Portsmouth 1-0 Accrington ST – Result & Analysis
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Poisson model favours Portsmouth (62%) — form and H2H data both point in the same direction as Portsmouth face Accrington ST.
✍️ Match Preview
Analysis & Preview
A League One encounter, Regular Season - 44 sees Accrington ST travel to Fratton Park to take on Portsmouth. The game is scheduled for Saturday 22 April 2023, 15:00 UTC.
Form Analysis
Looking at all fixtures this season, Portsmouth stand at 3W 5D 2L from 10 League One matches — 1.40 PPG. Last five: W D D D D. They are averaging 1.20 goals per game and conceding 1.00 — a modest attacking output that tempers optimism on the Over 2.5 market. 3 clean sheets from 10 outings provides some defensive foundation. Both teams have scored in 60% of their games — a high BTTS rate that carries real weight in the goals markets.
Portsmouth's form when playing at home: 5W 3D 2L across 10 games at Fratton Park this term (1.80 PPG). At home they are averaging 1.50 goals scored and 0.80 conceded per game. 5 clean sheets from 10 home games (50%) — they are an exceptionally hard side to score against at Fratton Park.
Accrington ST — All Games: 1W 1D 8L from 10 League One fixtures this season — 0.40 PPG. Last five: L W L L L. Their scoring rate of 0.80 per game is modest, conceding 2.50 — not a side to back heavily on the Over 2.5 from their form alone. Conceding 2.50 per game is a high rate — their defensive vulnerabilities have been exposed regularly this season. 1 clean sheet from 10 outings suggests some defensive organisation.
Accrington ST's form when playing away from home: 0W 4D 6L across 10 road games this term (0.40 PPG). Away from home they average 0.30 goals scored and 2.20 conceded per game. Away from home, both teams have scored in only 30% of games — a low rate that backs BTTS No when they travel.
Portsmouth are in the better shape of the two on current League One data — 1.00 PPG ahead (1.40 vs 0.40). That form margin is the baseline of a sensible selection even before other signals are layered in.
Head to Head
The rivalry is an even one: 2 wins apiece for Portsmouth, 0 for Accrington ST and 1 shared spoils from 3 past contests. Neither side holds a meaningful historical edge.
Goals have been a feature of this fixture. The last 3 meetings have averaged 4.0 per game — a rate that gives the Over 2.5 market a solid historical foundation. The most recent clash, on 14 Mar 2023, ended 3–1 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
Portsmouth in-play and half-time data (88 games, 43 at home): they score before half-time in 70% of fixtures in home games; when goalless at HT, a second-half goal follows 63% of the time; BTTS occurs in 56% of their matches (home games); Over 2.5 goals lands in 58% of games (home games).
Accrington ST in-play and half-time data (88 games, 43 at away): they score before half-time in 65% of fixtures in away 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 40% of their matches (away games); Over 2.5 goals lands in 51% of games (away games); they fail to score in 35% of games.
BTTS rates are mixed from the trading data — Portsmouth 50% versus Accrington ST 49%; no strong lean in either direction. The over/under 2.5 picture is inconclusive from the in-play data (Portsmouth 48% | Accrington ST 53%).
Poisson Model
The Poisson distribution model projects Portsmouth 1.63 xG and Accrington ST 0.59 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 0.949 / defence 0.882 | Accrington ST attack 0.597 / defence 1.292. League average goals — home 1.331 / away 1.115. Accrington ST bring a strong defensive rating of 1.292 — this is suppressing Portsmouth's projected output below what their attack strength alone would suggest. Data: 89 Portsmouth games / 88 Accrington ST games used (CurrentSeason).
Result probabilities: Portsmouth 62% | Draw 26% | Accrington ST 12%. Fair-value odds: Portsmouth 1.61 | Draw 3.85 | Accrington ST 8.33. The model has a clear lean to Portsmouth (62%) — a 50pp gap over the next-most-likely outcome reflects a meaningful statistical advantage.
Goals markets: Over 2.5 probability 38% | BTTS probability 37% | Total xG 2.22. Under 2.5 has a narrow probability edge at 62% — total xG of 2.22 is below the line but not decisively so. BTTS probability of 37% 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 Portsmouth at 62% — clear model lean. Current-season form corroborates the Poisson lean — partial multi-source support. Draw No Bet is worth pricing alongside the outright: 26% draw probability makes the stalemate a live outcome even at this conviction level.
