Accrington ST 1-3 Portsmouth – Result & Analysis
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Poisson model rates Accrington ST at 38%, yet other data sources diverge — this Accrington ST vs Portsmouth fixture contains genuine analytical tension.
✍️ Match Preview
Match Analysis
Accrington ST host Portsmouth at Wham Stadium in League One, Regular Season - 21. Kick-off is scheduled for Tuesday 14 March 2023 at 19:45 UTC.
Form Guide
Accrington ST — All Games: 2W 4D 4L from 10 League One outings this season, averaging 1.00 points per game. Last five: W D W L D. They are averaging 0.60 goals per game and conceding 1.40 — a modest attacking output that tempers optimism on the Over 2.5 market. 3 clean sheets from 10 outings provides some defensive foundation.
In front of their own supporters this season, Accrington ST have posted 3W 2D 5L at Wham Stadium — 1.10 PPG. At home they are averaging 0.90 goals scored and 1.50 conceded per game.
Looking at all fixtures this season, Portsmouth stand at 4W 2D 4L from 10 League One matches — 1.40 PPG. Last five: W W W L L. Their scoring rate of 1.30 per game is modest, conceding 1.10 — not a side to back heavily on the Over 2.5 from their form alone. 4 clean sheets in 10 outings (40%) underlines their defensive solidity.
When travelling in League One this season, Portsmouth have posted 2W 3D 5L from 10 away outings — 0.90 PPG. Away from home they average 0.70 goals scored and 1.40 conceded per game. 4 clean sheets from 10 away games (40%) shows they are capable of shutting up shop on the road.
There is minimal separation in the form figures — Accrington ST at 1.00 PPG versus Portsmouth's 1.40. The form guide is not providing a strong directional steer; the model and market data will carry more weight in the final assessment.
H2H
The rivalry is an even one: 0 wins apiece for Accrington ST, 1 for Portsmouth and 1 shared spoils from 2 past contests. Neither side holds a meaningful historical edge.
The 2 previous encounters between these sides have been high-scoring affairs — 4.0 goals per contest on average. Historical precedent backs the Over 2.5 goals market. The most recent clash, on 5 Mar 2022, ended 0–4 with Portsmouth winning.
With the win record balanced, the strongest H2H-derived signal is in the goals market. At 4.0 goals per game historically, Over 2.5 is the cleaner angle to extract from the head-to-head data.
Trading Patterns
Accrington ST in-play and half-time data (80 games, 39 at home): they score before half-time in 74% of fixtures in home games; when goalless at HT, a second-half goal follows 76% of the time; two or more arrive in the second half on 52% of those occasions; BTTS occurs in 59% of their matches (home games); Over 2.5 goals lands in 54% of games (home games); they fail to score in 34% of games.
Portsmouth in-play and half-time data (80 games, 39 at away): they score before half-time in 62% of fixtures in away games; when goalless at HT, a second-half goal follows 63% of the time; BTTS occurs in 41% of their matches (away games); Over 2.5 goals lands in 41% of games (away games).
BTTS rates are mixed from the trading data — Accrington ST 50% versus Portsmouth 49%; no strong lean in either direction. The over/under 2.5 picture is inconclusive from the in-play data (Accrington ST 51% | Portsmouth 50%).
Poisson Model
The Poisson distribution model projects Accrington ST 1.21 xG and Portsmouth 1.09 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: Accrington ST attack 0.883 / defence 1.171 | Portsmouth attack 0.888 / defence 1.059. League average goals — home 1.292 / away 1.053. Data: 80 Accrington ST games / 81 Portsmouth games used (CurrentSeason).
Result probabilities: Accrington ST 38% | Draw 30% | Portsmouth 32%. Fair-value odds: Accrington ST 2.63 | Draw 3.33 | Portsmouth 3.12. This is a low-confidence result — no outcome exceeds 45%. The draw at 30% is a primary outcome, not an afterthought.
Goals markets: Over 2.5 probability 40% | BTTS probability 47% | Total xG 2.30. Under 2.5 has a narrow probability edge at 60% — total xG of 2.30 is below the line but not decisively so. BTTS probability of 47% is moderate — neither team is projected to score with enough certainty to make Yes a clear standalone call.
Summary & Verdict
The Poisson model's primary lean is Accrington ST at 38% — marginal model lean. With a 30% draw probability, Draw No Bet on Accrington ST offers a more defensible entry point than the straight win. The opposing side holds a 32% win probability per the model — this is not a banker and should be staked accordingly.
