Portsmouth 4-1 Northampton – Result & Analysis

Poisson model rates Portsmouth at 44% — neither recent form nor the head-to-head data gives a clear steer either way as Portsmouth face Northampton.

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Full Analysis

Fratton Park plays host to Portsmouth versus Northampton in League One (matchday 31). Kick-off: Saturday 3 February 2024 at 15:00 UK time.

Form & Momentum

Portsmouth have collected 1.50 PPG across their last 10 games: 4W 3D 3L. Last five: L L W W D. They are averaging 1.20 goals per game and conceding 1.10 — a modest attacking output that tempers optimism on the Over 2.5 market. 4 clean sheets in 10 games (40%) reflects a solid defensive base.

Portsmouth's form when playing at home: 6W 2D 2L across their last 10 home games (2.00 PPG). At home they are averaging 1.40 goals scored and 1.30 conceded per game. Their home PPG of 2.00 is noticeably stronger than their overall 1.50 — Portsmouth are significantly better at home than their overall form suggests.

Northampton (all games): 5W 2D 3L across their last 10 — 1.70 points per game. Last five: W W D W L. Their scoring rate of 1.40 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 (20%).

When travelling, Northampton have posted 4W 1D 5L from their last 10 away outings — 1.30 PPG. Away from home they average 1.30 goals scored and 1.80 conceded per game. BTTS has landed in 60% of their away games — meaningful support for the Yes angle in this specific context.

Both sides are running at similar form levels — 1.50 PPG for Portsmouth against 1.70 for Northampton. There is no clear form edge to exploit here; other signals need to take the lead.

Head-to-Head

Neither side has dominated the 1 H2H match in our data: 1 wins for Portsmouth, 0 for Northampton and 0 draws — leaving the H2H largely neutral. With only 1 H2H match to go on, treat this as a light input.

The 1 H2H match in our data have been high-scoring — 3.0 goals per game on average — which backs the Over 2.5 market from the head-to-head side. The most recent of those, on 2 Dec 2023, ended Portsmouth 3–0 Northampton — a Portsmouth win.

With the win record balanced, the strongest H2H signal is in the goals market — at 3.0 goals per game, Over 2.5 is the cleaner angle from the head-to-head data.

Trading Data

Portsmouth goal-timing and half-time pattern breakdown (last 74 games, 36 of them at home): at least one goal arrives before half-time in 67% of their matches in home games; when goalless at HT, a second-half goal follows 67% of the time; of the 16 games they trailed at half-time, they recovered to draw or win 38%; BTTS occurs in 56% of their matches (home games); Over 2.5 goals lands in 47% of games (home games); they keep a clean sheet 40% of the time.

Northampton goal-timing and half-time pattern breakdown (last 74 games, 36 of them away): at least one goal arrives before half-time in 69% of their matches in away games; when goalless at HT, a second-half goal follows 80% of the time; of the 23 games they led at half-time, they failed to win 26%; of the 20 games they trailed at half-time, they recovered to draw or win 30%; BTTS occurs in 53% of their matches (away games); Over 2.5 goals lands in 47% of games (away games).

BTTS rates are mixed from the trading data — Portsmouth 50% versus Northampton 53%; no strong lean in either direction. The over/under 2.5 picture is inconclusive from the in-play data (Portsmouth 45% | Northampton 50%). Note also that Northampton surrender HT leads in 26% of cases while Portsmouth recover from half-time deficits to draw or win 38% of the time — a dynamic that could influence in-play positioning.

Poisson Model

The Poisson distribution model projects Portsmouth 1.58 xG and Northampton 1.28 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: Portsmouth attack 0.954 / defence 1.095 | Northampton attack 1.019 / defence 1.261. League average goals — home 1.313 / away 1.151. Northampton's defence rating of 1.261 (above 1 = concedes more than average) is pushing Portsmouth's projected output up. Data: built from Portsmouth's last 76 games and Northampton's last 28.

Result probabilities: Portsmouth 44% | Draw 25% | Northampton 31%. Fair-value odds: Portsmouth 2.26 | Draw 4.04 | Northampton 3.23. This is a low-confidence result — no outcome reaches 45%. The draw at 25% is a primary outcome, not an afterthought.

Goals markets: Over 2.5 probability 55% | BTTS Yes probability 57% | Total xG 2.86. Over 2.5 holds a meaningful probability edge at 55% — the 2.86 total xG provides moderate support, though the model is not projecting a high-scoring game. BTTS Yes at 57% is only a slight lean — neither team is projected to score with enough certainty to make Yes a clear standalone call.

Verdict

The Poisson model's primary lean is Portsmouth at 44% — marginal model lean. Draw probability of 25% warrants consideration of Double Chance or Draw No Bet on Portsmouth if the outright odds are short. The opposing side holds a 31% win probability per the model — this is not a banker and should be staked accordingly.

The Poisson model projects 2.86 xG in total — Over 2.5 at 55% — reasonable conviction, supported by recent form (Portsmouth's last 10 home games and Northampton's last 10 away games) averaging 2.9 goals per game.

Poisson assigns a 57% probability to BTTS Yes based on the attack/defence strength model. Form rates corroborate — both teams scored in: Portsmouth 50% (last 10 home games) | Northampton 60% (last 10 away games).

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