Here's MLB Pipeline's roundup of the top prospect performances in the Minor Leagues on Wednesday.
It was a milestone moment in a monumental season for Vladimir Guerrero Jr., the No. 1 prospect in baseball according to MLB Pipeline, as the 19-year-old third baseman went 3-for-4 with a double and his first Triple-A home run in Buffalo's 6-1 victory over Gwinnett.
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Guerrero has hit at every level in the Blue Jays system, and in eight games since his promotion to Triple-A, he's batting .455 (10-for-22) with two doubles and the home run he hit Wednesday. The son of newly-inducted Hall of Famer Vladimir Guerrero, he leads a very talented crop of prospects in Toronto's system, many of whom are sons of former big leaguers.
One of those prospects is Cavan Biggio, son of Hall of Famer Craig Biggio. The 23-year-old second baseman, ranked as Toronto's No. 9 prospect, launched a solo homer for his 24th of the season in Double-A New Hampshire's 13-6 loss to Bowie. Biggio is slashing .260/.403/.537 in 106 games this season.
Blue Jays No. 2 prospect Bo Bichette, son of former MLB outfielder Dante Bichette and the No. 9 prospect overall, added two singles in a 2-for-5 effort.

MILB Video - Title: Vlad Jr. hits his 1st Triple-A homer - Url: http://www.milb.com/r/video?content_id=2363036883

Other top prospect performances Wednesday
• White Sox top prospect and No. 3 overall in baseball, Eloy Jimenez, launched his 19th homer of the season, and ninth in 30 games with Triple-A Charlotte, during the club's rain-suspended game against Syracuse. Entering the game, he was hitting .376/.425/.679 since his promotion to Triple-A.

MILB Video - Title: Eloy goes deep - Url: http://www.milb.com/r/video?content_id=2363056683

• A trio of Nationals prospects turned in strong performances Wednesday. No. 1 prospect Victor Robles (No. 5 overall) was 2-for-2 with a double and a steal in Triple-A Syracuse's rain-suspended game vs. Charlotte. Entering the contest, Robles was hitting .263 (15-for-57) with a double, homer and eight steals in 15 Triple-A games.
No. 3 prospect Luis Garcia -- the No. 92 overall prospect -- was 2-for-3 with a solo homer in Class A Advanced Potomac's 7-2 win over Frederick. The 18-year-old third baseman is eight for his last 13, and is hitting .322/.352/.470 with three homers in 27 games since being promoted to Potomac earlier this season.
And at Double-A Harrisburg, Daniel Johnson (Washington's No. 8 prospect) turned in a 2-for-4 performance with a solo homer in a 5-2 loss to Hartford. The 23-year-old center fielder is slashing .281/.341/.399 with 18 steals in 65 Double-A games.
• The Giants also had a trio of prospects with solid performances Wednesday. No. 11 prospect Heath Quinn went 2-for-4 with a three-run homer in Class A Advanced San Jose's 8-4 victory over Rancho Cucamonga. On the season, the left fielder is hitting .297/.378/.482 with 11 home runs in 75 games.
In the same game, Giants No. 24 prospect Jalen Miller was 3-for-4 with his 13th homer of the season, a solo shot in the seventh inning. The second baseman is slashing .276/.321/.445 in 104 games for San Jose this season.
San Francisco's No. 25 prospect, middle infielder Ryan Howard, went 3-for-4 with a double and a triple in Double-A Richmond's 5-1 win over Binghamton. Howard is hitting .272/.340/.389 in 93 games this season.
• Phillies No. 24 prospect Connor Seabold tossed seven strong innings during Double-A Reading's 6-1 victory over Akron, yielding one run on four hits, walking two and fanning eight. The 22-year-old right-hander has given up three runs in 18 innings over his past three outings (1.50 ERA) following a rough start to the year -- he had an 8.74 ERA as of July 20.
• A pair of Reds prospects shined Wednesday, as TJ Friedl (No. 15) went 2-for-4 with a solo homer for Double-A Pensacola, and Alfredo Rodriguez (No. 23) went 3-for-4 with a homer and four RBIs for Class A Advanced Daytona.

MILB Video - Title: Watch: Friedl goes yard - Url: http://www.milb.com/r/video?content_id=2363458283

Since being promoted to Double-A, Friedl is slashing .292/.383/.392 in 44 games. Over his last four games, the 22-year-old left fielder is 6-for-16 (.375). Meanwhile, Rodriguez, a 24-year-old shortstop, is hitting .222/.288/.389 with two homers in 14 games since being promoted to Pensacola.
• Red Sox No. 28 prospect Pedro Castellanos had a big night for Class A Greenville, going 4-for-4 with his first homer of the season, a two-run shot in a 7-1 win over Columbia. Over his last eight games, the 20-year-old first baseman is batting .516 (16-for-31). On the season, he's slashing .300/.332/.387.

MILB Video - Title: Watch: Castellanos crushed 2-run shot - Url: http://www.milb.com/r/video?content_id=2363635483

• Tigers No. 8 prospect Daz Cameron had a huge game for Double-A Erie, going 4-for-6 with three doubles and four RBIs in an 18-1 rout of Portland. The 21-year-old center fielder is slashing .316/.393/.523 with five homers and 12 steals in 46 Double-A games since his promotion from Class A Advanced Lakeland.

MILB Video - Title: Cameron knocks 3rd double - Url: http://www.milb.com/r/video?content_id=2363602083

• Erik Swanson, the Yankees' No. 23 prospect, tossed seven scoreless innings in Triple-A Scranton/Wilkes-Barre's 1-0 loss to Norfolk. The right-hander gave up five hits, walked one and struck out seven. In 10 appearances (nine starts) at Triple-A this season, Swanson has a 4.41 ERA, though outside a rough start on Aug. 1, in which he surrendered six runs over 4 1/3 innings, his ERA is 3.62.