"I was trusting my fastball and changeup and curveball. It was just one of those nights," Kaminsky told MiLB.com after Tuesday's start. "I threw a lot of pitches for strikes and my defense played great behind me, so everything panned out."
2015 third-round pick Harrison Bader also impressed Tuesday, clubbing two homers as part of a 2-for-4, three-RBI debut for Rookie League State College. The Spikes couldn't muster any other production, however, and fell 5-3 to Staten Island.
Scouts projected Bader could become a capable power hitter after a strong junior season at the University of Florida, which included 17 homers and 66 RBIs. Bader was named to the College World Series All-Tournament team last week.
"The last time I played in a real game was last Sunday, so it's been a week and a day or so since I've played outside with live pitching," Bader told MiLB.com. "Two home runs in a game doesn't happen often, especially for me. You have to kind of enjoy the moment, but the most important part is it's a very long summer. There are going to be days like this and there are going to be days when I have rough patches. I just want to put together good at-bats whether I'm getting results or not."
The rest of the 10 best performances from top Minor Leaguers
• Athletics No. 3 prospect Matt Chapman continued a scorching run for Class A Advanced Stockton, smacking his fourth homer in eight games as the Ports fell to San Jose, 6-3. Chapman, 22, has collected one hit in eight straight contests and has 12 home runs and 31 RBIs this season. The 2014 first-round pick already has set new career-highs in both categories, despite playing in eight more games last season. This is his first year in Advanced ball and he played a large role in Stockton's third-place California League finish in the first half of the season.
• Indians No. 7 prospect Francisco Mejia and No. 10 prospect Bobby Bradley led Class A Lake County to a 12-1 blowout win over West Michigan. Mejia went 2-for-5 with a three-run homer, while Bradley added a 2-for-5 performance with a solo shot and two RBIs. Both prospects have been with the Captains all season, leading them to a 38-36 record. Bradley has been especially strong this year, hitting .265/.360/.530 with 13 homers and 42 RBIs on the season.
• Mariners No. 1 prospect (No. 22 overall) Alex Jackson finally broke through on Tuesday night. Playing for Class A Short Season Everett, he connected on his first homer of the year, a two-run shot that provided the winning margin in the AquaSox's 5-3 triumph over Boise. Still just 19 years old, the 2014 No. 6 overall pick is looking to find his groove in the pro game. He began the season with Class A Clinton, where he hit .157/.240/.213 with six doubles and 13 RBIs before being reassigned to extended Spring Training with shoulder pain in mid-May. Two weeks ago, he began his current stint with Everett and is batting .282 in 11 games for the team.
• Rays No. 17 prospect Justin Williams registered the fourth five-hit game in Class A Bowling Green's history. The right fielder went 5-for-5 against Fort Wayne, the first time a Hot Rod has collected five hits since Jake Hager did on June 29, 2012. Williams has been on an absolute tear over the past three games. He's hitting .714 (10-for-14) in that span with a double and three RBIs. The 19-year-old has flashed some good power this year, too. He currently has 15 doubles, six homers and 29 RBIs in 2015. The five hits represent a new career-high for Williams.
• Red Sox No. 2 prospect (No. 14 overall) Henry Owens had a no-hitter broken up the seventh inning for Triple-A Pawtucket. Despite the late disappointment, the 6-foot-6 southpaw went a season-high 7 1/3 innings while giving up two hits, one earned run and two free passes against four strikeouts. He still has not won since May 5 -- a span of 12 starts -- but his ERA is 3.28.
• Royals No. 9 prospect Jorge Bonifacio won MVP honors after leading the North to a 9-4 victory over the South in the Texas League All-Star Game. With the contest tied 4-4 in the eighth inning, Bonifacio launched a two-run shot off of Padres No. 9 prospect Tayron Guerrero to give the North a lead it did not relinquish. The Double-A Northwest Arkansas right fielder even added a sacrifice fly in the ninth to extend the lead, finishing 1-for-4 with three RBIs on the night. The 22-year-old has broken out as a power hitter this year with 13 homers and 42 RBIs in 68 games. His previous high was 10 home runs in 2012 and he's well on his way to topping the 61 RBIs he picked up that year, too.
• Yankees No. 2 prospect (No. 56 overall) Aaron Judge notched his first career four-hit game. The Triple-A Scranton/Wilkes-Barre outfielder went 4-for-4 with a double and a walk. Judge also scored three runs in the team's 12-8 loss. Tuesday's standout performance was his first multi-hit game in eight contests for Scranton/Wilkes Barre and his average jumped from .160 to .276 after the four-hit night. Judge has a ways to go before he duplicates the success he had at Double-A Trenton -- he produced a .284/.350/.516 line with 12 homers and 44 RBIs in 63 games -- but Tuesday suggested that he's getting used to Triple-A pitching.