Hoskins among top prospect performers Saturday

Peter O’Brien’s monstrous week continued Thursday as he hit a first-inning grand slam and went 2-for-4 at the plate for Triple-A Reno in their 14-13 loss to Salt Lake.

The grand slam was O’Brien’s second in his past four games and comes one day after he hit a pair of home runs against Las Vegas. The D-backs’ No. 7 prospect has gone deep 16 times in 47 games, giving him a share of the Minor League lead.

O’Brien, 25, has been one of the top run producers in the Minors this season, hitting .325/.348/.670 with 48 RBIs for the Aces, and he’s been especially hot during his current six-game hitting streak, with a .444 average, four home runs and 17 RBIs in that span.

The rest of the best performances from top prospects Saturday:

• No. 1 overall prospect Lucas Giolito had a shaky first inning for Double-A Harrisburg as he allowed one run on three hits and one walk and pitched his was out of a bases-loaded jam. The Nationals’ No. 1 prospect was dominant after that, however, as he allowed just four hits over his final five frames to pace the Senators in a 3-1 win over Richmond. Giolito recorded a season-high eight strikeouts in the outing, with 66 of his 88 pitches going for strikes. Overall, he’s pitched to a 2.98 ERA in 54 1/3 innings over 11 starts, 10 of which have seen him allow two or fewer earned runs.

• No. 16 overall prospect Austin Meadows extended his hitting and triples streaks to 13 and four, respectively, in Double-A Altoona’s loss to Binghamton. After finishing 1-for-3 at the plate, he’s hitting .458 (22-for-48) with eight multi-hit performances during his streak, and six of his Eastern League-leading eight triples have come in that span. The Pirates’ No. 2 prospect is off to a strong start in his first full Double-A campaign, slashing .298/.362/.521 with 17 extra-base hits through 34 games for the Curve.

• No. 75 overall prospect Willy Adames’ (Rays’ No. 3) seventh home run was a game-winner as he connected on a two-run shot in the top of the ninth inning to help Double-A Montgomery edge Jacksonville, 3-1. The 20-year-old shortstop is hitting .284/.388/.511 this season for the Biscuits, and he’s now one homer shy of matching his career high (eight), which he achieved over 125 games in 2014.

• Angels’ No. 16 prospect Brandon Sanger hit a pair of solo home runs in Class-A …

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