Presented here are the top 10 runs created tallies for position players from weekend series, June 8-10. Players must appear in the 2012 Baseball America Prospect Handbook.

• Logan Schafer carries a .417 on-base percentage (13-for-33 with two walks) through 10 June games with Triple-A Nashville (and a .344 mark on the season), a performance that the Brewers surely must be monitoring. Milwaukee center fielders have hit .243/.292/.350 this season.

• Mets Double-A center fielder Matt den Dekker is having one of the great under-the-radar seasons, batting .340/.397/.563 with eight homers in 238 at-bats for Binghamton. He leads the Eastern League in average, doubles (21), slugging, extra-base hits (33) and runs (47). He turns 25 in August and has no Triple-A experience, but he has tools that will play in the big leagues—namely defensive range, speed and more power than perhaps anyone realized.

• The only position player younger than 19-year-old Salem shortstop Xander Bogaerts in the high Class A Carolina League is Cheslor Cuthbert (by about a month and a half), but the difference in performance between the two players is stark. Cuthbert has slumped to a .619 OPS with Wilmington, while Bogaerts (fueled in part by a big weekend) has batted .292/.360/.489 with eight homers and 15 doubles in 219 at-bats.

• Few minor league shortstops have louder raw tools than the Astros' Jonathan Villar, who plays for Double-A Corpus Christi and has been experiencing positive results on balls in play of late. The 21-year-old has batted .315/.379/.419 (39-for-124) in his last 32 games with four homers, a double and 16 steals—though with 32 strikeouts. Villar leads the Texas League with 28 stolen bases.

• Reno leads the Pacific Coast League in runs scored (6.36 per game) by a wide margin, thanks to a very hitter-friendly home ballpark and the work of players like Triple-A rookies Adam Eaton (1.018 OPS), a center fielder, Ryan Wheeler (.960), a third baseman. They're two of four Aces regulars with an OPS in excess of .950 this season. The other two are second baseman/shortstop Jake Elmore (.998) and veteran first baseman Randy Ruiz (1.019). 

Top Performance By A Prospect-Eligible Player Outside His Team's Top 30

Cardinals low Class A Quad Cities third baseman Tyler Rahmatulla tied a Midwest League record yesterday by collecting six hits in a game at Burlington. A St. Louis 34th-round pick from UCLA last year, Rahmatulla went 6-for-6 with two homers, two doubles and seven RBIs on June 10. On the weekend the 22-year-old went 8-for-14 (.571) with a triple added to the aforementioned extra-base hit tally, a performance good for 7.0 runs created.

Rough Stretch

Triple-A Salt Lake third baseman Luis Jimenez went 1-for-12 with three whiffs and grounded into a double play. The 24-year-old Angels prospect now is batting .283/.305/.467 with five homers in 180 at-bats during his first season in Triple-A. Jimenez has solid power but he believes he can hit any pitch, as evidenced by his six walks in 46 games this season.

The Bill James-devised runs created metric (Wikipedia entry explains ’02 version) rewards batters for avoiding outs and reaching base safely (on-base percentage) and for accumulating total bases (slugging percentage), two factors that correlate strongly with run scoring, and for obvious reasons.