Arizona at San Diego

Arizona is 18-8 at home and just 6-10 on the road as its offense suffers when it's away from hitter-friendly Chase Field. The Diamondbacks have scored only 49 runs in 16 games away from home with a .608 OPS, both of which are last in the major leagues. Jered Weaver finally put together a good outing his last start, allowing just a run and five hits in six innings against the White Sox before the bullpen blew it for the Padres. Weaver also did not allow a homer for the first time this year. Taijuan Walker has lost his last two starts at Colorado and at home against Pittsburgh and he now has given up 10 runs (seven earned) on 20 hits his last 16 1/3 innings. Arizona has lost 28 of its last 41 road games against right-handed starters and five of its last seven meetings at San Diego overall. Back the Padres.