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MLS Sunday, September 20: 10 matches, odds and implied probabilities

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MLS has 10 matches on Sunday, September 20. Below is the full slate with bookmaker prices and the probabilities those prices imply once the margin is removed.

Fixtures and odds

UTCMatchHomeDrawAwayImplied
00:30FC Dallas vs Austin FC1.644.064.4856.5% / 22.8% / 20.7%
00:30Houston Dynamo vs FC Cincinnati1.863.903.5550.0% / 23.8% / 26.2%
00:30Minnesota United FC vs LA Galaxy1.644.204.3356.5% / 22.1% / 21.4%
00:30Sporting Kansas City vs Philadelphia Union4.514.201.6220.6% / 22.1% / 57.4%
00:30St. Louis City SC vs Toronto FC1.624.134.5257.0% / 22.5% / 20.5%
01:30Nashville SC vs Chicago Fire1.793.853.8852.0% / 24.1% / 23.9%
01:30Colorado Rapids vs Seattle Sounders FC1.963.663.3847.3% / 25.3% / 27.4%
01:30Real Salt Lake vs Vancouver Whitecaps FC3.633.721.8825.6% / 24.9% / 49.5%
02:30Portland Timbers vs Atlanta United FC1.953.783.3347.6% / 24.5% / 27.9%
23:00Inter Miami CF vs San Diego FC1.474.785.1662.8% / 19.3% / 17.9%

Odds are decimal, averaged across 20 books (Unibet (SE), Unibet (NL), PMU (FR), LeoVegas (SE), Unibet (FR), Betclic (FR)). "Implied" strips the bookmaker margin so the numbers add up to 100%.

Match by match

FC Dallas vs Austin FC

00:30 UTC · Toyota Stadium, Toyota Stadium · Season record: FC Dallas 12-7-6 / Austin FC 7-8-10

The market leans FC Dallas at 56.5%. Prices come from 20 books, and they differ by 16.8% on the widest side.

Houston Dynamo vs FC Cincinnati

00:30 UTC · Shell Energy Stadium, Houston, Texas · Season record: Houston Dynamo 13-4-8 / FC Cincinnati 8-8-8

The market leans Houston Dynamo at 50.0%. Prices come from 20 books, and they differ by 17.9% on the widest side.

Minnesota United FC vs LA Galaxy

00:30 UTC · Allianz Field, Saint Paul, Minnesota · Season record: Minnesota United FC 7-8-10 / LA Galaxy 7-9-10

The market leans Minnesota United FC at 56.5%. Prices come from 20 books, and they differ by 17.7% on the widest side.

Sporting Kansas City vs Philadelphia Union

00:30 UTC · Sporting Park, Kansas City, Kansas · Season record: Sporting Kansas City 5-3-16 / Philadelphia Union 9-6-10

The market leans Philadelphia Union at 57.4%. Prices come from 20 books, and they differ by 17.8% on the widest side.

St. Louis City SC vs Toronto FC

00:30 UTC · Energizer Park, St. Louis, Missouri · Season record: St. Louis City SC 11-8-6 / Toronto FC 6-11-8

The market leans St. Louis City SC at 57.0%. Prices come from 20 books, and they differ by 18.3% on the widest side.

Nashville SC vs Chicago Fire

01:30 UTC · GEODIS Park, Nashville, Tennessee · Season record: Nashville SC 16-6-3 / Chicago Fire 11-6-7

The market leans Nashville SC at 52.0%. Prices come from 20 books, and they differ by 20.6% on the widest side.

Colorado Rapids vs Seattle Sounders FC

01:30 UTC · Dick's Sporting Goods Park, Commerce City, Colorado · Season record: Colorado Rapids 11-2-12 / Seattle Sounders FC 7-7-9

The market leans Colorado Rapids at 47.3%. Prices come from 20 books, and they differ by 15.9% on the widest side.

Real Salt Lake vs Vancouver Whitecaps FC

01:30 UTC · America First Field, Sandy, Utah · Season record: Real Salt Lake 8-5-11 / Vancouver Whitecaps FC 14-4-6

The market leans Vancouver Whitecaps FC at 49.5%. Prices come from 20 books, and they differ by 22.7% on the widest side.

Portland Timbers vs Atlanta United FC

02:30 UTC · Providence Park, Portland, Oregon · Season record: Portland Timbers 9-5-11 / Atlanta United FC 6-5-14

The market leans Portland Timbers at 47.6%. Prices come from 20 books, and they differ by 23.3% on the widest side.

Inter Miami CF vs San Diego FC

23:00 UTC · Nu Stadium, Miami, Florida · Season record: Inter Miami CF 12-9-4 / San Diego FC 8-6-11

The market leans Inter Miami CF at 62.8%. Prices come from 19 books, and they differ by 36.4% on the widest side.

What the market is saying

  • Closest on paper — Portland Timbers vs Atlanta United FC: 47.6% vs 27.9%.
  • Most one-sided — Inter Miami CF vs San Diego FC: the market gives Inter Miami CF 62.8%.
  • Where books disagree most — Inter Miami CF vs San Diego FC: 36.4% between the best and worst price.
  • Average bookmaker margin — 7.9% across the slate.

Reading the slate

The slate breaks into three tiers of decisiveness. Inter Miami against San Diego stands alone as the most lopsided matchup, with the home side priced at 62.8% and bookmakers showing the widest disagreement at 36.4% spread—a sign this fixture has genuinely divided the market. Three matches cluster around 56–57% for the favoured team: Dallas over Austin, Minnesota over LA Galaxy, and St. Louis over Toronto. These represent the comfortable-but-not-foregone category. By contrast, Sporting Kansas City faces Philadelphia as the day's clearest underdog scenario, with only 20.6% implied probability at home against a 57.4% away rating.

The closest contests sit in the 47–52% band. Houston-Cincinnati is essentially a coin flip at 50-50, while Nashville-Chicago (52-48) and Colorado-Seattle (47.3-27.4%) offer minimal separation between the top two outcomes. All three of these matches carry draw probabilities between 23.9% and 25.3%, suggesting the markets see genuine tactical balance. Real Salt Lake-Vancouver also sits close between the top two outcomes, though skewed decisively away: only 25.6% for the home side against 49.5% for Vancouver.

Margin consistency across the 20 bookmakers is tight overall, clustering between 7.7% and 8.4%, except for two outliers. Portland-Atlanta and Real Salt Lake-Vancouver show markedly higher spreads (23.3% and 22.7%) indicating less consensus, while Colorado-Seattle shows the tightest agreement at 15.9%. Inter Miami's 36.4% spread is the true anomaly of the day and warrants attention as a sign of genuine uncertainty despite the strong headline favourite odds.

More fixtures and odds

Prices captured 2026-09-15 00:02 UTC. Odds move.

MLS Sunday, September 20: 10 matches, odds and implied probabilities

コメント (1)

  • northanchor

    Inter Miami being favored at 62.8% makes sense given their form, but that's a pretty tight line against a new team like San Diego.