Polymarket's MLB prediction market board for Tuesday, August 11, 2026 covers 15 games, with contract prices quoted in cents representing the market's live implied probability for each side. This guide breaks down today's Polymarket prediction market MLB picks matchup by matchup, covering moneyline, spread, and total pricing alongside starting pitcher form, from the 6:40 PM Pirates-Marlins opener through the 10:10 PM Royals-Dodgers finale.

Matchup

Moneyline

Spread

Total

First Pitch (ET)

Pirates @ Marlins

PIT 52¢ / MIA 49¢

PIT -1.5 39¢ / MIA +1.5 62¢

O 6.5 56¢ / U 6.5 45¢

6:40 PM

Guardians @ Tigers

CLE 47¢ / DET 54¢

CLE +1.5 64¢ / DET -1.5 37¢

O 8.5 47¢ / U 8.5 54¢

6:40 PM

Cubs @ Nationals

CHC 61¢ / WSH 40¢

CHC -1.5 49¢ / WSH +1.5 52¢

O 8.5 55¢ / U 8.5 46¢

6:45 PM

Mariners @ Yankees

SEA 46¢ / NYY 55¢

SEA +1.5 64¢ / NYY -1.5 37¢

O 7.5 55¢ / U 7.5 46¢

7:05 PM

Red Sox @ Blue Jays

BOS 44¢ / TOR 57¢

BOS +1.5 63¢ / TOR -1.5 38¢

O 6.5 56¢ / U 6.5 45¢

7:07 PM

Mets @ Braves

NYM 46¢ / ATL 55¢

NYM +1.5 64¢ / ATL -1.5 37¢

O 8.5 50¢ / U 8.5 51¢

7:15 PM

Reds @ White Sox

CIN 42¢ / CWS 59¢

CIN +1.5 60¢ / CWS -1.5 41¢

O 7.5 52¢ / U 7.5 49¢

7:40 PM

Orioles @ Twins

BAL 49¢ / MIN 52¢

BAL -1.5 38¢ / MIN +1.5 63¢

O 9.5 49¢ / U 9.5 52¢

7:40 PM

Phillies @ Cardinals

PHI 61¢ / STL 40¢

PHI -1.5 48¢ / STL +1.5 53¢

O 8.5 47¢ / U 8.5 54¢

7:45 PM

Rangers @ Angels

TEX 57¢ / LAA 44¢

TEX -1.5 46¢ / LAA +1.5 55¢

O 9.5 46¢ / U 9.5 55¢

9:38 PM

Rockies @ Diamondbacks

COL 38¢ / ARI 63¢

COL +1.5 56¢ / ARI -1.5 46¢

O 9.5 49¢ / U 9.5 52¢

9:40 PM

Brewers @ Padres

MIL 54¢ / SD 47¢

MIL -1.5 41¢ / SD +1.5 60¢

O 7.5 48¢ / U 7.5 53¢

9:40 PM

Rays @ Athletics

TB 62¢ / OAK 39¢

TB -1.5 51¢ / OAK +1.5 50¢

O 10.5 49¢ / U 10.5 52¢

9:40 PM

Astros @ Giants

HOU 64¢ / SF 37¢

HOU -1.5 51¢ / SF +1.5 50¢

O 7.5 54¢ / U 7.5 47¢

9:45 PM

Royals @ Dodgers

KC 29¢ / LAD 72¢

KC +1.5 47¢ / LAD -1.5 54¢

O 8.5 49¢ / U 8.5 52¢

10:10 PM


 

Top Polymarket Prediction Market MLB Picks for Today

When you're scanning Polymarket prediction market picks today, the volume numbers point you toward the games the market has weighed in on hardest. Three matchups stand out on this board.

Mets @ Braves

Nolan McLean has quietly turned into one of the better arms in the Mets rotation at 8-7 with a 3.51 ERA and 156 strikeouts, while Atlanta counters with veteran Martin Perez, steady at 7-6 with a 3.14 ERA. The Braves have separated themselves in the NL East at 71-48, and that overall team quality shows up in the moneyline at NYM 46¢ / ATL 55¢. The $99.45K in volume behind this one makes it the most heavily traded game on the board tonight.

Mariners @ Yankees

Bryan Woo has been a workhorse for Seattle at 8-8 with a 4.31 ERA and 127 strikeouts, while Ryan Weathers has given the Yankees a steady 3.79 ERA out of the rotation. New York holds the better overall record at 66-52, and the moneyline reflects a moderate home lean at SEA 46¢ / NYY 55¢, with $86.87K in volume behind Yankee Stadium tonight.

Pirates @ Marlins

Paul Skenes takes the mound for Pittsburgh with 162 strikeouts on the season despite a 9-10 record and 3.96 ERA, a classic case of a dominant arm not matching his win total. Miami counters with Eury Perez, who has been solid at 5-9 with a 3.61 ERA. The two clubs are nearly identical in the standings, and the moneyline reflects that at a near coin flip, PIT 52¢ / MIA 49¢, with $84.68K in volume making this the most balanced high-volume game tonight.

