The Giants will play the Diamondbacks on Wednesday, May 20th, 2026. Your timezone's first pitch time is 3:40 pm EDT. Check local listings or your nearest streaming app for coverage.
Learn more about MLB Betting with our handy tutorial and guide. We explain money line, total and run line bets. Plus, a great discussion about exotic bets like MLB Baseball parlays and props.
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Table of Contents
- Matchup Stats
- Best Odds
- Interactive Odds Example
- Prop Bets
- Team Futures Odds
- Team Pages
- Team Standings
- Other Games Today
Key Matchup Stats
- SportsBetting3.com Power Rankings - The San Francisco Giants have a 88.67 power ranking. The power ranking for the Arizona Diamondbacks is 91.33.
- Visiting San Francisco Giants - The San Francisco Giants have a 6-6 record as a visiting team, ranking them 4th Overall for visiting team wins.
- Home Arizona Diamondbacks - The Arizona Diamondbacks have a 7-4 record as a home team. They rank 3rd for home team wins in the Overall standings.
- Runs Scored - The San Francisco Giants currently stand 23rd (78) Overall, with the Arizona Diamondbacks ranking 13th (104) for runs scored.
- Runs Allowed - The San Francisco Giants are 15th (97) Overall for runs allowed. The Arizona Diamondbacks stand 9th (113) for runs allowed.
- Team Streaks - The San Francisco Giants won their last game. Meanwhile, the Arizona Diamondbacks have lost their last 2 games.
- Team Records - The San Francisco Giants have a 10-13 Overall record (6.0 GB National West Division), with the Arizona Diamondbacks possessing a 13-10 Overall standing (3.0 GB National West Division).
Best Giants at Diamondbacks Odds
| Underdog San Francisco Giants | Favorite Arizona Diamondbacks |
|---|---|
| Over | Under |
|---|---|
| Underdog San Francisco Giants | Favorite Arizona Diamondbacks |
|---|---|
Matchup Odds FAQs
The Arizona Diamondbacks are the -135 moneyline favorite at BetMGM and the San Francisco Giants are the +110 moneyline underdog at BetMGM.
The best over line is 9 +105 runs at BetMGM, which means you risk $100 to win $105 betting the over. The best under line is 9 -125 runs at BetMGM, and that means you risk $125 to win $100 betting the under.
The Arizona Diamondbacks are -1.5 +150 run line favorites at BetMGM, while the San Francisco Giants are +1.5 -185 run line underdogs at BetMGM.
MLB Odds Example
|
Game |
 BetMGMBet |
|---|---|
Giants
Diamondbacks
5/20/26 3:40pm EDT | +110-135 |
- San Francisco Giants bettors risk $100 to win $110 at +110 odds. The implied probability for San Francisco Giants is 47.62%.
- Arizona Diamondbacks bettors risk $100 to win $74.07 at -135 odds. The implied probability for Arizona Diamondbacks is 57.45%.
San Francisco Giants at Arizona Diamondbacks Prop Bets
| BetMGM Bet |
|
|---|---|
Giants
Diamondbacks
5/20/26 3:40pm EDT | Pending BetMGM |
San Francisco Giants & Arizona Diamondbacks Futures Odds
Latest World Series odds, if available, for each team. Review odds for other teams and learn how to bet on the tournament. See past Championship results and learn how to bet World Series teasers, props and parlays.
San Francisco Giants World Series Odds|
Team | BetMGM |
|---|---|
| Giants | +15000 Bet |
|
Team | BetMGM |
|---|---|
| Diamondbacks | +10000 Bet |
San Francisco Giants & Arizona Diamondbacks Team Pages
Review each team's season win total odds, futures odds, betting bonuses and other valuable information on our exclusive team betting odds pages. Team betting odds and stats update throughout the season:
Team Standings
| Team | W | L | Pct | GB | Home | Away | RS | RA | Diff | Strk | L10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Arizona Diamondbacks | 13 | 10 | 0.565 | +3.0 | 7-4 | 6-6 | 104 | 113 | -9 | L2 | 6-4 |
| San Francisco Giants | 10 | 13 | 0.435 | +6.0 | 4-7 | 6-6 | 78 | 97 | -19 | W1 | 5-5 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the San Francisco Giants vs Arizona Diamondbacks MLB Game
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Open a new sports betting account before game time.
Review our list of sports betting sites. Open a new account before the game starts on Wednesday, May 20th, 2026 at 3:40 pm EDT, making sure to enter all your personal details correctly. Don't forget to add your bonus code.
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Visit the sportsbook’s cashier, banking, or deposit page.
Navigate to the sportsbook's deposit page. Use your Visa card or MasterCard, or deposit with a bank transfer, or other methods like Paypal.
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Tap to the sportsbook's MLB page, look for the San Francisco Giants vs Arizona Diamondbacks Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the San Francisco Giants vs Arizona Diamondbacks Game.
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Choose your bet and place a wager.
Choose your bet and then use the funds you deposited to place a wager. The sportsbook will pay your winnings or deduct a losing wager from your account balance after the game.
Other May 20, 2026 MLB Games
- Cincinnati Reds vs Philadelphia Phillies - 5/20/26 1:05pm EDT
- Baltimore Orioles vs Tampa Bay Rays - 5/20/26 1:10pm EDT
- Houston Astros vs Minnesota Twins - 5/20/26 1:40pm EDT
- Texas Rangers vs Colorado Rockies - 5/20/26 3:10pm EDT
- Chicago White Sox vs Seattle Mariners - 5/20/26 4:10pm EDT
- Cleveland Guardians vs Detroit Tigers - 5/20/26 6:40pm EDT
- Atlanta Braves vs Miami Marlins - 5/20/26 6:40pm EDT
- New York Mets vs Washington Nationals - 5/20/26 6:45pm EDT
- Toronto Blue Jays vs New York Yankees - 5/20/26 7:05pm EDT
- Milwaukee Brewers vs Chicago Cubs - 5/20/26 7:40pm EDT
- Boston Red Sox vs Kansas City Royals - 5/20/26 7:40pm EDT
- Pittsburgh Pirates vs St. Louis Cardinals - 5/20/26 7:45pm EDT
- Los Angeles Dodgers vs San Diego Padres - 5/20/26 8:40pm EDT
- Oakland Athletics vs Los Angeles Angels - 5/20/26 9:38pm EDT