Tanner Roark throws one too many: Giants hand Nationals fourth straight loss on Mac Williamson blast in 6th, 4-3 final...

Tanner Roark finished five innings on 95 pitches, and went back out for the sixth and got two quick outs on five pitches, but his sixth pitch of the inning, and 101st pitch overall in AT&T Park, was a hanging, first-pitch curveball to Giants’ left fielder Mac Williamson that went out over the center field wall to put San Francisco up for good, 4-3.

Washington’s second straight loss to the Giants was the fourth straight loss overall for the Nationals, who fell to 10-14 on the season.

Roark in AT&T: Tanner Roark started the night in AT&T Park (6-0) with a 2.02 ERA in seven regular season appearances against San Francisco in his career, and 4-0 with a 1.00 ERA over four starts vs the Giants, though he was winless in his last three outings overall this season, in spite of allowing two runs or fewer in two of the three turns in the rotation.

Roark didn’t get off to a great start tonight, however, giving up one and two-out singles and a base-loading walk in the first before uncorking a wild pitch to Evan Longoria that allowed the Giants’ first run of the game to come in, 1-0.

Note: Angel Hernandez’s zone was questionable from the start.

Brandon Belt got hold of a hanging 3-2 curve in the third, sending a two-out, two-run home run to right that put the Giants up 3-0 on the Nationals.

Michael A. Taylor tied it up at 3-3 in the top of the fourth, however, and Roark responded with a 10-pitch, 1-2-3 bottom of the inning that left him at 77 pitches total on the night.

An 18-pitch fifth, in which he worked around at two-out walk, pushed Roark up to 95 pitches and he came back out for the sixth and retired two on five pitches, but his sixth pitch of the inning, and his 101st pitch of the night was a hanging first-pitch curveball to Mac Williamson that ended up going over the center field wall for a go-ahead homer, 4-3 Giants.

Tanner Roark’s Line: 6.0 IP, 6 H, 4 R, 4 ER, 2 BB, 4 Ks, 2 HRs, 105 P, 66 S, 4/4 GO/FO.

First Look + vs LHPs: Giants’ starters entered the second game of three with the Nationals in AT&T with a combined 1.85 ERA over the last seven games and 43 ²⁄₃ IP, over which they had a .169 BAA.

Ty Blach was winless in his previous four outings before tonight’s start, with losses in three of the four, but he was going up against a team in the Nationals that had a .197/.290/.296 line vs left-handers early this season, which had them ranked 15th/12th/15th across the line amongst National League teams.

Blach had only faced two Nationals before tonight, Howie Kendrick (2 for 8), and Nats’ first baseman Matt Adams (0 for 3), who was not in the lineup. Blach worked around one single in three scoreless on 39 pitches to start, as the Giants jumped out to a 1-0 lead early.

It was 3-0 San Francisco after three, but a two-out walk to Ryan Zimmerman was followed by a single to right field by Moises Sierra, and a three-run home run to right by Michael A. Taylor, who took a 1-1 fastball from Blach out the other way for a game-tying blast, his 2nd home run of the season, 3-3.

Ty Blach’s Line: 5.0 IP, 4 H, 3 R, 3 ER, 2 BB, 3 Ks, 1 HR, 79 P, 47 S, 11/0 GO/FO.

MAT GOES Y-A-R-D!!: Michael A. Taylor continued to heat up with the homer off Ty Blach in the fourth. He started the night on a hot streak, going 8 for 24 (.333 AVG) with four doubles, a home run, six walks, and eight runs scored in the previous eight games, and added the 3-run opposite field home run in his second at bat of the night in AT&T Park.

Also, he’s pretty good with the glove:

Daily Bryce Harper section: Bryce Harper started the night in San Francisco with eight home runs on the season, the second-most in the majors, tied for the home run lead in National League. He also had a major league-leading 29 walks, and was ranked second overall in the NL in runs (20), tied for second in RBIs (19), in 3rd in SLG (.620), and OBP (.462).

Harper K’d swinging on a 1-2 fastball in his first career at bat against Ty Blach, and rolled over a 1-2 fastball the second time up, 0 for 2.

There were two on and two out when Harper stepped in for the third time against Blach, but he grounded out to second to end the inning, 0 for 3.

Sam Dyson walked Harper with a runner on second and one out in the eighth, 0 for 3, BB No. 30.

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LINK: Get the brand new Bryce Harper t-shirt from Breaking T here

BULLPEN ACTION: Reyes Moronta took over for the Giants in the sixth and gave up a one-out single, but erased it with an inning-ending 4-6-3. With the score 4-3 San Francisco in the seventh after a Mac Williamson blast off Tanner Roark, Moronta came back out to the mound and retired the side in order to preserve the lead.

Brandon Kintzler got the Giants’ half of the seventh, working around a two-out single and a walk in a 16-pitch frame.

Sam Dyson gave up a one-out double to left-center by Howie Kendrick, then walked Bryce Harper to set up a double play. Ryan Zimmerman obliged, hitting the first pitch he saw out to short to start an inning-ending 6-4-3.

Ryan Madson tossed a quick, 10-pitch, 1-2-3 eighth, and Hunter Strickland came on looking for his second save of the series in the ninth and retired the Nationals in order. Ballgame.

Final Score: 4-3 Giants

Nationals now 10-14