Basketball Terms Ipsum

3-point field goals (available since the 1979-80 season in the nba) blk blocks (available since the 1973-74 season in the nba) blk% block percentage (available since the 1973-74 season in the nba); the formula is 100 * (blk * (tm mp / 5)) / (mp * (opp fga - opp 3pa)). block percentage is an estimate of the percentage of opponent two-point field goal attempts blocked by the player while he was on the floor. fg% ft free throws free throw percentage; the formula is ft / fta. dean oliver's "four factors of basketball success"; please see the article four factors for more information. l opp offensive rebounds (available since the 1973-74 season in the nba) ows player efficiency rating (available since the 1951-52 season); per is a rating developed by espn.com columnist john hollinger. in john's words, "the per sums up all a player's positive accomplishments, subtracts the negative accomplishments, and returns a per-minute rating of a player's performance." please see the article calculating per for more information. also see vaa and var. stops; dean oliver's measure of individual defensive stops. please see dean's book for details. team tov% turnover percentage (available since the 1977-78 season in the nba); the formula is 100 * tov / (fga + 0.44 * fta + tov). turnover percentage is an estimate of turnovers per 100 plays. total rebound percentage (available since the 1970-71 season in the nba); the formula is 100 * (trb * (tm mp / 5)) / (mp * (tm trb + opp trb)). total rebound percentage is an estimate of the percentage of available rebounds a player grabbed while he was on the floor. tsa wins over .500; the formula is (w - l) / 2. pythagorean wins; the formula is g * (tm pts14 / (tm pts14 + opp pts14)). the formula was obtained by fitting a logistic regression model with log(tm pts / opp pts) as the explanatory variable. using this formula for all baa, nba, and aba seasons, the root mean-square error (rmse) is 3.14 wins. using an exponent of 16.5 (a common choice), the rmse is 3.48 wins. (note: an exponent of 10 is used for the wnba.) ws.