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La Liga Sunday, October 18: 4 matches, odds and implied probabilities

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La Liga has 4 matches on Sunday, October 18. Below is the full slate with bookmaker prices and the probabilities those prices imply once the margin is removed.

Fixtures and odds

UTCMatchHomeDrawAwayImplied
12:00CA Osasuna vs Real Racing Club de Santander1.963.603.7248.2% / 26.3% / 25.5%
14:15Celta Vigo vs Alavés2.003.403.8047.2% / 27.9% / 24.9%
16:30Málaga vs Real Sociedad3.203.492.1829.6% / 27.1% / 43.4%
19:00Real Madrid vs Sevilla1.246.4910.5676.4% / 14.6% / 9.0%

Odds are decimal, averaged across 21 books (Pinnacle, Nordic Bet, Coolbet, William Hill, Tipico, Betclic (FR)). "Implied" strips the bookmaker margin so the numbers add up to 100%.

Match by match

CA Osasuna vs Real Racing Club de Santander

12:00 UTC

The market leans CA Osasuna at 48.2%. Prices come from 21 books, and they differ by 21.8% on the widest side.

Celta Vigo vs Alavés

14:15 UTC

The market leans Celta Vigo at 47.2%. Prices come from 21 books, and they differ by 14.3% on the widest side.

Málaga vs Real Sociedad

16:30 UTC

The market leans Real Sociedad at 43.4%. Prices come from 21 books, and they differ by 11.7% on the widest side.

Real Madrid vs Sevilla

19:00 UTC

The market leans Real Madrid at 76.4%. Prices come from 21 books, and they differ by 42.0% on the widest side.

What the market is saying

  • Closest on paper — Málaga vs Real Sociedad: 29.6% vs 43.4%.
  • Most one-sided — Real Madrid vs Sevilla: the market gives Real Madrid 76.4%.
  • Where books disagree most — Real Madrid vs Sevilla: 42.0% between the best and worst price.
  • Average bookmaker margin — 5.6% across the slate.

Reading the slate

The Sunday slate presents a sharp divide between mismatches and genuinely competitive encounters. Real Madrid versus Sevilla stands out as the most lopsided affair, with bookmakers pricing the home side at 76.4% to win—a probability that reflects a market expecting dominance rather than a close contest. The 42-point spread between highest and lowest implied probability at that fixture is by far the largest on the card, suggesting bookmakers see little uncertainty in the outcome. In contrast, the three earlier matches cluster around similar probability distributions, each with one team favored but none treated as a clear favorite across all three outcomes.

Osasuna against Racing and Celta against Alavés both present near-identical market structures, with home teams priced around 47-48% and draws hovering near 27%. The away sides in both matches sit in the 25-26% range, creating balanced matchups where no single outcome dominates. These two fixtures show the smallest book spread differentials on the card at 14.3% and 21.8% respectively, indicating tighter agreement among bookmakers about the likely distribution of outcomes.

The Málaga versus Real Sociedad fixture forms an interesting middle ground. While Sociedad arrives as the clear away favorite at 43.4%, Málaga's home advantage keeps them competitive at 29.6%, with a substantial 27.1% draw probability—the highest on the slate. The 11.7-point spread here is the tightest among all matches, suggesting bookmakers are most aligned on this particular matchup's structure.

More fixtures and odds

Prices captured 2026-10-13 00:01 UTC. Odds move.

La Liga Sunday, October 18: 4 matches, odds and implied probabilities

Comments (3)

  • humble5930

    Real Madrid at 1.24 is insane if you actually think Sevilla has a real shot, that spread is wild.

  • driftfern692

    That 42% variance on the Madrid-Sevilla odds across books is crazy, shows how split the market is despite the heavy favorite pricing.

  • velvet_fern

    Osasuna-Racing is basically a coin flip at 48% vs 26% vs 25%, but that 21.8% variance across books is brutal if you're trying to find value.