ROUND ROCK 6, IOWA 5 (CLASS AAA)
Jay Jackson tied his worst inning -- and outing -- of the season, allowing four first-inning runs en route to his sixth loss. The right-hander hasn't won in five starts since returning to the rotation after a brief foray into the bullpen and Thursday he yielded a season high eight hits and lasted just four innings. His ERA rose above three points to 3.48 for the first time since starting the season with four earned runs allowed in his first 10 innings. Jackson added two singles at the plate.
Welington Castillo provided most of the offense for Iowa (36-31) with two hits and three RBI. He launched his seventh home run in the fourth inning and his ninth double in the fifth for his first multi-hit game since May 20. Seventeen of Castillo's 28 hits this season have been for extra-bases. He committed a throwing error, his fifth, in the third inning.
Two pitchers who started the year in the Chicago bullpen -- left-hander James Russell and right-hander Justin Berg -- combined for four scoreless innings of relief. Russell struck out four of the 12 batters he faced in 2 2/3 innings and Berg faced the minimum four batters in 1 1/3 innings.
MOBILE 12, TENNESSEE 6 (CLASS AA)
Like Jackson, Austin Bibens-Dirkx had his worst inning of the season, giving up five first-inning runs and seven total en route to an early exit. He threw 80 pitches but gave up a season high eight hits, including two home runs, and lasted just 3 1/3 innings. His ERA has climbed from 2.05 to 3.76 over his last three starts.
Marwin Gonzalez had his best game at the plate since being promoted to Tennessee (40-26) in early May. He collected a season high three hits to lead the team. He has gone five straight games without an error at shortstop after commiting one in four straight contests.
Tony Thomas collected two hits for his third two-hit game in his last five starts. He has a five-game hitting streak in which he's collected 11 RBI and six extra-base hits.
DUNEDIN 6, DAYTONA (HIGH-A)
Rafael Dolis opened the night with four scoreless innings, but gave up three runs in the fifth. Two of those runs came on a two-run home run, the second straight start he allowed a long-ball after previously going eight consecutive outings without doing so. He struck out five batters, one shy of his season high.
Dolis, whose 2.73 ERA ties him for third in the Florida State League, was still in line for the victory after the Cubs scored two runs in the bottom of the fifth, but David Patton allowed three runs in the eighth to hand Dunedin the victory.
Daytona (31-34) had four players finish with two hits -- Ryan Flaherty, Rebel Ridling, Kyler Burke and Mark Reed. Flaherty has a hit in 31 of his 36 games since being demoted from Tennessee and is batting .336 with a home run, 16 doubles and 21 RBI with Daytona.
Brett Jackson, the Cubs' first-round 2009 draft pick, was hitless for the first time in four games since the All-Star break, but drew two walks and scored two runs. He now has 41 base on balls this season, which places second in the league, and 44 runs scored (first). Jackson came into the night with eight hits in his last three games, including a 4-for-6 performance in which he hit for the cycle on Monday.
Junior Lake had a rough night at the plate and in the field, going 0-for-4 with three strikeouts and committing his 21st error (throw) at shortstop. He leads the Cubs' farm system in errors this season.
PEORIA (LOW-A) WAS IDLE
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