Lance Lynn isn't pitching this game for Texas. That's a buy sign on Colorado especially with German Marquez taking the mound. 
Marquez tamed the Rangers when he faced them opening day limiting Texas to one run on two hits in 5 2/3 innings. But Lynn beat the Rockies that day, 1-0. Lynn also defeated the Rockies, 3-2 on Friday. 
Marquez has been solid all season not giving up more than two earned runs during any of his four starts. He has a 2.08 ERA and knows how to pitch at Coors Field. 
The same can't be said for Kyle Gibson, who is scheduled to make the start here for Texas. Gibson is 4-11 with a 5.40 ERA and 1.59 WHIP in 20 career interleague starts. This horrible mark doesn't include any games at Coors Fields either. This is the first time Gibson will pitch at the best hitting park in the majors. 
Gibson surrendered four runs on nine hits in 4 1/3 innings against the Mariners during his last start five days ago. The Mariners rank 26th in scoring averaging fewer than four runs per game. The Rockies lead the majors in runs scored at 5.5. They also are No. 1 in batting average. So Gibson is stepping way up in class. The Rangers by the way, rank 28th in runs at 3.6.  
The Rockies are 9-4 during their last 13 home games while the Rangers are 3-9 in their past 12 road contests.