Wrexham AFC scores shown first. Bivariate Poisson with team xG from recent form — most-likely score ≠ most-likely winner.
Probabilities derived from a Poisson model on expected goals. Edge % shown only when the book posts both sides of a market.
Joint probability comes from the score grid (the truth). Naïve is what a book gets by multiplying legs — they undershoot correlated positive legs like "home + BTTS" and overshoot anti-correlated ones like "draw + over 2.5". Buy positive correlation; avoid negative.
Model probabilities Wrexham AFC 39.9% · Draw 30.3% · Watford FC 29.8% Why Wrexham AFC is favoured Elo essentially level (1500 vs 1505) — winner depends on context. Recent: Wrexham AFC 0W-1D-0L · Watford FC 1W-0D-0L (last 1). Goal differential per game: Wrexham AFC +0.0, Watford FC +1.0. Form depth Wrexham AFC: avg 1.0 goals scored, 1.0 conceded per game (0/1 on the road). Watford FC: avg 2.0 goals scored, 1.0 conceded per game (1/1 at home). But — counter-arguments Elo confidence is low (5%) — ratings are based on a thin sample, so the prediction itself is wider than the headline number suggests. Head-to-head 1 prior meetings — Wrexham AFC 0W, 1D, Watford FC 0W (draws are common). Last 2: 3-1, 2-2. Calibration Raw model: 42.3% home · Platt-calibrated down to 39.9% based on historical reliability across this sport's graded matches. Context Watford FC has 1 more day of rest (Wrexham AFC 4d, Watford FC 5d). Confidence note Elo data on these teams is thin (5% sample-size confidence); this is a low-conviction match overall — bet only with strong reason from outside the model.