Long Island native Steven Matz struck out eight in five innings, and Mets Triple-A affiliate Las Vegas engineered a two-out run in the 10th inning to beat Salt Lake, 4-3, on Tuesday.

Shortstop Matt Reynolds walked with two outs in the 10th and scored the go-ahead run on leftfielder Alex Castellanos' single to third. Salt Lake third baseman Kaleb Cowart's throwing error on the play allowed Reynolds to score and Castellanos to advance to second.

Matz, the Mets' top pitching prospect who was born in Stony Brook and attended Ward Melville High School, allowed five hits and three runs, two earned, in his five innings. He threw 58 of his 83 pitches for strikes. Matz (7-4, 2.19 ERA) is on a pitch count as he likely nears a call-up to the major leagues. He is polished and is thought to be ready to pitch for the Mets by most evaluators.

But, on Tuesday, the lefthander allowed a two-out home run in the second inning to Jeff Bandy. It was the sixth home run Matz has allowed this season - all of which have come in his last eight starts.

After Las Vegas scored three runs in the top of the fifth to give Matz a 3-2 lead, he allowed Salt Lake to tie the score with two outs on Cowart's single and Gary Brown's RBI double. Matz struck out Ryan Jackson swinging to end his night.

Rightfielder Travis Taijeron was 2-for-3 with a double, and second baseman Wilfredo Tovar and third baseman T.J. Rivera each went 2-for-5 for the 51s (41-31, 1st place in Pacific Coast League Pacific Southern).

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DOUBLE-A BINGHAMTON

(37-32, 2nd place in Eastern League Eastern, 2 games back)

First baseman Brock Peterson was 2-for-4 with a home run, and centerfielder Brandon Nimmo and second baseman L.J. Mazzilli were each 2-for-4 as the Mets beat Harrisburg, 6-5. Shortstop Gavin Cecchini was 1-for-2 with a walk. Leftfielder Michael Conforto, the Mets' top pick in the 2014 draft, was 0-for-3 with a walk, extending his streak of reaching base via a hit or walk to all 21 of his games with Binghamton. Conforto is batting .364 with a .467 on-base percentage and 12 extra-base hits at Double-A.

SINGLE-A ADVANCED ST. LUCIE

(35-34, 3rd place in Florida State League South, 10 games back)

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Righthander John Gant (2-0, 2.23 ERA) struck out five in seven innings, allowing four hits and two walks in the Mets' 9-0 win over Jupiter. Third baseman Jeff McNeil was 2-for-4 with a double, walk and stolen base, first baseman Dominic Smith went 2-for-5 with a double and centerfielder Champ Stuart was 2-for-4 with a triple.

SINGLE-A SAVANNAH

(39-31, 1st place in South Atlantic League Southern)

Savannah was off.

SINGLE-A SHORT SEASON BROOKLYN

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(3-2, 2nd place in New York-Penn League McNamara, 1 game back)

Rightfielder Michael Bernal was 1-for-4 with a home run, second baseman Vincent Siena went 2-for-3 with a walk and third baseman Pedro Perez was 2-for-4, but the Cyclones fell to Tri-City, 11-4.

ROOKIE - DOMINICAN SUMMER LEAGUE METS 1

(10-11, T-4th place in DSL Boca Chica South, 6 games back)

First baseman Hanser Ortiz tied the score with a bases-loaded sacrifice fly with one out in the bottom of the ninth, but the Mets fell to the DSL Yankees 1, 8-7, in 11 innings. The Mets loaded the bases on three consecutive two-out walks in the bottom of the 10th but third baseman Domingo Martinez flew out to strand the runners. Centerfielder Anthony Dirocie was 3-for-4 with two doubles and a walk and rightfielder Wagner Lagrange went 3-for-5 with a walk.

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ROOKIE - DOMINICAN SUMMER LEAGUE METS 2

(14-7, 3rd place in DSL Boca Chica North, 4 games back)

Righthander Luis De Los Santos struck out five in five scoreless innings, allowing three hits, and left with the lead, but the DSL Pirates scored five times in the eighth inning en route to a 5-4 win. With second baseman Angel Manzanarez (2-for-4) at the plate and two outs, centerfielder Ysidro Pierre, the potential tying run, was thrown out trying to steal third to end the game. Pierre had also been thrown out trying to steal second base with two outs in the seventh inning. Shortstop Pedro Ventura was 2-for-3 with a walk.

ROOKIE - GULF COAST LEAGUE METS

(0-2, 4th place in Gulf Coast League East, 2 games back)

Righthander Jenrry Mejia, making his first appearance since he was suspended 50 games for using a performance-enhancing drug, struck out the side and allowed two hits in a scoreless inning of relief during the Mets' 7-5 loss to the GCL Marlins. First baseman Victor Moscote was 3-for-5.

ROOKIE - KINGSPORT

(1-0, T-1st place in Appalachian League West)

Leftfielder Arnaldo Berrios was 2-for-4 and rightfielder Hengelbert Rojas was 1-for-3 with a walk, but the Mets lost to Johnson City, 4-3, in 10 innings.