 

 

 

Best Value Plays on the Polymarket Prediction Market Board

Value on a Polymarket prediction market board shows up where the contract price and the underlying matchup quality appear out of step. A few spots are worth watching tonight for that reason.

Orioles @ Twins

Brandon Young has been excellent for Baltimore at 8-3 with a 3.43 ERA, while Bailey Ober has scuffled to a 4.45 ERA for Minnesota despite a 7-3 record built earlier in the season. That's a real gap in current form, yet the moneyline sits almost dead even at BAL 49¢ / MIN 52¢, tighter than the recent ERA split alone would suggest.

Rangers @ Angels

Cody Bradford makes a spot start for Texas with a clean slate in a small sample, while Ryan Johnson has struggled badly for the Angels at 7.11 ERA. Los Angeles sits 15 games under .500 and has been one of the league's most beatable home teams, yet the moneyline at TEX 57¢ / LAA 44¢ leaves the Angels priced higher than their season-long form might otherwise suggest given the pitching gap.

Guardians @ Tigers

Tanner Bibee owns a rough 4-11 record for Cleveland despite a respectable 3.85 ERA and 110 strikeouts, while Drew Anderson has been steady for Detroit at 4.01 ERA. Both clubs sit within a game of each other in the standings, and the moneyline reflects that balance closely at CLE 47¢ / DET 54¢.

High-Confidence MLB Predictions Based on Recent Performance

These are the games where recent form and starting pitching most clearly separate the two sides, based on the numbers behind each matchup.

  • Phillies @ Cardinals: Cristopher Sanchez has been the best pitcher in the National League this season at 15-4 with a 2.65 ERA and 174 strikeouts, and that gap against Andre Pallante's solid but lesser 3.63 ERA is priced at PHI 61¢ / STL 40¢.
  • Royals @ Dodgers: Michael Wacha's steady 3.44 ERA against Blake Snell's rough return from injury at a 12.00 ERA in a tiny sample, combined with LA's overall roster strength, produces the widest gap on the board at KC 29¢ / LAD 72¢.
  • Rays @ Athletics: Nick Martinez has been outstanding for Tampa Bay at 11-3 with a 2.65 ERA, well ahead of Mason Barnett's 5.56 ERA for Oakland, and that shows up at TB 62¢ / OAK 39¢.
  • Brewers @ Padres: Kyle Harrison's 9-2 record and 2.84 ERA stand well clear of Walker Buehler's 5.07 ERA this season, priced at MIL 54¢ / SD 47¢.

 

 

 

Riskier Picks with High Upside Tonight

These are the spots on the board carrying real volatility, where the pricing leaves more room for movement one way or another.

  • Angels moneyline at 44¢: Bradford is an unknown quantity for Texas in a limited MLB sample, and the Angels have shown flashes at home even in a tough overall season.
  • Diamondbacks moneyline at 63¢: Mitch Bratt has been sharp early for Arizona, but Tomoyuki Sugano has racked up 11 wins for Colorado, leaving more uncertainty here than the price alone suggests.
  • Astros @ Giants moneyline at 64¢ / 37¢: San Francisco's starter is still unannounced as of this board, which adds real variance to a game already carrying a lopsided price.
  • White Sox spread at 41¢: A pricier spread contract for Chicago, but Sean Burke has quietly put together a 3.08 ERA with 144 strikeouts and gives the Sox a real shot to cover regardless of how the moneyline resolves.

How to Approach Polymarket Prediction Markets for MLB Slates

Polymarket prediction market pricing works differently from a traditional sportsbook line. Contracts are quoted in cents from 0 to 100, and that number is the market's live implied probability for that outcome. A price like Dodgers 72¢ means the market currently views Los Angeles as roughly a 72 percent shot to win outright, and that number moves in real time as volume shifts. Reading the volume next to each matchup- that $99.45K on Mets-Braves or $86.87K on Mariners-Yankees- gives you a feel for which games the market has weighed in on hardest and where pricing is most efficient.

Treat tonight's fifteen-game board the same way you'd treat any pitching-driven MLB slate. Start with the starters, layer in recent team form and bullpen usage, then look at whether the moneyline, spread, or total contract best reflects your own read on the matchup. Volume-heavy games tend to be efficiently priced, so the games with a wider gap between the underlying performance data and the current cents price, like Orioles-Twins or Rangers-Angels tonight, are worth the closest look.

Run every matchup through our MLB Odds Finder to compare live pricing across markets, and check our Daily Strikeout Prop Finder if you want to dig into tonight's pitcher strikeout matchups.

Join the Fantasy Alarm Discord community for real-time slate discussion and line movement updates as first pitch approaches tonight.