Weather to Watch
Baltimore Orioles at Washington Nationals | Nationals Park | Overcast, 88F | Wind: 9.4 mph WSW
The hottest weather spot on the board. Wind blows out to right at 9 mph in 88 degree heat, and the HR impact lands at +10% on the slate. This is the environment to lean into when you build BAL or WSH pieces.
Kansas City Royals at St. Louis Cardinals | Busch Stadium | Mostly Clear, 86F | Wind: 17.3 mph S
A 17 mph crosswind from the south at 86 degrees pushes the HR impact to +8.3% even though wind is not directly aligned with either gap. Busch usually suppresses power, but heat plus crosswind opens the door for both lineups to clear the wall.
New York Yankees at New York Mets | Citi Field | Clear, 90F | Wind: 6.7 mph WSW
89.5 degrees, light wind blowing toward right field, and a +7% HR impact. The Subway Series gets a hitter friendly environment to go with two short starters.
Philadelphia Phillies at Pittsburgh Pirates | PNC Park | Mostly Clear, 83F | Wind: 10.1 mph WSW
PNC stays a tough HR park even with the boost, but 83 degrees and a 10 mph crosswind nudge the impact to +4.7%. Light boost, not slate moving.
Milwaukee Brewers at Minnesota Twins | Target Field | Partly Cloudy, 73F | Wind: 14.7 mph ESE
Wind blowing in at 14.7 mph drops the HR impact to -4.3%. Precip chance sits at 18%. Discount the power upside in this spot and watch the radar before lock.
Boston Red Sox at Atlanta Braves | Truist Park | Mostly Clear, 86F | Wind: 8.4 mph SE
Truist sits at neutral on the HR scale today with a +3.7% boost. The heat matters more than the wind here, and a Bello matchup needs no extra help.
HR Calls
Matt Olson (ATL) $5,400 vs Brayan Bello
Bello has been getting carved by lefties this year with an 8.84 ERA vs LHH, a .460 wOBA vs LHH, and a 26.9% HR/FB vs LHH. Olson counters that with a .325 xISO, an 18.3% barrel rate, and a recent 14 day ISO sitting at .469. The salary stayed at $5,400 even with one of the easiest matchups on the slate, which is the part that does not add up. I am rostering him as the lineup anchor in cash and as a stack piece in GPP.
James Wood (WSH) $6,400 vs Brandon Young
This one is all about environment. Nationals Park is the slate's top weather spot at +10% HR impact in 88 degree heat with the wind blowing out to right, and Wood is a 26.9% barrel, .343 xISO lefty leading off a lineup with a 4.63 team total. Brandon Young is a fly ball arm against lefty bats specifically (59.6% FB rate vs LHH, 6.19 ERA vs LHH, .313 wOBA vs LHH). I cannot find a cleaner setup for a leadoff lefty than this one today.
Tyler O'Neill (BAL) $3,700 vs Miles Mikolas
Mikolas has given up a 22.2% HR/FB to RHH and a 6.62 ERA vs RHH this year, and his peripherals are no better. O'Neill is a .243 xISO, 13.6% barrel righty with a 48% pull rate, and he gets the same +10% HR weather boost as Wood from the other dugout. At $3,700 with a 5.37 team total behind him, the salary just has not caught up to what is in front of him. He is the cheapest piece of the BAL stack and the easiest one to be different on.
Stacks to Target
1. BAL vs Miles Mikolas (R) | Implied Total: 5.37 | ROO Score: 6.5/10
Chalk stack
The Orioles top the in slate implied totals at 5.37 against the worst per inning starter on the board. Mikolas is sitting on an 8.28 season ERA, a 2.52 HR/9, and his split numbers are brutal against both sides: a 7.36 ERA vs LHH with a 25% HR/FB allowed, and a 6.62 ERA vs RHH with a 22.2% HR/FB allowed. The starter vulnerability score on Baltimore reflects that. Park and weather add another layer at +10% HR impact in 88 degree heat with the wind out. The lineup is heavy chalk: Taylor Ward is around 17% projected ownership, Adley Rutschman around 15%, and the broader stack will be widely rostered. Lean into it but find unique construction. Henderson L and Basallo L benefit most from the vs LHH split, while Alonso R, Rutschman B, and O'Neill R can attack the vs RHH side just as well. The bullpen behind Mikolas does not provide much late game relief either, so back end bats matter for the 7-8-9 turnover.
