Weather to Watch
Arizona at Colorado | Coors Field | Overcast, 84F | Wind: 10.9 mph SSE
This is the Coors stack environment. Wind blowing out to right-center adds another 11.4% to HR rates on top of the standard altitude boost, and runs play up about 5%. No precip in the forecast. Treat both lineups as priority.
San Francisco at Athletics | Sutter Health Park | Clear, 85F | Wind: 10.1 mph WSW
Sutter Health Park is the second-best HR environment on the slate behind Coors. Wind blowing out with the gap pulled open by warm air and 33% humidity. HR impact is +9.2%. This is the leverage park if you want to fade Coors chalk.
Milwaukee at Minnesota | Target Field | Partly Cloudy, 86F | Wind: 11.8 mph W
Target Field rarely shows up in the weather section but tonight earns it. Wind blowing straight out at 12 mph plus 86 degrees and dry air put the HR boost at +8.3% and the runs boost north of 6%. Buxton and the Twins righty bats get a real ceiling bump.
Kansas City at St. Louis | Busch Stadium | Overcast, 83F | Wind: 11.2 mph S
Busch is normally a power suppressor (park factor 80 for HR), but a south crosswind in warm air pushes HR impact to +6.4%. Not a stack mandate but worth noting if you're rostering a one-off bat here.
Boston at Atlanta | Truist Park | Clear, 79F | Wind: 6.3 mph SSW
Mild but pleasant. Wind out at +5.7% HR, nothing dramatic. Truist always plays as a slight boost in clear weather. The matchup against Connelly Early matters more than the wind here.
Chicago Cubs at Chicago White Sox | Rate Field | Clear, 76F | Wind: 13.9 mph S
The only outdoor game with wind blowing IN. HR impact drops to -4.6%, runs down -2.9%. This matters for the Murakami / Montgomery / Happ HR pricing because the Cabrera vs CWS or Burke vs CHC matchups still grade well but the park is fighting against contact.
San Diego at Seattle | T-Mobile Park | Heavy Drizzle, 52F | Wind: 12.2 mph WSW
The forecast says heavy drizzle with a 38% precip chance, 52 degrees, and humidity stuck at 81%. This is the rain risk on the board. Even if the game starts, cold and wet kills hitters. Approach SEA/SD bats with caution and confirm radar before lock.
Domes (Daikin Park, Tropicana Field) and the rest of the outdoor games are neutral to mildly suppressive. Nothing else changes the math.
HR Calls
Mickey Moniak (COL) $5,500 vs Merrill Kelly
The board-topper. Moniak is a lefty bat slotting second in the Coors order against Merrill Kelly, who is sitting on a 7.62 ERA, a 5.54 xFIP, and a 19.8% barrel rate allowed. Kelly's vs LHH split is the kind of number you usually don't see in a starting pitcher's data: .505 wOBA, 11.48 ERA, 21.7% HR/FB. Moniak's xISO sits at .276, he pulls 50% of his contact, and he's at .365 over his last 14 days. Stack the wind out, the 127 park factor, and the worst starter on the slate, and this is the cleanest HR call on the board. A lefty pull bat against a fly-ball righty at altitude is the easiest matchup math we get all year.
Yordan Alvarez (HOU) $6,300 vs Jack Leiter
Profile play. Alvarez has a .368 xISO and a 17.6% barrel rate, with a 75.5 mph bat speed that ranks in the top tier on this slate. Jack Leiter has a 4.85 ERA, an 11.9% barrel rate allowed, and gives up 1.48 HR/9. His vs LHH numbers are uglier than his overall line: 4.37 ERA, .369 wOBA, 19.0% HR/FB allowed. Daikin Park is a 116 park factor for lefty pop. Alvarez is priced fair, not cheap, but his contact quality gives the call a floor most HR plays don't have. Yes, he'll carry some ownership, but $6,300 for this kind of barrel profile under a dome with a 116 park factor is a price I'm paying anytime it shows up.
Munetaka Murakami (CWS) $5,800 vs Edward Cabrera
The lefty profile call. Murakami sports a .333 xISO and a 23.0% barrel rate, with a 46% pull rate to right field where Rate Field rewards lefty contact (106 LH park factor even on a wind-in night). Cabrera has been wobbly against lefties specifically: .337 wOBA, 12.0% HR/FB allowed, and that 13.7% league-wide HR/FB number is rising. The Rate Field wind blowing in at -4.6% HR impact is the one knock on this call, but Murakami's batted-ball profile and Cabrera's barrel-allowed rate of 12.8% should override the modest park headwind. He should fly under the radar with the COL/ARI Coors chalk soaking up most of the HR ownership tonight.
