Each week we run our "Top Performers" series, looking at the best pitchers and hitters from the previous week. This year we will also be recapping each month in order to award the Pitcher and Player of the month. Below are the top Runs Created* totals in the Pittsburgh Pirates' farm system from the month of April. The rankings include every hitter who had an at-bat for a Pirates' minor league affiliate, not including DSL teams, and with no limitations on whether the hitter has prospect eligibility. Players who spent time at different levels are counted multiple times, once for each level, rather than combining their stats.

*Runs Created is a stat created by Bill James used to estimate how many runs an individual contributes to his team. There are many formulas for runs created. For thes...

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