







Most likely, unless you are a Sabermetrician, the terms secondary average and runs created mean very little to you.Thus, many of the statistics hidden in the advanced statistics menus ofprobably do not make much sense to you. However, thanks to the power of the mighty Google, a little bit of personal knowledge on the subject matter, and a personal visit from the ghost of Bill James (strange considering James is alive and well mind you) -- here is a guide to each of the advanced offensive statistics in- estimates the number of runs a hitter contributes to his team. Takes into account many major offensive stat categories to come up with what is believed to be an accurate measure of an individuals offensive contribution.Aim is to measure a batterís raw power. The formula for this statistic is simple: Slugging percentage minus batting average. The final result is intended to measure how many extra bases a player averages each at bat. The max is 3, the minimum is 0. Look for an ISO between .240 and .300 for good power hitters.Or Secondary Average, is the sum of extra bases a player gains on walks, hits, stolen bases per at bat. This statistic seeks to evaluate the number of bases a player gains independent of batting average. It is believed to be more accurate than your batting average, as secondary average accounts for power, plate discipline and speed.A simple measure of how many at bats per home run a player hits.Walks per plate appearance.Walks to strikeout ratio.A measure of total bases acquired divided by the number of plate appearances.An estimate on the number of runs a player produces vs. an average player in the same number of outs.A stat developed to evaluate a playerís offensive contribution. A simple calculation is bases / outs. The stat is complex in that it takes into account walks, hits, HBP, caught stealing, stolen bases, and double plays.Measures the total number of productive outs divided by the total number of outs. A productive out occurs when a baserunner advances with the first out of an inning, a pitcher sacrifices with one out, or a baserunner is driven home with the second out of an inning.A simple calculation of slugging percentage times on-base percentage.Takes into account Total Bases, Home Runs, and RBIs per at-bat.An HEQ-O of 600 is generally considered an outstanding year at the plate. It is calculated by taking Total Bases, Walks, Stolen Bases, RBIs, and Runs into account.Takes into account both home runs and stolen bases. So obviously a player who is good at both will have a high Pwr Speed.This statistic measures your total bases per hit.Research indicates this is the original name for Isolated Power. Any other attempts to gather the actual meaning behind the statistic have been unfruitful.A statistic which tries to estimate the number of runs a team should have scored given offensive stats and the number of runs created and allowed. Base Runs is said to model the runs coring process better than any other run estimator.Calculated by dividing putouts and assists by the number of innings/games played at a defensive position. This stat is good when comparing players of the same position over many games, but isnít comparable for players in different positions. First basemen and catchers will have the highest RFs typically on a team.