Stacks to Target
1. LAD vs Jack Kochanowicz (R) | Implied Total: 6.08 | ROO Score: 7.5/10
Chalk stack
You have to roster this stack tonight, not fade it. The question is how to build it differently than the field. Kochanowicz is a 15% K rate sinker-baller with a 4.62 xFIP, gets squared up at the league average rate but lacks the strikeout to bail himself out. The Dodgers project for over 6 runs and their right-handed bats vs RHP grade at 114 wRC+ while their left-handed bats sit at 122 wRC+, which means both sides of the lineup have a real edge. The pitcher's vs LHH and vs RHH numbers are basically identical (.306 wOBA vs L, .258 wOBA vs R), so the construction comes down to which Dodgers bats you trust most. Angel Stadium isn't Coors but it plays neutral-to-slight-boost with a 108 park factor and a wind blowing out. The LAA bullpen is mid (-1.5 HR/9), so back-end hitters matter too. Expect Mookie Betts, Freddie Freeman, Kyle Tucker, and Will Smith to be the heavily-owned anchors of the build. Smart construction here means at least one piece in the 7-9 hole to differentiate. Andy Pages ($5,200) at #7 with a 152 wRC+ vs RHP and a 21.6% HR/FB rate this year is the unique piece. Hyeseong Kim ($2,900) at #9 is a punt that lets you fit another stud.
Core pieces: Mookie Betts (R, #2), Freddie Freeman (L, #3), Kyle Tucker (L, #4), Andy Pages (R, #7)
2. ATH vs Tyler Mahle (R) | Implied Total: 5.56 | ROO Score: 6.6/10
Pivot stack
This is where the leverage construction lives on a slate where Coors and LAD will eat 30-40% of stack ownership combined. Tyler Mahle has been a different pitcher to lefty vs righty bats this year. His vs LHH numbers look like a stud (.281 wOBA, 6.9% HR/FB allowed), but his vs RHH split is catastrophic: 8.50 ERA, .427 wOBA, and a 46.1% HR/FB rate. That last number is the headline. Mahle is a fly-ball arm in a Sutter Health Park 113 park factor with the wind blowing out at +9.2% HR impact, and his right-handed-batter numbers say every fly ball is one swing away from clearing the wall. Athletics righties don't all match the same profile but Shea Langeliers (.288 ISO, 17.4% barrel rate) and Brent Rooker (.200 ISO, 14.3% barrel rate, 17.4% HR/FB vs RHP) are the natural fits. Athletics lefties matter too because of Sutter Health Park's pull-side lefty profile: Nick Kurtz at #1 has a 178 wRC+ vs RHP this year with a .258 xISO. The Mahle bullpen behind him grades very strong, so the damage really has to come against the starter. Ownership is broadly in the low single digits across the entire stack, and the run environment is second only to Coors.
Core pieces: Nick Kurtz (L, #1), Shea Langeliers (R, #2), Brent Rooker (R, #4), Tyler Soderstrom (L, #3)
3. TEX vs Spencer Arrighetti (R) | Implied Total: 4.25 | ROO Score: 5.3/10
Leverage stack
The model is flagging eruption upside here, which is exactly the kind of low-ownership tag that turns into the slate's surprise stack when it cashes. Arrighetti is sitting on a 1.88 ERA on the year, but the peripherals tell a much different story: 4.64 xFIP, 13.6% walk rate, and only a 24% K rate. He's been getting saved by an 83% strand rate and a 6.8% barrel rate allowed that probably regresses upward. Texas's lefty bats vs RHP are the angle: Joc Pederson, Brandon Nimmo (122 wRC+ vs RHP), and Evan Carter all hit from the left side, and Arrighetti's vs LHH numbers (1.04 ERA in 17.1 IP) are completely propped up by the same 83% strand rate. The HOU bullpen also grades as weak in the model, which means late-game leverage is real if Arrighetti gets pulled in the 5th or 6th. Daikin Park is a 116 park factor under the dome for lefty pop. With Joc Pederson the only Texas bat in double-digit chalk and the rest of the lineup at low ownership, this is the GPP construction that wins tournaments if the model is right that Arrighetti's ERA is paper.
Core pieces: Joc Pederson (L, #1), Brandon Nimmo (L, #2), Corey Seager (L, #3), Josh Jung (R, #4)
Pitchers
Slate pitching has a clean tier structure tonight. Cam Schlittler at $10,500 is the alpha and the floor play, then a deep mid-tier between $7,000 and $8,700 where most of the GPP leverage lives. There's no shortage of strikeout upside, but the right matchups are what separate the studs from the traps.
Cam Schlittler (NYY) vs NYM | $10,500 | CASH
The slate ace at the slate-ace price. Schlittler has a 1.35 ERA, a 2.54 xFIP, a 29.2% K rate, and a 0.81 WHIP over 53.1 IP, and he's facing a Mets lineup with a 2.95 implied total. His splits are eerily good on both sides (1.71 ERA vs LHH, 0.83 ERA vs RHH). He's the highest-priced pitcher on the slate but the cleanest projection. Cash games anchor with no hesitation. The only concern is that he's chalk, which doesn't matter in cash but caps the leverage in GPPs.
Spencer Strider (ATL) vs BOS | $9,200 | GPP
The strikeout upside ceiling on the slate. 35.0% K rate is the highest figure among confirmed starters, and Boston's righty bats vs RHP grade right around league average. Sample size is small (9.1 IP, 2 games coming back from injury) but the stuff has graded out elite when he's been on the mound. ERA sits at 2.89 and FIP at 3.75. Boston's projected for 3.38 runs which is one of the lowest totals on the slate. The risk is the walk rate (17.5% in his return) and the lack of length, but at $9,200 with the K ceiling you accept the GPP variance. Ownership projects heavy for GPP but the upside is unique.
