MLB Steam Move Report — September 7, 2026
PHILADELPHIA PHILLIES
Opening line: -161
Current line: -178
Move: 17 cents toward Philadelphia
WHY THE LINE MOVED
The Phillies’ move starts with the pitching advantage. Jesús Luzardo enters with a 13-5 record, 3.02 ERA and 209 strikeouts. He has been especially sharp lately, allowing no more than two earned runs in any of his six starts since the beginning of August while posting a 1.32 ERA during that stretch.
Atlanta counters with Grant Holmes, who owns a respectable 3.62 ERA but has been less consistent. Philadelphia has also seen him before, and Bryce Harper and Trea Turner have produced against him in their limited previous matchups.
The confirmed lineup strengthened the case. Philadelphia has Kyle Schwarber, Turner, Harper, Luis Arraez, Alec Bohm, Bryson Stott, Brandon Marsh and J.T. Realmuto all starting. There were no surprise absences in the heart of the order, allowing bettors who preferred Philadelphia to enter without worrying about a weakened lineup.
BETTING IMPACT
This looks like a starting-pitching move that received another push once Philadelphia confirmed its full lineup. Luzardo offers the stronger strikeout profile, better recent form and a more dependable path through the middle innings.
The move does not mean Atlanta is an easy fade. The Braves have a dangerous lineup, Ronald Acuña Jr. is swinging the bat well, and Holmes has already pitched effectively against Philadelphia this season.
Philadelphia made sense closer to the opening price. At -178, much of the pitching advantage is now built into the number. Bettors arriving late are paying 17 cents more than those who entered early.
MIAMI MARLINS
Opening line: -113
Current line: -135
Move: 22 cents toward Miami
WHY THE LINE MOVED
Miami’s move appears to be built around the difference in starting-pitcher certainty.
Eury Pérez is 7-10 with a 3.72 ERA, 1.18 WHIP and 145 strikeouts. He has legitimate swing-and-miss ability and is the more established major-league starter in this matchup.
The Mets recalled Jonah Tong to make today’s start. Tong has improved considerably at Triple-A, producing a 2.20 ERA while holding hitters to a .185 average over his last eight outings, but he remains a young pitcher being dropped into a road start immediately after a promotion.
Miami’s confirmed lineup also removed uncertainty. Kyle Stowers is back in the leadoff spot, with Heriberto Hernández, Griffin Conine, Otto Lopez, Jakob Marsee and Owen Caissie behind him. This is not an overpowering lineup, but the important part for the market was that Miami did not announce a watered-down holiday lineup.
BETTING IMPACT
The market is siding with the established home starter over the recently recalled prospect. That is a reasonable handicap, especially with Miami still playing meaningful September baseball.
The move is not without risk. Pérez has struggled recently, allowing 11 earned runs over his last 7⅔ innings. Tong also returns with better secondary pitches and much stronger recent minor-league results than his earlier numbers suggest.
The lineup confirmation likely helped trigger the move, but this is primarily a pitching-trust move—not a belief that Miami owns a dominant offensive advantage.
Miami was attractive near -113 because Pérez only needed to be moderately better than Tong. At -135, the Marlins now have to justify a 22-cent increase despite Pérez’s recent struggles. The steam is legitimate, but the value was considerably stronger at the opening number.