Relative Goals

Goals Created (GC)

(Player Goals + (.5 x Player Assists)) x (Team Goals/(Team Goals + (.5 x Team Assists)))

• Quantifies a players overall offensive performance relative to his teams performance, holding the value of a goal and assist constant across seasons

Goals Versus Threshold (GVT)​

(Goals x Goal Value) + ((Assists x Assists Value) - (Games Played x Contribution Threshold))

• Calculations separated by position, quantifies player offensive performance relative to league performance in a given season

  • Goal Value = (1.5 x League Goals)/(League Assists + 1.5 x League Goals)

  • Assist Value = (Goal Value/1.5)

  • Contribution Threshold = ((sum for all players (Goals x Goal Value + Assists x Assist Value))/(sum for all players (Games Played))) x .58

    • .58 ​represents the performance of a "threshold" player, similar to a replacement player in baseball, Alan Ryder's .58 threshold is used representing 58% of average performance as replacement level, though some (like Tom Awad) use .75

Marginal Goals

All Marginal Goal Stats (MGx)

(Player Goals Created) - ((7/12) x (Player Games Played) x ((Sum Goals Created) / (Sum Games Played))

• Isolates a players offensive production and compares it to the average production of a given level

  • This given level effects who is summed in the latter half of the equation, comparing a player's production to the following levels:​

    • MGl = Marginal Goals relative to league​

    • MGa = Marginal Goals relative to age

    • MGcl = Marginal Goals relative to class (divisional class, i.e. 1A or 2A)

    • MGs = Marginal Goals relative to section

    • MGy = Marginal Goals relative to year (i.e. Junior, Senior, etc.)

    • MGp = Marginal Goals relative to position

    • MGc = Marginal Goals relative to conference

Points Shares​​​

Offensive Point Shares (OPS)

(Player Marginal Goals [MGl])/(Marginal Goals per Point)

• Assigns value to player production relative to overall team performance in terms of standing points responsible for

  • Marginal Goals per Point = (sum league marginal goals)/(sum league standing points)​

Defensive Point Shares (DPS)​

(Player Marginal Goals Against)/(Marginal Goals per Point)

• Quantifies a player defensive performance relative to the league and assigns contribution in terms of standing points responsible for

  • Player Marginal Goals Against:

    • For MSHSL (no TOI, +/- data) = (Proportion of Weighted GP) x (5/7) x (Position Adjustment) x (Team Marginal Goals Against)

      • At this level, DPS is largely indicative of team rather than individual defensive performance​

    • For CHL/USHL/NAHL/NCAA = ​ (Proportion of Weighted GP) × (Proportion of Team Marginal Goals Against) × (Position Adjustment) × (Team Marginal Goals Against) + (+/- Adjustment)

      • Position Adjustment: For Forwards = 5/7 | For Defensemen = 10/7​

      • Proportion of Weighted Games Played = (Player Games Played*)/((Games Played by Forwards on Team + (2 x Games Played by Defensemen on Team)))

        • *2 x Player Games Played for defensemen​​

      • Proportion of Team Marginal Goals Against: ((7 - (2 × ((Team Shots Against Per Game) / (League Shots Against Per Game)))) / 7)

      • Team Marginal Goals Against = (1 + (7/12)) x (Team Games) x (League Goals Per Game)​ - (Team Goals Against)

      • +/- Adjustment: ​(1/7) × (Position adjustment) × ((+/-) - (GP) × ((Sum Team +/- by Position) / (Sum Team GP by Position)))

Total Point Shares (PS)​​​

• (Player Offensive Point Share) + (Player Defensive Point Share)

  • Total contribution to team by a player measured in standing points responsible for​

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