Diamondbacks at Cardinals
O/U 8.5 · RL Cardinals -1.5 · Busch Stadium
The pick & result
- Published pick
- Cardinals ML -146
- Published odds
- -146
- Result
- Lost
- Final score
- 4-3
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
We’ve got a critical National League clash tonight at Busch Stadium as the surging St. Louis Cardinals host a heavily depleted Arizona Diamondbacks squad to open a crucial four-game series. The pitching matchup represents a massive contrast in form and execution. St. Louis sends Andre Pallante to the mound, who is 8-4 with a 3.76 ERA and a nearly identical 3.68 xERA, showing he is pitching some of his best baseball of the season. On the other side, Arizona counters with Merrill Kelly, whose 5.81 ERA actually masks an incredibly concerning 7.51 xERA, indicating the market is overpaying for a highly fragile performance profile.
The biggest tactical edge of this game is the Cardinals' left-handed bats matching up against Kelly’s primary weakness. Kelly has been dismantled by lefties this season, allowing a massive .943 OPS and 10 home runs in 156 at-bats. St. Louis has stacked five left-handed hitters in their starting lineup tonight, including the red-hot rookie JJ Wetherholt and Alec Burleson, who is slashing .330 with a 1.005 OPS and 12 home runs against righties this season. Furthermore, Pallante's sinker-heavy profile is perfectly optimized for Busch Stadium (0.96 park factor), and he is backed by second baseman JJ Wetherholt, who ranks second in all of MLB with a +12.22 Fielding Run Value, giving him elite infield protection.
The strongest argument against the Cardinals is Kelly’s historical success against St. Louis, where he holds a 2.25 career ERA in four starts. However, those historic stats came against past, veteran-heavy lineups; tonight, he faces a young, aggressive St. Louis core that has zero career at-bats against him and enters with high momentum after scoring 12 runs yesterday. When you combine Arizona’s severe roster fatigue—manning a makeshift outfield with Tommy Troy and Tim Tawa due to recent injuries to Jordan Lawlar and Ryne Nelson, and starting defensive downgrade Adrian Del Castillo (four passed balls in 15 games) behind the plate—the Cardinals are in a perfect position to secure a victory. We are backing St. Louis on the moneyline.
Injuries noted
Cardinals: [KNOWN] Ryan Fernandez (RP) — Back (Not Specified): Fernandez (back) is on track to begin a rehab assignment with Triple-A Memphis on Friday, Jeff Jones of the Belleville News-Democrat reports. (Jun 15 — 7d ago) [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 — 10d ago) Diamondbacks: [NEW] Michael Soroka (SP) — Lower Body (Left): The Diamondbacks placed Soroka on the 15-day injured list Saturday due to a strained left glute. (Jun 20 — 1d ago) [NEW] Jordan Lawlar (LF) — Hamstring (Right): The Diamondbacks placed Lawlar on the 10-day injured list Saturday with a right hamstring strain. (Jun 20 — 1d ago) [NEW] Ryne Nelson (SP) — Elbow (Right): Nelson will be placed on the 15-day injured list after being diagnosed with a partially torn right flexor tendon, John Gambadoro of Arizona Sports 98.7 FM reports. (Jun 19 — 3d ago) [KNOWN] James McCann (C) — Quadriceps (Right): McCann (quadriceps) is expected to begin playing in complex league games next week, Alex Weiner of ArizonaSports.com reports. (Jun 15 — 6d ago) [KNOWN] Carlos Santana (First Baseman) — Thigh (Right): Santana (thigh) began a rehab assignment in the Arizona Complex League on Friday, Alex Weiner of Arizona Sports reports. (Jun 7 — 15d ago)
The research
The dated measurements the app shows under this card — observations with their sample and source, not predictions.
STARTER FORM
Merrill Kelly: 8.27 ERA over his last 3 starts
8.27The last 3 times out: 16.3 innings, 15 earned runs, 21 hits. That 8.27 ERA runs 2.45 over his 5.81 season number.
PLATOON EDGE
Alec Burleson (bats L) hits 3rd against Merrill Kelly (RHP)
1.005Over 203 AB vs. Right, Alec Burleson owns a 1.005 OPS versus .463 in 90 AB the other way. He sees RHP Merrill Kelly tonight hitting 3rd, where the platoon side lines up his way.
COOLING OFF
Jordan Walker: .682 OPS in L15 — draws RHP Merrill Kelly
.682Jordan Walker's .682 OPS over the last 15 days (56 PA) trails his .876 season mark, down 0.194. Tonight he draws RHP Merrill Kelly — his weaker side: a .848 OPS vs RHP across 222 AB.
Nolan Arenado: .415 OPS in L15 — draws RHP Andre Pallante
.415Nolan Arenado's .415 OPS over the last 15 days (47 PA) trails his .703 season mark, down 0.288. Tonight he draws RHP Andre Pallante — his stronger side: a .715 OPS vs RHP across 177 AB.