The Poisson model projects 2.22 xG in total — Under 2.5 at 38% — Poisson-only — limited corroboration confidence — though H2H averaging only 4.0 goals per meeting points in the other direction.
On the BTTS market, Poisson puts 37% on No. Form rates corroborate: Portsmouth 40% | Accrington ST 30% BTTS from recent games.
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💡 Key Insights
🏟️ Match Context
• Fixture: Portsmouth vs Accrington ST | Competition: League One, Regular Season - 44 | Venue: Fratton Park • Kick-off: Saturday 22 Apr 2023, 15:00 UTC • Data inputs: H2H history, form splits, prediction model signals, and market pricing
📊 Statistical Prediction
• Poisson result probabilities: Portsmouth 62% | Draw 26% | Accrington ST 12% • Poisson goal markets: Over 2.5 38% | BTTS 37% | xG Portsmouth 1.63 / Accrington ST 0.59 • Poisson strength factors: Portsmouth attack 0.949 / def 0.882 | Accrington ST attack 0.597 / def 1.292 | league avg home 1.331 / away 1.115 • Poisson stance: Portsmouth (62%) — strong lean
🧮 Prediction Model
1.63
Portsmouth xG
Expected Goals
0.59
Accrington ST xG
37%
BTTS
66%
Over 1.5
38%
Over 2.5
18%
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 Portsmouth vs Accrington ST kick off?
Portsmouth vs Accrington ST kicked off at 15:00 on Saturday 22 April 2023 at Fratton Park.
What was the final score in Portsmouth vs Accrington ST?
Portsmouth 1 - 0 Accrington ST.
Where is Portsmouth vs Accrington ST being played?
The match is being played at Fratton Park.
What competition is Portsmouth vs Accrington ST part of?
Portsmouth vs Accrington ST is a Regular Season - 44 fixture in the League One (England).
Who is favourite to win Portsmouth vs Accrington ST?
Our statistical model gives Portsmouth a 62% chance of winning, Accrington ST a 12% chance, and a 26% chance of a draw — making Portsmouth the favourite.
Will both teams score in Portsmouth vs Accrington ST?
Our model estimates a 37% probability that both Portsmouth and Accrington ST will score (BTTS).
Will Portsmouth vs Accrington ST have over 2.5 goals?
Our model puts the probability of over 2.5 goals in this match at 38%.
What is the head-to-head record between Portsmouth and Accrington ST?
Record (3 meetings): Portsmouth 2W | Draws 1 | Accrington ST 0W.
What form are Portsmouth and Accrington ST in?
Portsmouth (all comps): 3W-5D-2L in 10 | 1.40 PPG | GF 1.20 / GA 1.00 | L5 W-D-D-D-D. Accrington ST (all comps): 1W-1D-8L in 10 | 0.40 PPG | GF 0.80 / GA 2.50 | L5 L-W-L-L-L.
🧮 Model Insight
Model Mechanics
Working from Portsmouth's attack rating (0.95) and Accrington ST's defence rating (1.29), the model arrives at 1.63 expected goals for the home side. The same calculation in reverse, Accrington ST's attack versus Portsmouth's defence, projects 0.59 expected goals for the visitors.
These ratings are built from 89/88 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 1-0 emerges as the single most likely result, at 16.4%. Close behind: 2-0 (14.5%), 0-0 (12.2%). Those top three scorelines alone account for 43% of the model's total probability mass — a relatively concentrated, predictable distribution for this fixture.
