Turnover Ratio, aka turnover percentage, is the percentage of a team’s or player’s possessions that end in a turnover.
Turnover Ratio Formula=(Turnovers)*100)/ [(Field Goal Attempts)+(Free Throw Attempts*0.44)+(Assists)+(Turnovers)]
This statistic is an estimate of turnovers per 100 plays. Utilizing only box scores, we don’t know how many shots a player was fouled on, so the “0.44” multiplier estimates the number of possessions a player is involved in fouls resulted in &-ones.
Using turnover percentage, or rate, for individuals is a bit more complicated because if you wanted to do it by possessions you would have to calculate the number of possessions a player is on the floor. For those of you who use Hudl (high school) and Synergy (college), the analytics features embedded in these programs do this for you.
At the time of this post, here are the best and worst turnover percentages in college basketball:
On the men's side:
NCAA Division 1: (1st) Penn State (PA), 11.3% | (363rd ) Loyola of Chicago (IL), 21.2%.
NCAA Division 2: (1st) Winona State (CA), 11.0% | (293rd) Alaska -Fairbanks (AK), 22.2%.
NCAA Division 3: (1st) Nazareth College (NY), 11.0% | (413th) Mount Aloysius (PA), 24.1%
NAIA: (1st) Marian (IN), 11.3% | (238th) Wiley (TX), 29.7%.
On the women's side:
NCAA Division 1: (1st) Colorado State, 11.3% | (361st) USC Upstate (SC), 28.1%
NCAA Division 2: (1st) Northern State (SD), 13.6% | (303rd) Benedict College (SC) , 29.7% (only 8 games played)
NCAA Division 3: (1st) Scranton (PA), 13.0% | (429th) Maranatha Baptist (WI), 36.8% (only 6 games played)
NAIA: (first) Westmont (CA), 13.6% | (237th) LSU-Alexandria (LA), 32.7%
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