With Indianapolis trailing 2-1 in the bottom of the ninth, Pirates No. 14 prospect Alen Hanson hit a walk-off grand slam. Hanson went 3-for-5 on the night, and has hit safely in 14 of his past 15 games.
The rest of the best performances from top prospects on Monday:
• Phillies No. 2 prospect and No. 29 overall prospect Mickey Moniak continued his hot start with a 2-for-3 performance for Philadelphia's Gulf Coast League rookie affiliate in a 4-0 win over the GCL Blue Jays. The top overall pick in this year's Draft upped his batting average to .305 after 34 games.
• Padres No. 4 prospect and No. 100 overall prospect Josh Naylor went 3-for-4 with two RBIs in Class A Advanced Lake Elsinore's 8-7 win over Inland Empire. Since being traded from the Marlins to the Padres, Naylor is batting .304 with 17 RBIs in 16 games.
• Athletics No. 24 prospect Casey Meisner tossed 4 2/3 scoreless innings in relief to pick up the win in Class A Advanced Stockton's 2-1 California League victory over Visalia. The right-hander surrendered just one hit, walked none and struck out six. The performance was a welcome sign for Meisner, who entered the game with a 4.17 ERA.
• Blue Jays No. 6 prospect Jon Harris tossed 7 2/3 innings for Class A-Advanced Dunedin on Monday night, giving up one run on three hits while walking one and striking out five in a 4-1 win over Clearwater. The right-hander lowered his ERA to 2.96 since being promoted to Dunedin from Class A Lansing.
• Brewers No. 15 prospect Jacob Nottingham hit his ninth home run of the season in a 3-for-5 effort in Double-A Biloxi's 8-3 win over Jackson. He had been 2-for-11 going into the game.
• Cubs No. 16 prospect Jake Stinnett turned in a stellar performance for Class A Advanced Myrtle Beach of the Carolina League. The right-hander went seven innings, allowing one run on five hits, walking one and striking out six. He's allowed one earned run or fewer in three of his past four starts.
• Dodgers No. 16 prospect Imani Abdullah went five strong innings for Class A Great Lakes, giving up one run on two hits while walking one and striking out three in a 7-1 win over Lansing.
• Dodgers No. 30 prospect Trevor Oaks was brilliant in a complete-game victory for Triple-A Oklahoma City over El Paso. The right-hander gave up one run on three hits, striking out 11 without yielding a walk and didn't allow a hit until the seventh inning. In nine starts for Oklahoma City, he's posted a 3.03 ERA.
• Mets No. 5 prospect Brandon Nimmo had a big night at the plate, going 4-for-6 with a double in Triple-A Las Vegas' 12-8 loss to New Orleans. With the performance, Nimmo upped his batting average to .341. Over his last three games, the outfielder is batting .500 (8-for-16).
• Nationals No. 21 prospect Anderson Franco went 2-for-5 with a home run for Washington's GCL affiliate in an 8-0 win over the GCL Marlins. It was Franco's first home run in exactly one year -- his last round-tripper came on Aug. 15, 2015.
• Phillies No. 15 prospect Cole Stobbe had a game to remember for Philadelphia's GCL club, going 2-for-4 with his first professional home run in a 4-0 win over the GCL Blue Jays. Philadelphia's third-round selection in this year's Draft, Stobbe is starting to heat up at the plate, recording a hit in four straight games. The third baseman has raised his batting average from .234 to .259 in that span.
• Twins No. 16 prospect Adam Walker hit his International League-leading 24th home run of the season for Triple-A Rochester in a 10-4 win over Buffalo. Walker is looking to lead his league in home runs for the fourth time in his Minor League career. He led the Class A Midwest League with 27 homers in 2013, the Class A-Advanced Florida State League with 25 homers in 2014, and the Double-A Southern League with 31 homers last year.
• Twins No. 21 prospect Daniel Palka had a big night, going 2-for-4 with a double and a home run in Rochester's win over Buffalo. Palka is 4-for-7 with two home runs and four RBIs in his last two games, raising his batting average from .250 to .268 in 34 games since being promoted from Double-A Chattanooga.
• White Sox No. 27 prospect Corey Zangari hit two homers and drove in three for Rookie-level Great Falls in a 7-6 win over Ogden. It was Zangari's second multi-homer game as a pro, and first this season.