Portsmouth vs Charlton – Pre-Match Analysis

Poisson model rates Portsmouth at 42%, yet other data sources diverge — this Portsmouth vs Charlton fixture contains genuine analytical tension.

✍️ Match Preview

Analysis

Charlton make the trip to Fratton Park to face Portsmouth in Championship, Regular Season - 31. The match kicks off on Saturday 13 February 2027 at 15:00 UTC.

Current Form

Portsmouth's overall Championship record this term: 3W 3D 4L from 10 games (1.20 PPG). Last five: L L W D D. They are averaging 1.40 goals per game and conceding 1.70 — 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 70% of their games — a high BTTS rate that carries real weight in the goals markets. Portsmouth have played only a handful of Championship games so far this season, so this record also draws on matches from last season.

In front of their own supporters this season, Portsmouth have posted 3W 3D 4L at Fratton Park — 1.20 PPG. At home they are averaging 1.20 goals scored and 1.30 conceded per game.

Charlton (all games): 4W 3D 3L across 10 Championship outings this term — 1.50 points per game. Last five: D L D D L. Their scoring rate of 1.00 per game is modest, conceding 1.40 — not a side to back heavily on the Over 2.5 from their form alone. 3 clean sheets from 10 outings suggests some defensive organisation. Both teams have scored in 60% of their games — a noteworthy BTTS rate that supports the Yes market. This season is still relatively young for Charlton, so this record blends games from this season and last.

Charlton's form when playing away from home: 2W 5D 3L across 10 road games this term (1.10 PPG). Away from home they average 1.00 goals scored and 1.60 conceded per game. Both teams have scored in 80% of their away matches — a high BTTS rate on the road that directly informs this fixture.

Both sides are running at similar form levels — 1.20 PPG for Portsmouth against 1.50 for Charlton. There is no clear form edge to exploit here; other signals need to take the lead.

H2H Analysis

The head-to-head record is closely matched — Portsmouth lead 2W to 3W over the last 9 encounters, with 4 draws, though neither side has established a commanding advantage.

The 9 previous meetings have averaged 2.8 goals per game — a neutral rate that provides no strong lean on the goals market from the H2H alone. The most recent clash, on 12 Sep 2026, ended 0–0 with a draw.

The head-to-head offers no strong directional steer in either the result or goals markets. Form, the predictive model and current market pricing should carry more weight than the historical record for this fixture.

Trading

Portsmouth half-time and goal-timing data (53 games, 27 at home): they score before half-time in 74% of fixtures in home games; when goalless at HT, a second-half goal follows 80% of the time; BTTS occurs in 48% of their matches (home games); Over 2.5 goals lands in 41% of games (home games).

Charlton half-time and goal-timing data (53 games, 27 at away): they score before half-time in 44% of fixtures in away games; when goalless at HT, a second-half goal follows 85% of the time; BTTS occurs in 59% of their matches (away games); Over 2.5 goals lands in 41% of games (away games).

BTTS rates are mixed from the trading data — Portsmouth 55% versus Charlton 55%; no strong lean in either direction. The over/under 2.5 picture is inconclusive from the in-play data (Portsmouth 45% | Charlton 42%).

Poisson Model

The Poisson distribution model projects Portsmouth 1.56 xG and Charlton 1.30 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 0.902 / defence 1.157 | Charlton attack 0.897 / defence 1.153. League average goals — home 1.500 / away 1.255. Data: 53 Portsmouth games / 54 Charlton games used (CurrentSeason).

Result probabilities: Portsmouth 42% | Draw 28% | Charlton 30%. Fair-value odds: Portsmouth 2.38 | Draw 3.57 | Charlton 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 55% | BTTS probability 59% | 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 probability of 59% is moderate — 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 42% — marginal model lean. Draw probability of 28% warrants consideration of Double Chance or Draw No Bet on Portsmouth if the outright odds are short. 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 2.86 combined xG gives a 55% probability to Over 2.5 — reasonable, supported by H2H averaging 2.8 goals per meeting.

The Poisson model's BTTS call is Yes at 59%. Form rates corroborate: Portsmouth 50% | Charlton 80% 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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