Dodgers vs Diamondbacks odds, prediction & picks August 9

The Dodgers (70-47) face the Arizona Diamondbacks (62-56) at Chase Field on Saturday, August 9, 2026, first pitch 20:10 UTC. On record alone this looks like a mismatch. The pricing says otherwise: Los Angeles sits at 56.5 cents on Polymarket’s game market, implying a 56.5% win probability — roughly -130 in American odds, 1.77 in decimal — with Arizona at 43.5 cents, or about +130 (2.30 decimal). American odds show the stake needed to win $100 on a favourite; decimal shows total return per unit staked.

Why the line is tighter than the standings

Los Angeles has lost seven of its last 10, though it snapped that with a win entering this series. The run differential is the more durable argument for the favourite: +140 across the season (589 scored, 449 allowed) against Arizona’s +3 (533 and 530).

What compresses the price is venue and form. Arizona is 34-25 at Chase Field and only 28-31 on the road. The Dodgers are 37-24 away from home, which is what stops this drifting further.

The pitching matchup favours the home side

On the mound, the underdog has the better season. Eduardo Rodriguez carries a 2.71 earned run average across 136.1 innings for Arizona, against Justin Wrobleski’s 3.31 over 117.0 innings for Los Angeles.

Wrobleski’s 11-3 record flatters him — run support does that — but his 1.07 walks and hits per inning pitched (WHIP) is the cleaner number, ahead of Rodriguez’s 1.24. Rodriguez has issued 45 walks to Wrobleski’s 24, and that control gap is the likeliest route to a Dodgers scoring inning.

What the derivative markets are saying

The total sits at 8.5 runs, Over 53.5 cents to Under 46.5 — near a coin flip. Move to 9.5 and it flips under at 56.5 cents. The Dodgers run line at -1.5 is 45.5 cents, implying the market expects a narrow win rather than a comfortable one. A first-inning run is priced at 52 cents and extra innings at just 10 — early scoring, result inside nine.

Match-Up & Markets

Favourite: Los Angeles Dodgers at 56.5 cents on Polymarket, implying 56.5% — approximately -130 American, 1.77 decimal. The total is 8.5 runs and the Dodgers run line is -1.5 at 45.5 cents. Note this is a prediction-market price rather than a licensed sportsbook line; book prices may differ.

Predicted result: Dodgers 5, Diamondbacks 4 — Los Angeles wins without covering -1.5, total under 9.5. The walk gap drives it: Rodriguez’s 45 free passes give a disciplined Dodgers lineup a route to two or three innings, while Wrobleski’s 1.07 WHIP limits Arizona’s traffic.

Markets worth a look:

• Under 9.5 runs at 56.5 cents — two starters with sub-3.35 ERAs, and the market itself prices extra innings at only 10 cents, implying a contained game.
• Diamondbacks moneyline at 43.5 cents — value rests on the home split: 34-25 at Chase Field against a Dodgers side 3-7 in its last 10.
• First-inning run, Yes at 52 cents — Rodriguez’s walk rate is the highest of any number in this preview, and first-inning traffic is where it usually shows.

What to fade: the Dodgers -2.5 spread at 34.5 cents. Los Angeles has scored freely across the season, but a 3-7 run against a strong home side is a poor spot to demand a three-run margin, and the price offers little cushion for that variance.

Odds correct as of August 9, 2026, 16:20 UTC. Informational only — not financial or betting advice. 18+ / 21+ depending on jurisdiction. See Responsible Gambling notice below.

FAQ

Q: What time does Dodgers vs Diamondbacks start?
A: 20:10 UTC on Saturday, August 9, 2026 at Chase Field in Phoenix, Arizona.

Q: Who is favoured?
A: The Dodgers, but only narrowly — 56.5% implied, roughly -130 American. The market has discounted their 3-7 run and Arizona’s 34-25 home record.

Q: Who are the starting pitchers?
A: Justin Wrobleski (11-3, 3.31 ERA) for Los Angeles and Eduardo Rodriguez (10-4, 2.71 ERA) for Arizona, per MLB StatsAPI as of August 9, 2026.

For how this Dodgers side has been priced through the season, see our World Series odds analysis from the All-Star break and the Dodgers vs Cubs preview from August 3.

18+Gambling carries financial risk and can be addictive. If you or someone you know needs help, visit GamCare (UK), call 1-800-GAMBLER (US), or see our Responsible Gambling page. 18+ / 21+ depending on jurisdiction.