HR THREAT
Alec Burleson to go deep
+370Alec Burleson is in an ideal situational matchup to extend his recent power surge. Burleson has recorded a home run in three of his last four games (according to game logs) and thrives against right-handed pitching, slugging 12 of his 13 home runs this season against them while maintaining a 1.005 OPS.
BALLPARK
At Busch Stadium, Andre Pallante pitches to a 4.53 ERA
4.53Andre Pallante starts at Busch Stadium tonight, where his ERA is 4.53 over 43.7 innings — 2.73 on a 33-inning baseline elsewhere. Hitters bat .272 off him here.
REPLACEMENT
Adrian Del Castillo (.628 vs RHP) replaces James McCann at C tonight
.562Adrian Del Castillo draws RHP Andre Pallante from the 6th spot. He carries a .628 OPS vs RHP (112 AB) — a favorable platoon spot relative to his .562 season line. On the injury report for 7 days (Quadriceps).
Tommy Troy (.506 vs RHP) replaces Jordan Lawlar at LF tonight
.705Tommy Troy draws RHP Andre Pallante from the 8th spot. He carries a .506 OPS vs RHP (55 AB) — a tough platoon spot relative to his .705 season line. On the injury report for 2 days (Hamstring).
SITUATIONAL
ARI's pen has logged 17 innings across its last 3 games
173 games, 17 innings out of the pen — Philip Abner (2.7) and Ryan Thompson (2) carried the load. STL's pen has thrown 16.3 over the same span.
REGRESSION
Merrill Kelly: 5.81 ERA vs 7.51 xERA
7.51Merrill Kelly carries a 5.81 ERA against a 7.51 expected ERA (1.7 run gap), so he has been outperforming his contact quality. Opponents hit .280 off him vs a .309 expected (xBA). Most lines price off his season ERA, which may not reflect that gap.
Ketel Marte: .259 AVG vs .300 xBA
.300Across 321 plate appearances, Ketel Marte carries a .259 average versus a .300 xBA. His wOBA sits at .332 against a .370 expected (xwOBA). Statcast grades the quality of his contact rather than the results, and the expected marks sit above what he has actually posted.
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 June 22, 2026 at 11:33 AM 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, caesars, draftkings, betrivers, betmgm.
- Accountability
- Read the editorial standards, source policy, and corrections process.
Props on this game
3- GARY'S PICKALEC BURLESONTOTAL BASES OVER 1.5
The statistical intersection between Merrill Kelly's primary weakness and Alec Burleson's greatest strength makes this the strongest over on the board. Kelly has been severely punished by left-handed hitters this season, yielding a massive .943 OPS.
His underlying metrics (7.51 xERA) suggest that his 5.81 actual ERA is actually masking even poorer performance, driven largely by a high 15.3% barrel rate allowed. Burleson, batting third for the Cardinals, has been elite against right-handed pitching this season with a 1.005 OPS.
Given that Kelly is also leaning toward being a fly-ball pitcher (0.75 GO/AO), Burleson’s power profile is perfectly suited to clear this line with a single extra-base hit or multiple singles.
- GARY'S PICKNOLAN ARENADOH+R+RBI UNDER 1.5
While the narrative of Arenado returning to St. Louis is compelling, the data heavily favors the under. Arenado is currently mired in a significant slump, failing to record even one total base in 19 of his last 25 outings.
He faces Andre Pallante, who is a difficult matchup for a struggling hitter looking for lift. Pallante is a ground-ball leaning pitcher (1.47 GO/AO) who excels at suppressing hard contact (6.5% barrel rate). Crucially, Pallante has been far more effective against right-handed hitters like Arenado, holding them to a meager .628 OPS.
In a game where the Cardinals' pitching staff has the edge over the Diamondbacks' middle-of-the-order, Arenado’s lack of recent production and the pitcher's profile make the under on his combined output the high-probability play.
- THE LONG SHOTALEC BURLESONHR OVER 0.5
Alec Burleson is in an ideal situational matchup to extend his recent power surge. Burleson has recorded a home run in three of his last four games (according to game logs) and thrives against right-handed pitching, slugging 12 of his 13 home runs this season against them while maintaining a 1.005 OPS. He faces Merrill Kelly, whose statistical profile is one of the most vulnerable in the league tonight.
Kelly's 5.81 ERA is significantly lower than his 7.51 xERA, suggesting major regression is ongoing. Kelly has been dismantled by left-handed hitters, surrendering a .943 OPS and a high frequency of home runs. With a 15.3% barrel rate and a 43.2% hard-hit rate allowed, Kelly lacks the ability to miss bats (8.1% whiff rate on his fastball), making him highly susceptible to Burleson's high-contact, high-power left-handed swing.
At +370 odds, the market is pricing this at roughly a 21% probability, which is undervalued given Kelly's specific platoon struggles and Burleson's splits.
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