    Advantage,
    ScoreNormal,
    ScorePerson1,
    ScorePerson2,
    ScoreTie
}.FirstNonNull();

public static T FirstNonNull<T>(this IEnumerable<Func<T>> methods)
{
  return methods.Select(x => x()).First(x => x != null);
}