Core pieces: Gunnar Henderson (L, batting 1st), Pete Alonso (R, batting 4th), Adley Rutschman (B, batting 3rd), Tyler O'Neill (R, batting 6th)
2. ATL vs Brayan Bello (R) | Implied Total: 4.99 | ROO Score: 6.0/10
Pivot stack
The Braves get the second best stack environment on the slate at home against a Bello who has been the easiest start in baseball this year. He carries a 9.12 ERA and a 5.11 xFIP, and the vs LHH split is brutal: an 8.84 ERA, .460 wOBA, and 26.9% HR/FB vs LHH. The starter vulnerability is the headline, but ATL's stack leverage score also hits the max at 10/10. Weather contributes a small +3.7% boost in 86 degree Truist heat. The lefty side of the Atlanta order is the obvious attack vector with Matt Olson (3), Drake Baldwin (1), and Michael Harris (4). Bello's vs RHH numbers are better but still a 4.12 ERA and a .307 wOBA vs RHH, so Riley and Albies remain in the mix. Ownership lands a tier below Baltimore because BAL has the higher total, which is exactly what makes ATL the pivot. Same kind of run upside, lower projected ownership, and a path to leverage the field's chalkier construction.
Core pieces: Matt Olson (L, batting 3rd), Drake Baldwin (L, batting 1st), Michael Harris (L, batting 4th), Ozzie Albies (S, batting 2nd)
3. MIL vs Bailey Ober (R) | Implied Total: 3.98 | ROO Score: 5.0/10
Leverage stack
The Brewers carry the eruption flag from the model in a quieter spot. The implied total at 3.98 is in the middle of the slate, ownership lands in the medium tier, and most rooms will roll past Milwaukee for BAL and ATL chalk. Bailey Ober is a fly ball arm with a 4.49 xFIP and a 61.5% FB rate vs LHH this year, which lines up with the wind risk in Minneapolis (wind blowing in at 14.7 mph and a -4.3% HR impact). The weather is the price of admission here. Ober's splits are nearly even (.274 wOBA vs LHH, .265 vs RHH), so the play is depth and bat to ball rather than a single side power smash. Brice Turang from the leadoff spot and William Contreras at three are the anchors, and the Twins bullpen ranks as one of the weaker units on the slate, which makes the 7-8-9 turnover spots matter for late game damage. This is the GPP construction spot where 5% rostered pieces win lineups if MIL clears 5 or 6 runs.
Core pieces: Brice Turang (L, batting 1st), William Contreras (R, batting 3rd), Christian Yelich (L, DH), Andrew Vaughn (R, batting 5th)
Pitchers
The pricing tiers are clean today. Skenes and Wheeler anchor the top, the mid range has multiple cash worthy arms, and the value floor has at least one playable GPP option.
Paul Skenes (PIT) vs PHI | $10,300 | CASH
The slate ace at $10,300 in a 3.08 opposing implied total. Skenes is sitting on a 1.98 ERA, a 2.83 xFIP, a 30.3% K rate, a 0.64 WHIP, and a 0.72 HR/9 across 50 IP. The splits are elite both ways at a .199 wOBA vs LHH and a .196 wOBA vs RHH. PHI is a tough lineup, but at home in a 7.0 total game with a 59% win probability, Skenes is the cash anchor of choice and the highest floor on the board.
Zack Wheeler (PHI) vs PIT | $9,800 | CASH
The other side of the same game gives you Wheeler at $9,800 against the worst lineup in the National League. Wheeler has a 2.55 ERA, a 2.69 FIP, a 23.2% K rate, and a 0.93 WHIP, and a 0.36 HR/9 is comically low. PIT's implied total sits at 3.92, but Wheeler has dominated regardless of opponent quality this year. The salary saving versus Skenes also opens up an extra $500 for the hitting side.