The Poisson model projects 2.30 xG in total — Under 2.5 at 40% — Poisson-only — limited corroboration confidence.
On the BTTS market, Poisson puts 47% on No. Form rates corroborate: Accrington ST 40% | Portsmouth 40% BTTS from recent games.
The outsider holds a 32% 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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💡 Key Insights
🏟️ Match Context
• Fixture: Accrington ST vs Portsmouth | Competition: League One, Regular Season - 21 | Venue: Wham Stadium • Kick-off: Tuesday 14 Mar 2023, 19:45 UTC • Data inputs: H2H history, form splits, prediction model signals, and market pricing
📊 Statistical Prediction
• Poisson result probabilities: Accrington ST 38% | Draw 30% | Portsmouth 32% • Poisson goal markets: Over 2.5 40% | BTTS 47% | xG Accrington ST 1.21 / Portsmouth 1.09 • Poisson strength factors: Accrington ST attack 0.883 / def 1.171 | Portsmouth attack 0.888 / def 1.059 | league avg home 1.292 / away 1.053 • Poisson stance: Accrington ST (38%) — low confidence — close contest
🧮 Prediction Model
1.21
Accrington ST xG
Expected Goals
1.09
Portsmouth xG
47%
BTTS
68%
Over 1.5
40%
Over 2.5
20%
Over 3.5
Full score-by-score matrix & model internals in the "Full Poisson Detail" section below ↓
⚠️ This analysis is generated algorithmically from statistical data and is intended for informational purposes only. It does not constitute betting advice. Please gamble responsibly.
❓ Frequently Asked Questions
What time does Accrington ST vs Portsmouth kick off?
Accrington ST vs Portsmouth kicked off at 19:45 on Tuesday 14 March 2023 at Wham Stadium.
What was the final score in Accrington ST vs Portsmouth?
Accrington ST 1 - 3 Portsmouth.
Where is Accrington ST vs Portsmouth being played?
The match is being played at Wham Stadium.
What competition is Accrington ST vs Portsmouth part of?
Accrington ST vs Portsmouth is a Regular Season - 21 fixture in the League One (England).
Who is favourite to win Accrington ST vs Portsmouth?
Our statistical model gives Accrington ST a 38% chance of winning, Portsmouth a 32% chance, and a 30% chance of a draw — making Accrington ST the favourite.
Will both teams score in Accrington ST vs Portsmouth?
Our model estimates a 47% probability that both Accrington ST and Portsmouth will score (BTTS).
Will Accrington ST vs Portsmouth have over 2.5 goals?
Our model puts the probability of over 2.5 goals in this match at 40%.
What is the head-to-head record between Accrington ST and Portsmouth?
Record (2 meetings): Accrington ST 0W | Draws 1 | Portsmouth 1W.
What form are Accrington ST and Portsmouth in?
Accrington ST (all comps): 2W-4D-4L in 10 | 1.00 PPG | GF 0.60 / GA 1.40 | L5 W-D-W-L-D. Portsmouth (all comps): 4W-2D-4L in 10 | 1.40 PPG | GF 1.30 / GA 1.10 | L5 W-W-W-L-L.
🧮 Model Insight
How the Model Works This Match
Working from Accrington ST's attack rating (0.88) and Portsmouth's defence rating (1.06), the model arrives at 1.21 expected goals for the home side. The same calculation in reverse, Portsmouth's attack versus Accrington ST's defence, projects 1.09 expected goals for the visitors.
These ratings are built from 80/81 games of current-season data — a full enough sample to trust.
The Exact-Score Picture
Run the expected-goals figures through the full scoreline distribution and 1-1 emerges as the single most likely result, at 14.9%. Close behind: 0-0 (11.7%), 1-0 (10.4%). Those top three scorelines alone account for 37% of the model's total probability mass — a relatively concentrated, predictable distribution for this fixture.
