Cardinals at Diamondbacks
O/U 10.5 · RL Cardinals -1.5 · Chase Field (NH)
The pick & result
- Published pick
- Cardinals ML -104
- Published odds
- -104
- Result
- Won
- Final score
- 5-4
Odds are the American price printed with this pick, not a current offer. Wins, losses and pushes remain on the public record; a missing grade is not a win.
The read
Desert heat is locked outside, but the action will be scorching inside Chase Field tonight as the St. Louis Cardinals and Arizona Diamondbacks restart their campaigns in a crucial mid-July battle. Both teams are looking to set the tone for the second half of the season, but the value here sits squarely with the road underdogs. While the public might be tempted to back Arizona off their pre-break sweep, the starting pitching matchup reveals a massive discrepancy. St. Louis sends Michael McGreevy to the mound, and while his 3.01 ERA is due for some regression against his 5.34 xERA, his recent form remains highly respectable. The real target tonight is Arizona's Merrill Kelly. Kelly has been an absolute liability this season, carrying a bloated 5.38 ERA that actually masks a catastrophic 7.44 xERA. He is allowing an alarming 14.1% barrel rate and a 43.7% hard-hit rate, which has contributed to his dreadful 7.44 ERA in his home starts.
This sets up as a perfect matchup for the Cardinals' left-handed bats, who are primed to punish Kelly's struggling four-seamer. Kelly's fastball is being pulverized to the tune of a .446 xwOBA and a .368 batting average this year, which is music to the ears of Alec Burleson. Burleson carries a stellar .940 OPS against right-handed pitching and a .418 xwOBA against four-seamers. Alongside Lars Nootbaar and Jordan Walker, who boasts a .927 road OPS, the Cardinals' offense has the ideal power profile to exploit Kelly's home vulnerabilities in a hitter-friendly environment that features a 1.06 park factor. With Arizona's rotation heavily depleted by injuries—including Zac Gallen, who was officially placed on the 15-day injured list today—manager Torey Lovullo cannot afford to quickly hook Kelly and tax a bullpen that has been overworked for weeks.
St. Louis also holds a distinct advantage away from home, carrying an excellent 24-19 road record. While the Cardinals' bullpen takes a hit with setup man JoJo Romero placed on the injured list today with appendicitis, they still have their primary late-inning weapons fully rested. Closer Riley O'Brien (24 saves, 1.12 WHIP) is completely fresh and ready to lock down the late frames. Although Arizona has a strong home record and excellent defensive metrics, Kelly's inability to prevent hard contact and the Cardinals' potent left-handed bats should dictate the flow of this game from the early innings. At a near-even price, the Cardinals represent outstanding value to take the opener on the road.
Injuries noted
Diamondbacks: [NEW] Michael Soroka (SP) — Lower Body (Left): Manager Torey Lovullo said Friday that Soroka (glute) is in line to return from the injured list sometime around early August, Nick Piecoro of The Arizona Republic reports. (Jul 17 — 0d ago) [KNOWN] Ryne Nelson (SP) — Elbow (Right): The Diamondbacks transferred Nelson (elbow) to the 60-day injured list Thursday. (Jun 25 — 22d ago) [KNOWN] Jordan Lawlar (LF) — Hamstring (Right): Lawlar (hamstring) has begun hitting in the cage and executing running mechanics, MLB.com reports. (Jul 13 — 4d ago) [NEW] Zac Gallen (SP) — Elbow (Right): Manager Torey Lovullo said Thursday that Gallen is awaiting a second opinion on his injured right elbow, Alex D'Agostino of SI.com reports. (Jul 16 — 0d ago) [NEW] Tommy Troy (LF) — Shoulder (Right): Manager Torey Lovullo said Friday that Troy (shoulder) is expected to remain out for roughly 3-to-4 weeks, Jack Sommers of SI.com reports. (Jul 17 — 0d ago) Cardinals: [KNOWN] Ramon Urias (3B) — Elbow (Right): Urias (elbow) returned to St. Louis to undergo an examination on his left elbow, Jeff Jones of the Belleville News-Democrat reports. (Jun 12 — 35d ago) [KNOWN] Max Rajcic (RP) — Elbow (Right): The Cardinals transferred Rajcic (elbow) to the 60-day injured list Tuesday. (Jul 7 — 10d ago) [NEW] JoJo Romero (RP) — Abdomen: The Cardinals placed Romero on the 15-day injured list Friday, retroactive to Tuesday, due to appendicitis. (Jul 17 — 0d ago)
The research
The dated measurements the app shows under this card — observations with their sample and source, not predictions.
