Washington Nationals hit four home runs in a row in 8th, beat San Diego Padres, 5-2 final in Petco Park...

Stephen Strasburg held the San Diego Padres to one run on six hits through seven innings in the series finale in Petco Park, and it was tied at 1-1 in the top of the eighth before Howie Kendrick, Trea Turner, Adam Eaton, and Anthony Rendon hit back-to-back-to-back-to-back blasts off Craig Stammen to blow it wide open, 5-2 final.

Strasburg vs the Padres: San Diego, CA-born, San Diego State University-educated, ‘09 No. 1 overall pick Stephen Strasburg took the mound in his home city this afternoon unbeaten in his last four starts, over which the right-hander had a 3.33 ERA, seven walks, 29 Ks, and a .202/.271/.277 line against in 27 IP.

On the season, Strasburg went up against the Padres with a (6-3) record in 13 starts, a 3.54 ERA, 23 walks, 104 Ks, and a .208/.269/.323 line against in 84 innings.

He took the mound with a 1-0 lead and tossed two scoreless on 23 pitches, working around a pop that should have been caught in the first and a leadoff single in the second.

Strasburg misplayed a swinging bunt by the opposing pitcher and gifted Luis Perdomo an infield single in the first at bat of the third, but completed a scoreless 11-pitch frame which left him at 34 pitches total after three.

Franmil Reyes singled on an 0-1 fastball from Strasburg with two down in the bottom of the fourth, took second on a wild pitch, and scored on a line drive to center field by Ian Kinsler that tied things up at 1-1.

Wil Myers reached on an error by Anthony Rendon to lead off the fifth, and Greg Garcia hit a one-out single, but Fernando Tatis, Jr. sent a grounder to short in the next at bat, starting an inning-ending 6-4-3 DP.

Strasburg retired the side in order in a 17-pitch sixth, and came back out for the seventh at 85 pitches and retired the side in order, striking out two in a 19-pitch frame that left him at 104 total.

Stephen Strasburg’s Line: 7.0 IP, 6 H, 1 R, 1 ER, 0 BB, 6 Ks, 104 P, 72 S, 11/2 GO/FO.

Perdomo starts vs Nats: San Diego decided to go with a starter-by-committee approach in the series finale in Petco Park, starting with right-hander Luis Perdomo, who’s come out of the bullpen 11 times this season before today, including last night, with a 4.08 ERA, 4.11 FIP, and a .217/.260/.406 line against in 17 ²⁄₃ IP.

Perdomo’s defense let him down in the top of the first, with Ian Kinsler dropping a weak pop off Trea Turner’s bat, on which the Nationals’ leadoff man got around to second base, and a groundout by Adam Eaton moved him to third before an RBI groundout by Anthony Rendon brought him in, 1-0.

Perdomo got the Padres through 3 ¹⁄₃ with just that one run allowed, before he was replaced on the mound by Robbie Erlin.

Luis Perdomo’s Line: 3.1 IP, 2 H, 1 R, 0 ER, 0 BB, 0 Ks, 31 P, 22 S, 5/2 GO/FO.

Rendon is Streaking: With a single in his third at bat against Padres’ left-hander Eric Lauer last night, Anthony Rendon extended his on-base streak to 24-straight games, over which he’s gone 29 for 86 (.337/.462/.640) with seven doubles, two triples, five homers, 20 walks, and 13 Ks in 106 plate appearances.

Rendon was 0 for 3 with an RBI groundout through six innings, however, putting the streak in serious jeopardy, but he got hold of an 0-1 sinker from Craig Stammen in the eighth and hit it out to center to extend his streak with the fourth of four straight home runs off of the former Nationals’ reliever.

BULLPEN ACTION: Robbie Erlin took over for the Padres with one out in the top of the fourth and got two quick outs to keep it a one-run game before San Diego tied it in the bottom of the inning.

Erlin tossed a scoreless fifth as well, then the Padres turned to Trey Wingenter in 1-1 game in the top of the sixth, and the right-hander struck out the side around a one-out walk.

Wingenter returned to the mound in the top of the seventh and retired the side in order to keep it tied.

Craig Stammen got the top of the eighth, and retired the first batter he faced, then served up four straight home runs, with Howie Kendrick (on a 2-2 knuckle curve), Trea Turner (on a 1-0 sinker), Adam Eaton (on a 1-0 sinker), and Anthony Rendon (on a — you guessed it, 1-0 sinker) all taking the reliever deep to make it a 5-1 game in the Nationals’ favor.

Kyle Barraclough got the bottom of the eighth for the Nationals and retired the side in order in a 22-pitch frame. Still 5-1 Nationals.

Miguel Diaz finished off the top of the eighth and came back out with a scoreless top of the ninth to keep it a four-run game.

Matt Grace took the ball in the ninth and gave up a leadoff single by Eric Hosmer, so Davey Martinez went to the pen for Javy Guerra. Hosmer scored on a groundout after moving to third on a fly to right, 5-2, and Guerra got out No. 3 from Ian Kinsler to end it. Ballgame.

Nationals now 30-35