Most Likely Outcome
Accrington ST Win
38%
2.63
30%
3.38
32%
3.08
Top 3 Most Likely Scorelines
1 – 1
13.2%
Draw
Most likely
1 – 0
12.1%
Home win
0 – 1
10.9%
Away win
Expected Goals & Win Odds
1.21
Accrington ST xG
Total xG
2.30
1.09
Portsmouth xG
2.63
38%
Home win
3.38
30%
Draw
3.08
32%
Away win
Goals Markets
67%
Over 1.5
1.49
33%
Under 1.5
3.03
40%
Over 2.5
2.50
60%
Under 2.5
1.67
20%
Over 3.5
5.00
80%
Under 3.5
1.25
8%
Over 4.5
12.50
92%
Under 4.5
1.09
Match Markets
Both Teams to Score
47%
BTTS Yes
2.11
53%
BTTS No
1.90
Clean Sheet
33%
2.99
30%
3.35
Win to Nil
13%
7.87
10%
10.32
Score Probability Matrix (%)
| H \ A | 0 | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|
| 0 | 10.0 | 10.9 | 6.0 | 2.2 | 0.6 | 0.1 |
| 1 | 12.1 | 13.2 | 7.2 | 2.6 | 0.7 | 0.2 |
| 2 | 7.3 | 8.0 | 4.4 | 1.6 | 0.4 | 0.1 |
| 3 | 2.9 | 3.2 | 1.8 | 0.6 | 0.2 | – |
| 4 | 0.9 | 1.0 | 0.5 | 0.2 | 0.1 | – |
| 5 | 0.2 | 0.2 | 0.1 | – | – | – |
Green = home win · Grey = draw · Amber = away win · Outlined cell = most likely score
▶ Model Internals
❓ Frequently Asked Questions
What is the most likely scoreline for Accrington ST vs Portsmouth?
Our Poisson model rates 1-1 as the single most likely exact scoreline, at 14.9%.
How many goals are Accrington ST and Portsmouth expected to score?
The model projects 1.21 expected goals for Accrington ST and 1.09 for Portsmouth, a combined total of 2.30.
How confident is the prediction model for Accrington ST vs Portsmouth?
Not very — the model's leading outcome sits at just 38%, meaning this is rated as a genuinely open contest with no dominant favourite.
📈 Form Insight
Form at a Glance
Across their last 80 outings, Accrington ST have picked up 1.20 PPG on a 25W 21D 34L record — W-D-W-L-D across the most recent five.
Portsmouth's form line: 32W 25D 23L from 80 games, 1.51 PPG, last five W-W-W-L-L.
Form-wise this is close to level: Accrington ST on 1.20 PPG, Portsmouth on 1.51. Other factors will likely decide this one more than recent results.
Venue Form
On home soil, Accrington ST have posted 1.59 PPG from 39 outings (17W 11D 11L).
On the road, Portsmouth have gone 11W 12D 16L from 39 away games — 1.15 PPG when travelling.
Comparing the two in their relevant venue splits, Accrington ST come out ahead — a more targeted read than the overall PPG figures above, since it strips out games played in the opposite context.
Goals in Recent Form
Accrington ST are averaging 1.12 goals scored and 1.65 conceded per game recently; Portsmouth are on 1.41 scored and 1.15 conceded.
Defensively: Portsmouth in 38% — worth knowing if you're weighing up clean-sheet or BTTS-No markets.
Last 80 Results — League One
Current season: same league only · Previous season: all leagues (covers promoted/relegated teams)
Accrington ST
Current Season
Portsmouth
Current Season
❓ Frequently Asked Questions
What form are Accrington ST and Portsmouth in coming into this match?
Accrington ST have gone 25W 21D 34L in their last 80 games (1.20 PPG), while Portsmouth have gone 32W 25D 23L in their last 80 (1.51 PPG).
Which team has the better venue record — Accrington ST at home or Portsmouth away?
Accrington ST's home record (1.59 PPG) is the stronger of the two venue-specific splits — Accrington ST at home: 1.59 PPG; Portsmouth away: 1.15 PPG.
Have Accrington ST or Portsmouth been keeping clean sheets recently?
Accrington ST have kept a clean sheet in 24% of their recent games, Portsmouth in 38%.
⚔️ Rivalry Insight
Fixture History
4 meetings separate these sides on the data we hold, the series stretching back to October 2021. Every recorded meeting has come in League One. It has been a while since the last meeting — 22 April 2023, some 1 year back — so squads and form on both sides may look very different now.
Streaks & Records
Portsmouth go into this on the back of 3 straight wins in the series — the current momentum sits squarely with them.
The biggest gap between the sides came on 5 Mar 2022, when Portsmouth won 4-0 — the largest margin of victory on record between these two.
Accrington ST's record when hosting Portsmouth specifically: 0W 1D 1L from 2 games — a narrower, venue-specific slice of the head-to-head picture.
Last 4 Meetings
0
Accrington ST
1
Draws
3
Portsmouth
Recent Meetings
❓ Frequently Asked Questions
What is the head-to-head record between Accrington ST and Portsmouth?
