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Poisson model rates FC Sion at 41%, yet other data sources diverge — this FC Sion vs FC ST. Gallen fixture contains genuine analytical tension.

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Fixture Analysis

It is a Super League clash, Relegation Round - 3 as FC Sion welcome FC ST. Gallen to Stade de Tourbillon. Kick-off is set for Tuesday 13 May 2025 at 19:30 UTC.

Recent Form

Across all Super League games this season, FC Sion have gone 2W 4D 4L from 10 outings — a 1.00 PPG return. Last five: L D L W D. They are averaging 0.90 goals per game and conceding 1.30 — a modest attacking output that tempers optimism on the Over 2.5 market. Both teams have scored in 70% of their games — a high BTTS rate that carries real weight in the goals markets.

FC Sion's form when playing at home: 5W 3D 2L across 10 games at Stade de Tourbillon this term (1.80 PPG). At home they are averaging 1.90 goals scored and 1.40 conceded per game. Both teams have scored in 90% of their home games — an outstanding BTTS rate that is a key data point for this fixture. Their home PPG of 1.80 is noticeably stronger than their overall 1.00 — FC Sion are significantly better at Stade de Tourbillon than their overall form suggests.

Looking at all fixtures this season, FC ST. Gallen stand at 3W 3D 4L from 10 Super League matches — 1.20 PPG. Last five: W D W D L. Their scoring rate of 0.90 per game is modest, conceding 1.50 — not a side to back heavily on the Over 2.5 from their form alone. 2 clean sheets from 10 outings suggests some defensive organisation.

FC ST. Gallen away from home this season: 2W 4D 4L from 10 away games — 1.00 PPG on the road. Away from home they average 0.80 goals scored and 1.30 conceded per game.

The form comparison is too close to call — 1.00 PPG (FC Sion) versus 1.20 (FC ST. Gallen). When the figures are this level, no pick can be reliably derived from recent results alone.

H2H

Despite the anticipated home advantage, FC ST. Gallen have the better historical record — 3 wins from 5 previous contests against 0 for FC Sion.

Goals have been a feature of this fixture. The last 5 meetings have averaged 3.0 per game — a rate that gives the Over 2.5 market a solid historical foundation. The most recent clash, on 21 Apr 2025, ended 0–1 with FC ST. Gallen winning.

The H2H provides genuine backing for the away side. FC ST. Gallen have won 3 of 5 previous encounters, and at 3.0 goals per game, the goals market also points upward. The away win and Over 2.5 combination has a historical case worth noting.

In-Play Profile

FC Sion in-play tendencies (35 games, 17 at home): they score before half-time in 71% of fixtures in home games; when goalless at HT, a second-half goal follows 90% of the time; two or more arrive in the second half on 50% of those occasions; BTTS occurs in 71% of their matches (home games); Over 2.5 goals lands in 53% of games (home games).

FC ST. Gallen in-play tendencies (35 games, 17 at away): they score before half-time in 71% of fixtures in away games; when goalless at HT, a second-half goal follows 91% of the time; BTTS occurs in 65% of their matches (away games); Over 2.5 goals lands in 41% of games (away games).

From a combined perspective, both sides have high BTTS rates — FC Sion 63% and FC ST. Gallen 63% — which reinforces the BTTS Yes angle from in-play data. The over/under 2.5 picture is inconclusive from the in-play data (FC Sion 49% | FC ST. Gallen 46%).

Poisson Model

The Poisson distribution model projects FC Sion 1.35 xG and FC ST. Gallen 1.12 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: FC Sion attack 0.925 / defence 1.155 | FC ST. Gallen attack 0.820 / defence 0.948. League average goals — home 1.537 / away 1.181. Data: 33 FC Sion games / 66 FC ST. Gallen games used (CurrentSeason).

Result probabilities: FC Sion 41% | Draw 28% | FC ST. Gallen 30%. Fair-value odds: FC Sion 2.44 | Draw 3.57 | FC ST. Gallen 3.33. This is a low-confidence result — no outcome exceeds 45%. The draw at 28% is a primary outcome, not an afterthought.

Goals markets: Over 2.5 probability 45% | BTTS probability 50% | Total xG 2.47. Under 2.5 has a narrow probability edge at 55% — total xG of 2.47 is below the line but not decisively so. BTTS probability of 50% is moderate — neither team is projected to score with enough certainty to make Yes a clear standalone call.

Our Verdict

Poisson rates FC Sion as the most likely outcome at 41% — marginal model lean. With a 28% draw probability, Draw No Bet on FC Sion offers a more defensible entry point than the straight win. The opposing side holds a 30% win probability per the model — this is not a banker and should be staked accordingly.

On the goals line, Poisson's 2.47 combined xG gives a 45% probability to Under 2.5 — Poisson-only — limited corroboration — though H2H averaging only 3.0 goals per meeting points in the other direction.

Poisson assigns a 50% probability to BTTS Yes based on the attack/defence strength model. Form rates corroborate: FC Sion 90% | FC ST. Gallen 50% BTTS from recent games.

The outsider holds a 30% win probability per the model — this is not a banker and should not be treated as one. Proportionate stakes are appropriate given the genuine contest the data projects.

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