Presented here are the top 10 pitcher game scores from weekend series, May 11-13, by pitchers who appear in the 2012 Baseball America Prospect Handbook.

• Astros righthander Paul Clemens rebounded from a recent rough patch, commemorated with an appearance on the Prospect Not-So-Hot Sheet, to get back on track in Triple-A . . . and back on target for a callup to Houston later this season. He allowed just three singles in his Saturday start and retired the final 15 batters he faced. Nothing to worry about here: Clemens has gone 3-1, 1.57 with a 17-4 K-BB ratio in four home starts in Oklahoma City this year.

• One of the youngest pitchers in the Carolina League, 20-year-old Royals righty Yordano Ventura leads the league with 11.3 strikeouts per nine innings. He's been especially effective in his last two outings, striking out 12 in 13 innings while allowing three runs on 11 baserunners.

• The 36th pick in the draft last June, 19-year-old Red Sox lefty Henry Owens has not been scored upon during his past three starts for low Class A Greenville, a period covering 15 innings. He ranks second in the South Atlantic League with 47 strikeouts (and also second with 21 walks).

• Mariners lefty Danny Hultzen and Diamondbacks righty Trevor Bauer, the respective second and third overall picks in last year's draft, turned in arguably their finest starts of the season on Friday. Hultzen tossed seven shutout innings but struck out just two, while Bauer mastered his control with a season-best 9-to-1 strikeout-to-walk ratio as he allowed one run in seven innings.

• Marlins righthander Jose Fernandez continues to show pitchability well beyond his 19 years. The 2011 first-rounder has gone 3-0, 1.38 in his last four starts for low Class A Greensboro with a 27-4 K-BB ratio and 18 hits allowed in 26 innings. On the season, Fernandez leads the South Atlantic League with 52 strikeouts and 43 innings while ranking second in WHIP (0.86) and third in ERA (1.67).

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

A Padres 15th-round pick from Vanderbilt in 2006, righthander Matt Buschmann has logged 212 innings at the Triple-A level (albeit with a 7.02 ERA), but the 28-year-old finds himself back in Double-A to begin the season. He made the most of his situation Friday with Montgomery, dealing 6 2/3 shutout, one-hit innings against Chattanooga with 12 strikeouts and one walk. Buschmann struck out eight of the final 10 batters he faced, making good use of his sinker and slider. In whirlwind fashion, he finished last season with San Diego's Triple-A Tucson affiliate, pitched in the Mexican Pacific League, got selected by the Nationals in the minor league Rule 5 draft in December and, finally, made his way to the Rays in an April 16 cash transaction.

Worst Game Score By A Prospect

A pair of Double-A Eastern League starters had weekends to forget. Blue Jays righthander Deck McGuire retired only one batter for New Hampshire while allowing five runs on five hits (plus a walk) on Friday. He threw 34 pitches in what turned out to be an 11-4 Fisher Cats loss to Binghamton. New Hampshire exacted revenge on Mets lefty Darin Gorski on Saturday, battering him for nine runs on 10 hits (plus a walk) over four innings. The Fisher Cats got the rally started with four straight hits to begin the fifth inning.

Bill James' game score calculation (Wikipedia entry) rewards pitchers who work deep into games without allowing many runs or hits while providing extra credit for dominance (strikeouts) and control (few walks).