From 4 meetings on record, Accrington ST have won 0, Portsmouth have won 3, and 1 have been drawn.
When did Accrington ST and Portsmouth last play each other?
They last met on 22 April 2023, when Portsmouth 1-0 Accrington ST.
Who has won more matches between Accrington ST and Portsmouth?
Portsmouth have the better head-to-head record, with 3 wins from 4 meetings.
📈 Trading Insight
First-Half Patterns
Accrington ST are typically involved in an early goal — the half-time board shows at least one in 74% of their matches. They've gone in front at half-time 33% of the time. They've also shown some fight from behind, salvaging a draw or win after trailing at half-time in 15% of those situations.
Portsmouth are typically involved in an early goal — the half-time board shows at least one in 62% of their matches.
Full-Time Trends
BTTS sits in mixed territory for this pairing — Accrington ST 59%, Portsmouth 41% — no strong lean either way from the trading data alone.
Over 2.5 has been close to a coin-flip for both sides — 54% (Accrington ST) and 41% (Portsmouth).
On the defensive side: Portsmouth in 38%; Portsmouth in 36%.
Current season: same league only. Previous season: all leagues (covers promoted/relegated teams). All = any venue | Venue = Accrington ST home games / Portsmouth away games. HT metrics require half-time score data — shown as — where unavailable.
❓ Frequently Asked Questions
Do both teams usually score when Accrington ST play Portsmouth?
Not especially — both teams scoring has occurred in only 59% of Accrington ST's recent matches and 41% of Portsmouth's, a rate that leans toward BTTS No.
Is Accrington ST vs Portsmouth usually a high-scoring fixture?
Not particularly — Over 2.5 goals has come in for only 54% of Accrington ST's recent games and 41% of Portsmouth's, pointing to a tighter contest.
Do Accrington ST and Portsmouth tend to score early?
Accrington ST have had a goal before half-time in 74% of their recent matches, Portsmouth in 62% — a useful reference point for first-half goal markets.
Portsmouth cruise to a comfortable 1-3 victory over Accrington ST.
📝 Match Report
How It Unfolded
Portsmouth beat Accrington ST 1-3 at Wham Stadium, Regular Season - 21, in the League One. That is the final score; the rest of this report grades it against what the data forecast beforehand.
The Model vs The Result
The Poisson model went into this projecting Accrington ST 1.21 xG and Portsmouth 1.09 xG, a combined 2.30. The scoreboard read 1-3 for 4 actual goals. Portsmouth outscored their 1.09 projection by 1.9. Those figures were built on strength ratings of Accrington ST attack 0.88 / defence 1.17 against Portsmouth attack 0.89 / defence 1.06, drawn from 80/81 games (CurrentSeason).
On the result, the model split it Accrington ST 38% | Draw 30% | Portsmouth 32%, with Accrington ST to win its most likely call at 38%. The actual Portsmouth win had been the model's second-ranked read at 32%, so the result diverged from the top call without being a shock.
Goals & Markets
The model rated Over 2.5 goals at 40%. The game delivered 4, so it went over — a miss for the goals model. Over 1.5 had been 68% and landed. Over 3.5 was 20% and came in. On both teams to score, the model sat at 47% and the match saw both sides score — a miss on BTTS. Historically the two sides average 51% Over 2.5 across their same-competition games (Accrington ST 51%, Portsmouth 50%), a base rate that agreed with today's over. Their combined BTTS history runs at 49%, which did not match the both-scored outcome.
Trading Patterns vs Reality
Accrington ST's trading profile (80 games, 39 home) set some clear expectations: BTTS lands in 50% of their matches — today it did.
Portsmouth's trading profile (80 games, 39 away) set some clear expectations: BTTS lands in 49% of their matches — today it did; they keep a clean sheet 38% of the time, and conceded here.
Form vs Result
The form lines were close — Accrington ST 1.20 PPG, Portsmouth 1.51 PPG — offering no strong steer, and the Portsmouth win broke the near-deadlock. Accrington ST (home/away splits) shipped 3 against a 1.46 concession average — a leakier day than usual. Portsmouth (home/away splits) scored 3 against a 1.00 average — above their attacking norm.
Verdict
Grading the result against the stored data, 0 of 3 pre-match signals came in: result (miss), Over 2.5 (miss), BTTS (miss). A poor return for the projections: the match defied the majority of what the numbers expected.
💡 Key Insights
⚠️ This match report is generated algorithmically from the final score, our prediction model, and each team's historical form and trading data. Analysis is for informational purposes only.