- Matchup: San Francisco Giants vs Arizona Diamondbacks
- Date: Wednesday, May 20, 2026
- Venue: Chase Field, Phoenix, AZ
- Broadcast: DBACKS.TV
- Betting Odds: San Francisco (+125) Arizona (-150)
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Chase Field will host an exciting clash where the Arizona Diamondbacks (21-23) face off against the San Francisco Giants (19-27) this Wednesday. The moneyline favors San Francisco at +125 while Arizona is set at -150. The over/under for this match is established at 9 runs. Expected starting pitchers are Tyler Mahle and Merrill Kelly.
The Giants have hit 84 doubles and launched 37 home runs this season. They boast a slugging percentage of .376, with a total of 373 strikeouts against 100 walks. Currently, the San Francisco Giants average 3.5 runs per game, placing them 30th in the league. They have accumulated 159 RBIs and 393 hits, with a batting average of .244. Their on-base percentage (OBP) is .292, having scored 165 runs overall.
The Giants have recorded a striking K/BB ratio of 2.07, while their pitching staff maintains a collective WHIP of 1.32. The Giants’ pitchers have permitted 47 home runs and allowed 202 runs total (15th in the league). With 372 hits (averaging 8.0 hits per 9 innings), they have conceded 184 earned runs. Their team ERA currently stands at 3.97, landing them at 14th in MLB, having struck out 372 batters. The pitching staff has issued 180 walks, with a FIP of 4.17 for the season.
The Giants’ bullpen has achieved a save percentage of 64.3%, coming into play 39 times in save situations, successfully saving 9 of 14 chances. Relievers have dealt with 69 inherited runners this season, with 29% scoring. Additionally, Giants pitchers entered games with opposing players on base 48 times in high-stakes situations. Throughout the year, 152 relief pitchers have taken the mound, and the bullpen recorded 25 holds (16th in MLB).
Throughout this season, the San Francisco Giants have achieved 1,252 putouts, along with 472 assists and 24 errors, leading to a fielding percentage of .986 (17th in MLB) and 50 double plays. The team has converted 70.5% of balls in play into outs across 3,756 innings, positioning them 12th in the league.
Tyler Mahle has pitched for 781 innings, accruing a career total of 801 strikeouts. Holding a 40-51 career record, his FIP is 4.10, having faced 3,328 batters in the majors. His career ERA is 4.16 with 361 ERs permitted, alongside a WHIP of 1.303, and he has allowed 733 hits (8.4 hits per 9 innings) with 285 walks.
The Diamondbacks’ lineup has achieved a team slugging percentage of .393, averaging 4.40 runs per game (13th in MLB). They have registered 85 doubles, with 138 walks earned and 198 runs scored. Arizona has notched 40 home runs this season, tallying 191 RBIs while striking out 349 times (28th in MLB) and amassing 358 hits. Their OBP stands at .306 with a batting average of .239 thus far.
As a pitching staff, the Diamondbacks maintain a WHIP of 1.283, with a FIP of 4.24 for the year. Their K/BB ratio is 7.60, with 333 strikeouts against 141 walks, placing them 13th in MLB for total hits allowed (367). They’ve surrendered 50 home runs and allow 4.89 runs per 9 innings (23rd in MLB), having given up 215 runs and an ERA of 4.39 (193 earned runs).
The Diamondbacks have faced 49 save situations, securing 29 holds and experiencing 7 blown saves. Their relief team has stepped up in 19 save chances, achieving 12 saves. The inherited score percentage for Arizona’s relievers stands at 27.7%, with 65 inherited runners. The bullpen has faced high-leverage situations 56 times and 44 appearances with runners on. Ranked 16th in the league, they maintain a save rate of 63.2%, sending 151 relievers to pitch this year.
Having played 3,564 innings, the Diamondbacks possess a defensive efficiency of 71.1% (8th in MLB). Arizona has completed 28 double plays, holding a fielding percentage of .987 (15th in MLB), with 384 assists, 21 errors, and a total of 1,188 putouts this year.
In his major league career, Kelly has conceded 943 hits while accumulating 934 strikeouts across 1,043 innings. With a career record of 68-56, he boasts a 3.84 ERA and allows 8.1 hits per nine innings. He has surrendered 445 earned runs with a WHIP of 1.209 and a FIP of 3.80. His strikeout-to-walk ratio stands at 2.94, having faced 4,298 batters during his professional career.
Who will take the win in tonight’s MLB matchup against the moneyline or spread?
Prediction: Back San Francisco (+125)
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