Giants vs. Diamondbacks Odds & Betting Predictions - May 20, 2026

Giants at Diamondbacks

1:40 am • ARID

San Francisco Giants

20-31

3 - 5

Arizona Diamondbacks

26-24

pitcher		team	era	w-l
R.Nelson			5.19	1-3
L.Roupp			3.27	5-4

MatchupOpenSpreadTotalMoneyline
Giants 20-31	+1.5	+1.5-193	o8.5-108	+105
Diamondbacks 26-24	u8.5	-1.5+160	u8.5-110	-125

Wednesday 1:40 a.m.

May 20, 2026

Chase FieldPhoenix

ARI -118

ARI -0.5 (F5)+122

ARI -118

0.42u

@cowhitchurch ⭐️⭐️ https://myaction.app/kqUcW4tTg3b

Under 8.5+100

0.5u

@cowhitchurch ⭐️⭐️ https://myaction.app/kqUcW4tTg3b

L.Roupp u17.5 Outs-120

0.6u

Under 8.5+100

0.5u

SF +108

ARI -125

Under 8.5+101

0.51u

Bet to -112

ARI -118

0.5u

Bet to -133

Giants vs. Diamondbacks: 2 Picks for Tuesday
Collin Whitchurch•
May 19, 2026 UTC
Adam Trigger's Triple-A Picks for Tuesday, Including an 11 AM Matchup
Adam Trigger•
May 19, 2026 UTC

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No props found

MLB Public Betting

Diamondbacks are 4-1 in their last 5 games.
Diamondbacks are 3-2 in their last 5 games against the spread
Diamondbacks are 14-10 in their road games against the spread
The totals have gone OVER in 2 of Diamondbacks' last 5 games
The totals have gone OVER in 11 of Diamondbacks' 26 last games at home

Against the Spread (ATS) History

	overall	home	away	favorite	underdog
Diamondbacks	30-20	16-10	14-10	13-9	16-11
Giants	20-31	9-14	11-17	5-10	15-20

Over/Under History

	overall	home o/u	away o/u	favorite o/u	underdog o/u
Diamondbacks	25-23-2	11-14-1	14-9-1	9-12-1	15-11-1
Giants	23-26-2	11-11-1	12-15-1	10-5	12-21-2

Straight-Up (ML) History

	overall	home	away	favorite	underdog
Diamondbacks	26-24	16-10	10-14	14-8	11-16
Giants	20-31	10-13	10-18	7-8	13-22

date	opponent	score	spread	over/under	moneyline
May 19th	SF	W 12-2	-1.5 W	O 9	ARI -136
May 17th	@COL	W 8-6	-1.5 W	O 10.5	ARI -147
May 16th	@COL	L 2-4	-1.5 L	U 11.5	COL -147
May 16th	@COL	W 9-1	-1.5 W	U 12	ARI -121
May 14th	@TEX	L 5-6	-1.5 L	O 8	TEX -113

Corbin Burnes
SP
Burnes is out with elbow
Out
Blake Walston
SP
Walston is out with elbow
Out
Tyler Locklear
1B
Locklear is out with elbow
Out

Cristian Mena
SP
Mena is doubtful with shoulder
Doubtful

Hayden Birdsong
SP
Birdsong is out with arm
Out

See more MLB Injuries

PITCHER	PC	IP	K	ER
RL.Roupp, P	91	6	3	1
RK.Winn, P	14	1	1	0
LE.Miller, P	21	0.1	0	0
RC.Kilian, P	25	1.1	1	2
LM.Gage, P	2	0	0	1

HITTERS	H-AB	R	HR	RBI
1H.Bader, CF	0-5	0	0	0
2L.Arraez, 2B	1-5	0	0	0
3C.Schmitt, DH	1-4	0	0	0
4R.Devers, 1B	2-4	1	1	1
5W.Adames, SS	1-3	1	1	1
6M.Chapman, 3B	1-3	1	0	0
7D.Gilbert, LF	0-4	0	0	0
8D.Susac, C	2-3	0	0	1
9W.Brennan, RF	0-4	0	0	0

PITCHER	PC	IP	K	ER
RR.Nelson, P	88	7	3	3
RK.Ginkel, P	19	1	3	0
RJ.Loaisiga, P	10	1	0	0

HITTERS	H-AB	R	HR	RBI
1K.Marte, 2B	1-5	1	1	3
2C.Carroll, RF	1-3	1	0	0
3G.Perdomo, SS	0-3	0	0	0
4N.Arenado, 3B	2-4	0	0	0
5I.Vargas, 1B	2-4	1	0	0
6L.Gurriel, LF	2-4	0	0	0
7G.Moreno, C	0-3	0	0	0
8A.Del Castillo, DH	2-4	0	0	1
8J.Fernandez, PR	0-0	1	0	0
9R.Waldschmidt, CF	0-2	1	0	0