Freddy Peralta (NYM) vs NYY | $8,900 | GPP
A mid tier price with ace ceiling. Peralta has a 3.10 ERA, a 23.8% K rate, and a 1.21 WHIP across 49 IP. The Yankees lineup is the variance lever and the reason ownership stays around 16% instead of 25%, but Peralta's split numbers are tight at a .300 wOBA vs LHH and a .267 wOBA vs RHH, and Citi Field suppresses HR slightly for righty bats. The K ceiling is what makes him a GPP play, not a cash play.
Gavin Williams (CLE) vs CIN | $8,600 | CASH
The 29.3% K rate is the standout number. Williams has a 3.74 ERA, a 3.84 FIP, and Cincinnati's implied total of 3.40 is the second lowest on the slate. CIN strikes out at a top five rate in the league, which gives Williams a clear path to 9 plus Ks. He grades out as the best floor and ceiling combination in the second tier.
Grant Holmes (ATL) vs BOS | $7,000 | GPP
The leverage SP of the slate. Holmes is at $7,000 with only 9% projected ownership in a 3.51 opposing implied total. He carries a 4.35 ERA but a 19.2% K rate, and BOS is the most punchable lineup in the AL East. The win probability is on his side at 61%, and a quality start plus 8 Ks at this price unlocks roster builds elsewhere.
Pitcher Regression to Watch
Two starters with big ERA/FIP gaps stand out today, and both push toward the same conclusion: stack against them.
Erick Fedde (CWS) | Negative Regression Candidate
The ERA reads 4.31, but the underlying numbers are a different story. Fedde has a 6.54 FIP and a 4.83 xFIP across 31.1 IP, with a 16% K rate and a .211 BABIP. The BABIP is the tell. Throw in an 87.1% LOB rate, and Fedde has been the luckiest pitcher to a 4 something ERA on the slate. The vs RHH split is the cleanest exploit at a 27.3% HR/FB allowed and a .394 wOBA. The CHC stack against him at +5.5 implied total has every reason to break through, and his expected ERA going forward looks closer to 6 than to 4.
Brayan Bello (BOS) | Negative Regression Candidate
The flip side. Bello's 9.12 ERA looks like an outlier waiting to correct, and the .376 BABIP and 64% LOB rate both suggest some bounce back is coming. The catch is that even the regressed version sits at a 5.11 xFIP with a 12.8% K rate, an 11.3% BB rate, and a 2.81 HR/9. He is going to give up runs in this matchup whether the headline ERA settles or not, and the ATL stack is still the right way to attack the second worst starter on the board. The regression note is a reason to expect maybe 4 runs in 4 innings instead of 6 in 3.
Final Thoughts
The cash core builds around the top of the pitching board and the chalk Baltimore stack. Skenes plus Wheeler is the rare two ace cash build that frees up just enough room to fit Matt Olson, James Wood, and a Rutschman or Pete Alonso piece off the BAL stack. The game stack candidate on the slate is the WSH vs BAL matchup at a 10.0 total. Run a 5 BAL with 3 WSH bring back, and let the Wood plus Lile combo capture the back and forth scoring if both pitchers fall apart as expected. The lefty stacks on the chalkier side and a leadoff hitter on the bring back side cover the obvious paths to 11 plus runs in that game.
GPP construction lives in three places: the MIL leverage stack with Turang and Contreras, Holmes as the punt SP2 that opens up an extra $1,500 for hitting, and the bottom of the CHC order at sub $4,000 prices to leverage a Fedde regression spot. When the BAL stack is unavoidable chalk in the room, the path to be different is in the 6-9 hole construction: skip Taylor Ward and Adley Rutschman for Coby Mayo or Samuel Basallo at lower projected ownership. The chalk hitters get rostered, but the unique 8-9 spot is what wins.
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.