public static string GetStandingDeltaClass(UserStandings standings)
        {
            int delta = standings.StandingDelta;

            if (delta > 0)
                return "uparrow";
            else if (delta < 0 && standings.PrevPosition > 0)
                return "downarrow";

            return string.Empty;
        }
        public static string GetStandingDelta(UserStandings standings)
        {
            if (standings.PrevPosition == 0)
                return "-";

            return standings.StandingDelta.ToString();
        }