# Corsi (SAT) Calculator (Hockey)

LAST UPDATE: September 24th, 2020

## Corsi Calculator

Corsi is the total number of shot attempts (shots, missed shots, and blocked shots). It is also known as “SAT” or “Shot Attempts.”

“Corsi” has 3 main statistics:

• “Corsi” (Corsi +/-, C+/- or SAT+/-): The total number of offensive shot attempts minus the total number of defensive shot attempts.
• “Corsi For %” (CF% or SAT For %): The percentage of all the total shot attempts produced team and their opponents. A CF% of more than 50% means that the team produced more shot attempts than their opponent.
• “Relative Corsi” (CF% Rel or SAT% Rel): Shows the relative effect of a player on the ice. A positive CF% Rel means that when the player is on the ice, the team’s CF% is higher than when the player is not on the ice.

Corsi is similar to Fenwick (USAT). The difference is that Fenwick does not include blocked shots in its calculation.

## Formula – How to calculate Corsi

• CF (SAT For) = Shots on Target For + Missed Shots For + Blocked Shots For
• CA (SAT Against) = Shots on Target Against + Missed Shots Against + Blocked Shots Against
• Corsi (also known as C+/- or SAT +/-) = CF – CA
• CF% (SAT For %) = CF ÷ (CF + CA) x 100%
• CF% Rel. = CF% with the player on the ice – CF% with the player off the ice
• All stats are taken from even strength, 5 on 5 play.
• “Shot” – An action that moves the puck towards the net that is either stopped by the goalie or is a goal.
• “Blocked shot” – An action that moves the puck towards the net that is blocked by a non-goalie player.
• “Missed shot” – An action that moves the puck towards the net that misses the net or hits the goalpost.
• “For” – An offensive action.
• “Against” – A defensive action.

## Example

A team and player have the following stats:

• For – entire team (5 on 5 play) – Shots: 1,091 – Missed Shots: 417 – Blocked Shots: 182
• Against – entire team (5 on 5 play) – Shots: 918 – Missed Shots: 422 – Blocked Shots: 111
• For – Team when player on ice (5 on 5 play) – Shots: 143 – Missed Shots: 53 – Blocked Shots: 22
• Against – Team when player on ice (5 on 5 play) – Shots: 122 – Missed Shots: 42 – Blocked Shots: 15

… then the statistics when the player is off ice would be:

• For – player off ice (5 on 5 play) – Shots: 948 – Missed Shots: 364 – Blocked Shots: 160
• Against – player off ice (5 on 5 play) – Shots: 796 – Missed Shots: 380 – Blocked Shots: 96

… and the Corsi numbers would be:

• Team Corsi For (CF or SAT For) = 1,091 + 417 + 182 = 1,690
• Team Corsi Against (CA or SAT Against) =918 + 422 + 111 = 1,451
• Team Corsi (C+/- or Sat +/-) = 239
• Team Corsi For Percentage (CF% or SAT for %) = 1,690 / (1,690 + 1,451) = 1,690 / 3,141 = 0.5380, or 53.80%
• Player Off Ice Corsi For (CF or SAT For) =948 + 364 + 160 = 1,472
• Player Off Ice Corsi Against (CA or SAT Against) = 796 + 380 + 96 = 1,272
• Player Off Ice Corsi (C+/- or Sat +/-) = 200
• Player Off Ice Corsi For Percentage (CF% or SAT for %) = 1,472 / (1,472 + 1,272) = 1,472 / 2,744 = 0.5364, or 53.64%
• Player On Ice Corsi For (CF or SAT For) =143 + 53 + 22 = 218
• Player On Ice Corsi Against (CA or SAT Against) = 122 + 42 + 15 = 179
• Player On Ice Corsi (C+/- or Sat +/-) = 39
• Player On Ice Corsi For Percentage (CF% or SAT for %) = 218 / (218 + 179) = 218 / 397 = 0.5491, or 54.91%
• Player Relative Corsi For = 54.91% – 53.64% = 1.27%