Edward Cabrera (CHC) vs CWS | $7,900 | GPP
Mid-tier dart with major upside. Rate Field plays as a HR suppressor on a wind-in night, and the White Sox lineup is the easier of the two Chicago offenses to navigate. 22.4% K rate, 3.59 xFIP, and a HR/9 of 1.36 that should play down in this park environment. Projects as a top-five pitcher on the slate at low single-digit ownership, which is screaming GPP leverage. The downside is the walk rate (7.8%) and his career-long control noise, but the matchup is the cleanest of the mid-tier options.
Joe Ryan (MIN) vs MIL | $8,600 | GPP
The model's favorite mid-tier arm. 3.43 ERA, 24.9% K rate, and the highest projection on the slate per dollar from the engine. Milwaukee's lefty bats vs RHP grade at 114 wRC+ (above average), so the matchup isn't a slam dunk, but Ryan has handled lefty bats okay this year (.297 wOBA vs LHH). Target Field's wind blowing out is the one real concern given Ryan's 0.60 HR/9 isn't elite. At lower ownership than the chalkier names in this tier he's a clean GPP pivot.
Tanner Bibee (CLE) vs CIN | $7,400 | CASH
Cleanest cash punt for those who want to fit two stacks. 23.2% K rate, 3.90 xFIP, and the Reds lineup at 3.55 implied total is one of the softer offenses on the slate. ERA sits at 4.17 which inflates the price headline but the underlying skill is much better than that number. Floor here is solid. You're paying $7,400 and getting a projection that lands inside the top six on the slate, at fair single-digit ownership.
Pitcher Regression to Watch
The slate has two starters whose ERA is way out ahead of their peripherals, both worth tagging as fade/stack-against candidates.
Clay Holmes (NYM) - Negative Regression Candidate
Holmes has a 1.86 ERA on the season but a 3.74 xFIP and a 3.44 FIP, which is a 1.58 gap that is structurally unsustainable. He's posting a .222 BABIP (league average is .300) and an 87.3% LOB rate (league average is around 72%), both of which scream lucky-not-good. The xFIP is more honest about his underlying skill, and his splits tell the rest of the story: his vs LHH wOBA allowed is .269 and his vs RHH is .221, but his vs LHH HR/FB is already 10.5% suggesting the dam is starting to crack. The Yankees lineup has the right side and the contact quality to be the team that breaks Holmes's run of good fortune. The 4.05 implied total feels low. If you're brave on a NYY stack pivot, this is your reasoning. He's the rare ace-priced pitcher I'm not paying for tonight.
Aaron Civale (ATH) - Negative Regression Candidate
Civale's 2.59 ERA on the year is masking a 4.56 xFIP and a 3.78 FIP, which is the kind of gap that closes fast once luck normalizes. He's running a .315 BABIP which is fine, but an 88.0% LOB rate is a top-3 mark on the slate and is the primary reason for the ERA. His vs RHH numbers are better than his vs LHH numbers (.287 vs .350 wOBA), and the Giants lineup leans more lefty against RHP. SF is also playing at Sutter Health Park where the run environment is elite. Don't be afraid to stack against Civale even at $6,800 price tag. Casey Schmitt has a .229 xISO and is at $3,900 - that's the cheap leverage piece.
Final Thoughts
The cash game build tonight starts with Cam Schlittler at $10,500 and one or two Dodgers anchors (Mookie Betts, Freddie Freeman) for the floor of a 6+ implied team total. The slate's best game stack candidate is unambiguously ARI/COL at Coors Field with the 12-run total. The proper construction here is a 4-3 stack with Colorado getting four bats (Moniak, Goodman, Rumfield, Johnston) and Arizona getting three (Corbin Carroll, Eugenio Suarez, Ketel Marte), and the bring-back is required: a Diamondback who can ambush a Freeland mistake. Carroll is the bring-back of choice given he ranks as the third-best individual HR call on the slate.
For GPP leverage, the pivot away from LAD chalk is the Athletics stack against Tyler Mahle. Three of the top-25 HR scores tonight are Athletics bats (Langeliers, Kurtz, Soderstrom) at single-digit ownership, and Mahle's vs RHH split is the kind of number that loses games. The leverage pivot at lower ownership is the Texas left-handed bats vs Spencer Arrighetti, the model's regression target. If you're rostering the LAD chalk stack and want to differentiate, one-off pieces matter more than fading the stack: Andy Pages at #7 and Hyeseong Kim at #9 are the unique LAD pieces that nobody else will have. The biggest construction mistake to avoid tonight is stacking all-chalk: pick one chalk stack, one pivot, and one leverage spot and you're already ahead of the field.
Tools used for this slate
Every number in this playbook comes off the free BankrollSZN tools: today's MLB DFS projections, the MLB home run predictor, first-pitch weather for every game, today's starting pitchers, and the free MLB lineup optimizer.