To compensate for a truncated version of top weekend performers, we're taking these lists to 15 or more places.

• Presented here are the top pitcher game scores from weekend series. Any prospect with a 70 or higher is displayed.

• Braves righthander Cody Martin threw an absolute gem for high Class A Lynchburg two weekends ago, throwing a two-hit shutout with 14 strikeouts. His two follow-up outings—14 runs, 20 baserunners in 7 2/3 innings—would not be classified as precious stones. The 22-year-old Martin turned in a worthy encore Sunday, holding Salem scoreless on one hit over seven innings.

• The 17-year-old Roberto Osuna struck out 13 of the 19 batters he faced in five shutout innings while making his debut with short-season Vancouver.

Noteworthy Performance In Short-Season League Play

Astros lefty Brian Holmes threw a seven-inning, one-hit shutout for short-season Tri-City, striking out six. The 13th-rounder from Wake Forest ranks second in the New York-Penn League with a .161 opponent average.

Worst Game Score By A Prospect

Lefthander Blair Walters had the poor fortune to make his Astros debut at home with high Class A Lancaster, whereupon he allowed nine runs on 10 hits in 2 1/3 innings against Lake Elsinore on Friday. One of two pitchers acquired by Houston in the Brett Myers trade with the White Sox, Walters had advanced to Winston-Salem of the Carolina League prior to the trade (7.01 ERA through five starts). Game score: -1.

• Presented here are the top runs created tallies from weekend series. Any prospect with more than 3.5 is displayed.

• Brewers left fielder Khris Davis has been on an absolute tear since returning to Double-A Huntsville on July 9, batting .456/.537/.842 (26-for-57) in 17 games with six homers and four doubles. The 24-year-old offers big league bat speed from the right side and at least fringe-average power, so he might carve out a role even if it's as a part-time left fielder or first baseman.

• The No. 3 overall pick in June, Mariners catcher Mike Zunino already has bashed six homers (to tie for third in the Northwest League) and batted .356/.465/.746 through his first 59 pro at-bats.

Noteworthy Performance In Short-Season League Play

Short-season Tri-City center fielder Andrew Aplin collected nine hits in 17 at-bats (.529) while striking his fourth homer of the season, drawing a walk and scoring four runs. The Astros fifth-rounder from Arizona State leads the Penn League in hitting (.374), stolen bases (17) and runs scored (30). He ranks second in on-base percentage (.472) and slugging (.573).

Rough Stretch

Orioles center fielder Xavier Avery struck out seven times while going 0-for-12 for Triple-A Norfolk over the weekend. The 22-year-old enjoyed a breakthrough first half, putting up an .803 OPS and earning his first callup to Baltimore, but it's been a different story since the all-star break. In that time Avery has gone 9-for-55 (.164) with two extra-base hits and one walk. Runs created: -1.9.

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).

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.