PLATOON EDGE
Alec Burleson (bats L) hits 3rd against Merrill Kelly (RHP)
.940Over 246 AB vs. Right, Alec Burleson owns a .940 OPS versus .502 in 113 AB the other way. He sees RHP Merrill Kelly tonight hitting 3rd, where the platoon side lines up his way.
HEAT CHECK
Jordan Walker: 1.147 OPS in Last 15 Days
1.147The last 15 days sample runs 41 PA: a 1.147 OPS versus .887 for the season, 0.26 above his norm. He has 22 home runs on the season. His total-bases line tonight: 1.5.
COOLING OFF
Corbin Carroll: .439 OPS in L15 — draws RHP Michael McGreevy
.439Corbin Carroll's .439 OPS over the last 15 days (36 PA) trails his .825 season mark, down 0.386. Tonight he draws RHP Michael McGreevy — his weaker side: a .731 OPS vs RHP across 237 AB.
Ketel Marte: .460 OPS in L15 — draws RHP Michael McGreevy
.460Ketel Marte's .460 OPS over the last 15 days (42 PA) trails his .772 season mark, down 0.312. Tonight he draws RHP Michael McGreevy — his weaker side: a .715 OPS vs RHP across 274 AB.
BALLPARK
Merrill Kelly owns a 7.44 ERA at Chase Field — 4.28 everywhere else
7.44Across 6 games (32.7 IP) at Chase Field, Merrill Kelly has a 7.44 ERA against 4.28 at his other parks (61 IP). Hitters bat .326 off him here.
SITUATIONAL
14 bullpen innings in 3 games for STL
14Relievers have absorbed 14 innings over the last 3 games (Justin Bruihl (3.3) and George Soriano (2.3) the heaviest). ARI's pen has thrown 12.7 over the same span.
REGRESSION
Michael McGreevy: 3.01 ERA vs 5.34 xERA
5.34Michael McGreevy carries a 3.01 ERA against a 5.34 expected ERA (2.33 run gap), so he has been outperforming his contact quality. Opponents hit .235 off him vs a .287 expected (xBA). Most lines price off his season ERA, which may not reflect that gap.
Merrill Kelly: 5.38 ERA vs 7.44 xERA
7.44Merrill Kelly carries a 5.38 ERA against a 7.44 expected ERA (2.06 run gap), so he has been outperforming his contact quality. Opponents hit .282 off him vs a .306 expected (xBA). Most lines price off his season ERA, which may not reflect that gap.
FANTASY PICKUPS
Alec Burleson
.805 OPSPickup vs Merrill Kelly (7.44 xERA) — .805 OPS, bats 3rd.
Ivan Herrera
.771 OPSPickup vs Merrill Kelly (7.44 xERA) — .771 OPS, bats 2nd.
Lars Nootbaar
.778 OPSPickup vs Merrill Kelly (7.44 xERA) — .778 OPS, bats 5th.
JJ Wetherholt
.755 OPSPickup vs Merrill Kelly (7.44 xERA) — .755 OPS, bats 1st.
About this analysis
- Who made it
- Gary AI, an AI sports-analysis product operated by Gary A.I. LLC. No human reviewer is claimed unless one is explicitly named.
- Published data
- Daily picks first stored July 17, 2026 at 12:10 PM ET.
- Odds record
- The pick receipt shows the price printed in the published ticket. The matchup market and line ladder provide separate market context. Stored sportsbook sources: fanduel, fanatics, betrivers, caesars, draftkings, betmgm.
- Accountability
- Read the editorial standards, source policy, and corrections process.
Props on this game
2- GARY'S PICKJORDAN WALKERH+R+RBI OVER 1.5
Jordan Walker is scorching hot entering the series, hitting .323 with 11 RBIs in his last 10 games. He faces Merrill Kelly, who is a massive regression candidate with a 7.44 xERA and a 14.1% Barrel rate. Walker's ability to drive the ball combined with Kelly's tendency to give up loud contact makes this line very reachable, especially with Walker batting in the cleanup spot where RBI opportunities are frequent. Kelly is allowing an .833 OPS to RHB this season, and Walker's power profile is perfectly suited for the dimensions at Chase Field.
- GARY'S PICKGABRIEL MORENOH+R+RBI OVER 1.5
Gabriel Moreno is the most consistent hitter in the Arizona lineup right now, batting .395 over his last 10 games with multi-hit performances in 7 of those 10. He matches up against Michael McGreevy, whose 3.01 ERA is masked by a 5.34 xERA and a high 40.4% hard-hit rate.
McGreevy's lack of strikeout stuff (5.8 K/9) plays right into Moreno's hands as a high-contact hitter. At +175 for a multi-hit game, there is significant value on a player who has cleared this in 70% of his recent starts and hits .315 against right-handed pitching.
I am taking his H+R+RBI to capture the full scope of his production in the middle of the order.
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