Most Likely Outcome
Portsmouth Win
62%
1.61
26%
3.90
12%
8.14
Top 3 Most Likely Scorelines
1 – 0
17.7%
Home win
Most likely
2 – 0
14.5%
Home win
0 – 0
10.9%
Draw
Expected Goals & Win Odds
1.63
Portsmouth xG
Total xG
2.22
0.59
Accrington ST xG
1.61
62%
Home win
3.90
26%
Draw
8.14
12%
Away win
Goals Markets
65%
Over 1.5
1.54
35%
Under 1.5
2.86
38%
Over 2.5
2.63
62%
Under 2.5
1.61
18%
Over 3.5
5.56
82%
Under 3.5
1.22
7%
Over 4.5
14.29
93%
Under 4.5
1.08
Match Markets
Both Teams to Score
37%
BTTS Yes
2.74
63%
BTTS No
1.58
Clean Sheet
56%
1.80
20%
5.11
Win to Nil
35%
2.90
2%
41.57
Score Probability Matrix (%)
| H \ A | 0 | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|
| 0 | 10.9 | 6.4 | 1.9 | 0.4 | 0.1 | – |
| 1 | 17.7 | 10.4 | 3.1 | 0.6 | 0.1 | – |
| 2 | 14.5 | 8.5 | 2.5 | 0.5 | 0.1 | – |
| 3 | 7.9 | 4.6 | 1.4 | 0.3 | – | – |
| 4 | 3.2 | 1.9 | 0.6 | 0.1 | – | – |
| 5 | 1.0 | 0.6 | 0.2 | – | – | – |
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 Portsmouth vs Accrington ST?
Our Poisson model rates 1-0 as the single most likely exact scoreline, at 16.4%.
How many goals are Portsmouth and Accrington ST expected to score?
The model projects 1.63 expected goals for Portsmouth and 0.59 for Accrington ST, a combined total of 2.22.
How confident is the prediction model for Portsmouth vs Accrington ST?
Reasonably confident — the model's leading outcome is rated at 62%, a clear lean rather than a toss-up.
📈 Form Insight
Where Both Sides Stand
Across their last 88 outings, Portsmouth have picked up 1.53 PPG on a 35W 30D 23L record — W-D-D-D-D across the most recent five.
Accrington ST's form line: 26W 21D 41L from 88 games, 1.12 PPG, last five L-W-L-L-L.
Put side by side, Portsmouth are the form team by 0.41 points per game — a gap wide enough to matter, though form alone rarely tells the whole story against Accrington ST.
Home Ground vs the Road
On home soil, Portsmouth have posted 1.81 PPG from 43 outings (21W 15D 7L).
On the road, Accrington ST have gone 8W 10D 25L from 43 away games — 0.79 PPG when travelling.
Comparing the two in their relevant venue splits, Portsmouth come out ahead — a more targeted read than the overall PPG figures above, since it strips out games played in the opposite context.
The Goals Picture
Portsmouth are averaging 1.41 goals scored and 1.11 conceded per game recently; Accrington ST are on 1.10 scored and 1.74 conceded.
Defensively: Portsmouth have kept a clean sheet in 38% of their games — worth knowing if you're weighing up clean-sheet or BTTS-No markets.
Last 88 Results — League One
Current season: same league only · Previous season: all leagues (covers promoted/relegated teams)
Portsmouth
Current Season
Accrington ST
Current Season
❓ Frequently Asked Questions
What form are Portsmouth and Accrington ST in coming into this match?
Portsmouth have gone 35W 30D 23L in their last 88 games (1.53 PPG), while Accrington ST have gone 26W 21D 41L in their last 88 (1.12 PPG).
Which team has the better venue record — Portsmouth at home or Accrington ST away?
Portsmouth's home record (1.81 PPG) is the stronger of the two venue-specific splits — Portsmouth at home: 1.81 PPG; Accrington ST away: 0.79 PPG.
Have Portsmouth or Accrington ST been keeping clean sheets recently?
Portsmouth have kept a clean sheet in 38% of their recent games, Accrington ST in 23%.
⚔️ Rivalry Insight
A Look Back
The fixture history between Portsmouth and Accrington ST runs to 4 recorded meetings, the earliest dating 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.
Digging Into the Numbers
Portsmouth have won the last 3 meetings between these two, a run that gives them the psychological edge coming in.
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.
Portsmouth's record when hosting Accrington ST specifically: 2W 0D 0L from 2 games — a narrower, venue-specific slice of the head-to-head picture.
Last 4 Meetings
3
Portsmouth
1
Draws
0
Accrington ST
Recent Meetings
❓ Frequently Asked Questions
What is the head-to-head record between Portsmouth and Accrington ST?
