I call malarkey on that one. I see 3 unders that are worth betting on.
Texas/Detroit UNDER 10 -105 : Yeah game time temperature will be 105 degrees but things will cool down at the plate. Yu Darvish should be his usual self, giving up 3 runs max, and the Rangers bullpen will do the rest. Rangers bats are cold right now, they are 4 for 37 with runners in scoring position the last 4 games, this funk is in their heads right now and will continue tonight.
LA Angels/Baltimore UNDER 8.5 -110 : This has 3-2 game written all over it. Both starting pitchers are pitching very well right now, Angels will be in the usual funk teams are in after flying across the country. I expect both offenses to look rusty.
Washington/Colorado UNDER 10.5 -105 : Both starters are good enough I think to limit the damage. Fredrich has been good enough lately and pitched well vs. Texas his last time out, Gio has been good all season too. As long as they can both go 7 and keep the bullpens out of this game, I see an under here. If not, at least one of these pitchers will throw a good enough game to keep the under down by themselves.