as if the player is assumed to be on base for himself when he hits home runs. Of course, this is impossible, and in reality, a great player is interacting with offensive players whose contributions are inferior to his. The 2002 version corrects this by placing the player in the context of his real-life team. This 2002 version also takes into account performance in "clutch" situations. A: B: C: where K is strikeout. The initial individual runs created estimate is then: If situational hitting information is available, the following should be added to the above total: where RISP is runners in scoring position, BA is batting average, HR is home run, and ROB is runners on base. The subscripts indicate the required condition for the formula. For example, means "hits while runners are in scoring position." This is then figured for every member of the team, and an estimate of total team runs scored is added up. The actual total of team runs scored is then divided by the estimated total team runs scored, yielding a ratio of real to estimated team runs scored. The above individual runs created estimate is then multiplied by this ratio, to yield a runs created estimate for the individual. Other expressions of runs created Weighted runs created plus Weighted runs created plus (wRC+) takes runs created and adjusts it to account for ballpark factors and the era a player played in. Runs created as a rate stat The same information provided by runs created can be expressed as a rate stat, rather than a raw number of runs contributed. This is usually expressed as runs created per some number of outs, e.g. (27 being the number of outs per team in a standard 9-inning baseball game). Accuracy Runs created is believed to be an accurate measure of an individual's offensive contribution because when used on whole teams, the formula normally closely approximates how many runs the team actually scores. Even the basic version of runs created usually predicts a team's run total within a 5% margin of error. Other, more advanced versions are even more accurate. Related statistics Win Shares is James' attempt to summarize, in one stat, a player's contributions on both offense and defense. See also Sabermetrics Base Runs Extrapolated Runs Runs produced References External links Career leaders in Runs Created Single-season leaders in Runs Created Runs Created leaders among active players