Osasuna vs Real Sociedad – Pre-Match Analysis

Poisson model rates Osasuna at 49%, yet other data sources diverge — this Osasuna vs Real Sociedad fixture contains genuine analytical tension.

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Fixture Analysis

It is a La Liga clash, Regular Season - 35 as Osasuna welcome Real Sociedad to Estadio El Sadar. Kick-off is set for Sunday 9 May 2027 at 15:00 UTC.

Recent Form

Across all La Liga games this season, Osasuna have gone 3W 1D 6L from 10 outings — a 1.00 PPG return. Last five: L L D W W. They are averaging 1.00 goals per game and conceding 1.30 — a modest attacking output that tempers optimism on the Over 2.5 market. 2 clean sheets from 10 outings provides some defensive foundation. Both teams have scored in 60% of their games — a high BTTS rate that carries real weight in the goals markets. Osasuna have played only a handful of La Liga games so far this season, so this record also draws on matches from last season.

Osasuna's form when playing at home: 4W 3D 3L across 10 games at Estadio El Sadar this term (1.50 PPG). At home they are averaging 1.20 goals scored and 1.10 conceded per game. Both teams have scored in 70% of their home games — an outstanding BTTS rate that is a key data point for this fixture. Their home PPG of 1.50 is noticeably stronger than their overall 1.00 — Osasuna are significantly better at Estadio El Sadar than their overall form suggests.

Looking at all fixtures this season, Real Sociedad stand at 1W 5D 4L from 10 La Liga matches — 0.80 PPG. Last five: D L L W D. Their scoring rate of 1.30 per game is modest, conceding 1.80 — not a side to back heavily on the Over 2.5 from their form alone. 1 clean sheet from 10 outings suggests some defensive organisation. Both teams have scored in 70% of their games — a noteworthy BTTS rate that supports the Yes market. Real Sociedad have played only a handful of La Liga games so far this season, so this record also draws on matches from last season.

When travelling in La Liga this season, Real Sociedad have posted 1W 3D 6L from 10 away outings — 0.60 PPG. Away from home they average 1.10 goals scored and 2.10 conceded per game. Both teams have scored in 70% of their away matches — a high BTTS rate on the road that directly informs this fixture.

The form figures are too closely matched to derive a directional pick: Osasuna 1.00 PPG, Real Sociedad 0.80 PPG. Look to other data sets to build the analysis.

Both teams score in over 70% of each side's relevant games (using home/away splits). At that combined rate, BTTS Yes is as well-evidenced as it gets — the data strongly backs two-way scoring.

Head to Head

Despite the anticipated home advantage, Real Sociedad have the better historical record — 6 wins from 10 previous contests against 3 for Osasuna.

The 10 previous meetings have averaged 2.3 goals per game — a neutral rate that provides no strong lean on the goals market from the H2H alone. The most recent clash, on 15 Mar 2026, ended 1–3 with Real Sociedad winning.

It is worth noting that Real Sociedad have a superior record in this fixture despite their visitor status — 6 wins from 10 meetings. Home advantage alone is not a sufficient reason to dismiss that track record.

In-Play Data

Osasuna trading profile (41 games, 20 at home): they score before half-time in 75% of fixtures in home games; when goalless at HT, a second-half goal follows 80% of the time; BTTS occurs in 70% of their matches (home games); Over 2.5 goals lands in 60% of games (home games); they fail to score in 32% of games.

Real Sociedad trading profile (41 games, 20 at away): they score before half-time in 85% of fixtures in away games; when goalless at HT, a second-half goal follows 88% of the time; BTTS occurs in 75% of their matches (away games); Over 2.5 goals lands in 45% of games (away games); Over 3.5 in 42%.

From a combined perspective, both sides have high BTTS rates — Osasuna 54% and Real Sociedad 76% — which reinforces the BTTS Yes angle from in-play data. The over/under 2.5 picture is inconclusive from the in-play data (Osasuna 49% | Real Sociedad 58%).

Poisson Model

The Poisson distribution model projects Osasuna 1.38 xG and Real Sociedad 0.87 xG. These expected goals figures are the primary input: they feed a goal-probability matrix across all scoreline combinations to derive the result and market probabilities below. Underlying strength ratings: Osasuna attack 0.788 / defence 0.850 | Real Sociedad attack 0.915 / defence 1.103. League average goals — home 1.589 / away 1.121. Osasuna's attack strength of 0.788 is below the league average — the 1.38 xG projection reflects a team that scores at a discount to the division norm. Data: 41 Osasuna games / 42 Real Sociedad games used (CurrentSeason).

Result probabilities: Osasuna 49% | Draw 28% | Real Sociedad 24%. Fair-value odds: Osasuna 2.04 | Draw 3.57 | Real Sociedad 4.17. Osasuna hold a narrow Poisson edge at 49% — the draw (28%) is close enough to merit draw-inclusive market consideration.

Goals markets: Over 2.5 probability 39% | BTTS probability 44% | Total xG 2.25. Under 2.5 has a narrow probability edge at 61% — total xG of 2.25 is below the line but not decisively so. BTTS probability of 44% is moderate — neither team is projected to score with enough certainty to make Yes a clear standalone call.

Summary & Verdict

Both sides post BTTS form rates above 65% but Poisson BTTS probability is only 44% — the model sees a defensive matchup that form results do not yet show.

The Poisson model's primary lean is Osasuna at 49% — moderate model lean. With a 28% draw probability, Draw No Bet on Osasuna offers a more defensible entry point than the straight win.

On the goals line, Poisson's 2.25 combined xG gives a 39% probability to Under 2.5 — Poisson-only — limited corroboration.

Poisson assigns a 44% probability to BTTS No based on the attack/defence strength model. This conflicts with form data: Osasuna 70% | Real Sociedad 70% from recent games — a notable divergence.

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