Carlson among top prospect performers Monday

It was a perfect night for Rob Zastryzny.

Making his 12th Triple-A start, Zastryzny, the Cubs’ No. 21 prospect, tossed five perfect innings as Iowa shut out Omaha, 13-0. He struck out eight of the 15 hitters he faced and recorded his other seven outs via groundballs. The left-hander departed after throwing 69 pitches (45 strikes).

The victory improved the 24-year-old’s record and ERA to 5-3 and 4.37 for the I-Cubs, and he’s struck out 63 hitters in 70 innings. Prior to being promoted to Triple-A, Zastryzny posted a 4.28 ERA and a 42-20 strikeout-to-walk ratio over 54 2/3 innings (nine starts) for Double-A Tennessee.

Iowa’s bid for a combined perfect game came undone in the sixth inning when Omaha’s Ramon Torres delivered one-out single to third base. The I-Cubs’ staff ultimately yielded three hits while racking up 17 strikeouts in the game.

The rest of the best performances from top prospects Monday

• No. 36 overall prospect A.J. Reed notched his sixth multi-hit game since returning from the big leagues as Triple-A Fresno defeated Reno, 7-3. The Astros’ No. 2 prospect connected on his 15th home run and his 22nd double as part of a 3-for-4 performance, and he also recorded three RBIs.

• No. 50 overall prospect Hunter Renfroe (Padres’ No. 3) tallied three extra-base hits in his first three at-bats for Triple-A El Paso as part of a 3-for-5 night. The 24-year-old outfielder delivered his Pacific Coast League-leading 26th homer in the first inning and then followed with doubles in each of his next two trips of the plate, giving him 30 two-baggers for the season.

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