From 4 meetings on record, Portsmouth have won 3, Accrington ST have won 0, and 1 have been drawn.
When did Portsmouth and Accrington ST last play each other?
They last met on 22 April 2023, when Portsmouth 1-0 Accrington ST.
Who has won more matches between Portsmouth and Accrington ST?
Portsmouth have the better head-to-head record, with 3 wins from 4 meetings.
📈 Trading Insight
Half-Time Trends
Portsmouth are typically involved in an early goal — the half-time board shows at least one in 70% of their matches. They've gone in front at half-time 28% of the time. They've also shown some fight from behind, salvaging a draw or win after trailing at half-time in 12% of those situations.
Accrington ST are typically involved in an early goal — the half-time board shows at least one in 65% of their matches.
The Numbers That Matter
BTTS sits in mixed territory for this pairing — Portsmouth 56%, Accrington ST 40% — no strong lean either way from the trading data alone.
Over 2.5 has been close to a coin-flip for both sides — 58% (Portsmouth) and 51% (Accrington ST).
On the defensive side: Portsmouth keep a clean sheet in 37% of their matches; Accrington ST in 49%.
Current season: same league only. Previous season: all leagues (covers promoted/relegated teams). All = any venue | Venue = Portsmouth home games / Accrington ST away games. HT metrics require half-time score data — shown as — where unavailable.
❓ Frequently Asked Questions
Do both teams usually score when Portsmouth play Accrington ST?
Not especially — both teams scoring has occurred in only 56% of Portsmouth's recent matches and 40% of Accrington ST's, a rate that leans toward BTTS No.
Is Portsmouth vs Accrington ST usually a high-scoring fixture?
Not particularly — Over 2.5 goals has come in for only 58% of Portsmouth's recent games and 51% of Accrington ST's, pointing to a tighter contest.
Do Portsmouth and Accrington ST tend to score early?
Portsmouth have had a goal before half-time in 70% of their recent matches, Accrington ST in 65% — a useful reference point for first-half goal markets.
Prediction vindicated as Portsmouth edge out Accrington ST 1-0.
📝 Match Report
How It Unfolded
Portsmouth beat Accrington ST 1-0 at Fratton Park, Regular Season - 44, 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 Portsmouth 1.63 xG and Accrington ST 0.59 xG, a combined 2.22. The scoreboard read 1-0 for 1 actual goal. Both sides finished within a goal of their individual projections, so the scoreline sat close to the model's expected shape. Those figures were built on strength ratings of Portsmouth attack 0.95 / defence 0.88 against Accrington ST attack 0.60 / defence 1.29, drawn from 89/88 games (CurrentSeason).
On the result, the model split it Portsmouth 62% | Draw 26% | Accrington ST 12%, with Portsmouth to win its most likely call at 62%. The scoreboard confirmed the model's leading pick.
Goals & Markets
The model rated Over 2.5 goals at 38%. The game delivered 1, so it stayed under — the model's lean was correct. Over 1.5 had been 66% and missed. On both teams to score, the model sat at 37% and the match did not — another call in the model's favour. Historically the two sides average 51% Over 2.5 across their same-competition games (Portsmouth 48%, Accrington ST 53%), a base rate that pointed the other way from today's under. Their combined BTTS history runs at 49%, which matched the one-sided outcome.
Trading Patterns vs Reality
Portsmouth's trading profile (88 games, 43 home) set some clear expectations: BTTS lands in 50% of their matches — today it did not; they keep a clean sheet 38% of the time, and duly kept one.
Accrington ST's trading profile (88 games, 43 away) set some clear expectations: BTTS lands in 49% of their matches — today it did not; they fail to score in 35% of games, a blank that repeated today.
Form vs Result
On form, Portsmouth arrived the stronger side — 1.53 PPG against 1.12. The form guide was vindicated by the result. Portsmouth (home/away splits) conceded 0 against a 1.05 average — tighter than their form line. Accrington ST (home/away splits) conceded 1 against a 1.93 average — tighter than their form line.
Verdict
Grading the result against the stored data, 4 of 4 pre-match signals came in: result (hit), Over 2.5 (hit), BTTS (hit), form (hit). The data earned its keep here, calling the bulk of the fixture correctly.
💡 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.