Arizona Diamondbacks vs Houston Astros Predictions
Sunday, September 6, 2026 at 2:10pm EST
Astros
73-70Professional Picks On This Game
Diamondbacks vs. Astros Prediction: Rodriguez Gives Arizona the Edge, but Pass at -110
Analysis updated September 6, 2026 at 5:10 AM CDT
Arizona has the stronger probable starter by season ERA. Houston’s recent pitching results keep the betting case close.
Rodriguez gives Arizona a narrow edge
Eduardo Rodriguez’s 2.59 ERA gives Arizona the starting-pitching edge over Peter Lambert’s 3.66 entering Sunday’s series decider in Houston. FOX Sports / Associated Press lists both as probable starters. With SPF pricing each team at -110, Rodriguez makes the Diamondbacks the slight winner pick.
The gap is smaller by WHIP: Rodriguez sits at 1.22 and Lambert at 1.24. That makes the ERA difference less persuasive as a reason to pay a price requiring roughly a 52.4% win rate to break even.
Recent results temper the betting case
The same report has Houston at 7-3 over its last 10 games, with a 2.40 team ERA and a plus-11 run differential. Arizona is 5-5 with a 3.27 ERA and a minus-5 differential. Houston’s recent pitching success is a reason to pass on the moneyline despite Arizona’s probable-starter advantage.
SPF’s total is 7.5, with over -115 and under -105. Both clubs have hit .211 over their last 10 games, which points toward the under, but batting average alone doesn't establish likely run production. With starting pitchers still listed as probable and lineups unconfirmed, the total is also a pass.