Shrewsbury 1-1 Portsmouth – Result & Analysis
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Poisson model rates Shrewsbury at 38%, yet in-form Portsmouth provide a compelling counter-argument — this Shrewsbury vs Portsmouth fixture contains genuine analytical tension.
✍️ Match Preview
Match Analysis
Shrewsbury host Portsmouth at Montgomery Waters Meadow in League One, Regular Season - 42. Kick-off is scheduled for Saturday 15 April 2023 at 15:00 UTC.
Form Guide
Shrewsbury — All Games: 2W 2D 6L from 10 League One outings this season, averaging 0.80 points per game. Last five: W L L L L. They are averaging 0.90 goals per game and conceding 1.90 — a modest attacking output that tempers optimism on the Over 2.5 market. 2 clean sheets from 10 outings provides some defensive foundation.
Shrewsbury at Montgomery Waters Meadow this season: 7W 0D 3L from 10 home games — 2.10 PPG on home soil. They are averaging 2.00 goals per home game — a prolific scoring rate in front of their own fans. Their home PPG of 2.10 is noticeably stronger than their overall 0.80 — Shrewsbury are significantly better at Montgomery Waters Meadow than their overall form suggests.
Looking at all fixtures this season, Portsmouth stand at 5W 3D 2L from 10 League One matches — 1.80 PPG. Last five: W D W D D. Their scoring rate of 1.40 per game is modest, conceding 0.90 — 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.
On the road, Portsmouth have gone 4W 2D 4L from 10 away fixtures this term (1.40 PPG). Away from home they average 1.20 goals scored and 1.30 conceded per game. 4 clean sheets from 10 away games (40%) shows they are capable of shutting up shop on the road.
The form data does not support a straightforward home bias here. Portsmouth are 1.00 PPG ahead (1.80 vs 0.80), making them the form-guided selection despite the trip.
Head to Head
There is little to separate the sides historically. From 3 previous meetings, Shrewsbury have won 0, Portsmouth 2, with 1 draws — a balanced ledger that offers no obvious directional steer on its own.
The 3 previous meetings have averaged 2.0 goals per game — a neutral rate that provides no strong lean on the goals market from the H2H alone. The most recent clash, on 29 Oct 2022, ended 1–1 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 Patterns
Shrewsbury in-play and half-time data (86 games, 42 at home): they score before half-time in 76% of fixtures in home games; when goalless at HT, a second-half goal follows 65% of the time; BTTS occurs in 50% of their matches (home games); Over 2.5 goals lands in 52% of games (home games); they fail to score in 38% of games.
Portsmouth in-play and half-time data (86 games, 42 at away): they score before half-time in 64% of fixtures in away games; when goalless at HT, a second-half goal follows 62% of the time; BTTS occurs in 43% of their matches (away games); Over 2.5 goals lands in 40% of games (away games).
BTTS rates are mixed from the trading data — Shrewsbury 44% versus Portsmouth 49%; no strong lean in either direction. The over/under 2.5 picture is inconclusive from the in-play data (Shrewsbury 44% | Portsmouth 49%).
Poisson Model
The Poisson distribution model projects Shrewsbury 1.43 xG and Portsmouth 1.40 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: Shrewsbury attack 1.127 / defence 1.242 | Portsmouth attack 1.035 / defence 0.964. League average goals — home 1.319 / away 1.086. Data: 86 Shrewsbury games / 87 Portsmouth games used (CurrentSeason).
Result probabilities: Shrewsbury 38% | Draw 26% | Portsmouth 36%. Fair-value odds: Shrewsbury 2.63 | Draw 3.85 | Portsmouth 2.78. This is a low-confidence result — no outcome exceeds 45%. The draw at 26% is a primary outcome, not an afterthought.
Goals markets: Over 2.5 probability 54% | BTTS probability 58% | Total xG 2.83. Over/Under 2.5 is close to a coin-flip at 54%/46% — the total xG of 2.83 sits near the 2.5 margin; this is a low-edge market from a Poisson standpoint. BTTS probability of 58% 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 Shrewsbury at 38% — marginal model lean. Note a divergence: in-form Portsmouth (1.80 PPG) cuts against the Poisson lean — consider the strength-adjusted model over surface-level form results. With a 26% draw probability, Draw No Bet on Shrewsbury offers a more defensible entry point than the straight win. The opposing side holds a 36% win probability per the model — this is not a banker and should be staked accordingly.
Poisson projects 2.83 total expected goals, pointing to Over 2.5 at 54% probability — reasonable conviction, supported by form averaging 3.0 goals per game.
The Poisson model's BTTS call is Yes at 58%. Form rates are neutral: Shrewsbury 50% | Portsmouth 50%.
The outsider holds a 36% 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: Shrewsbury vs Portsmouth | Competition: League One, Regular Season - 42 | Venue: Montgomery Waters Meadow • Kick-off: Saturday 15 Apr 2023, 15:00 UTC • Data inputs: H2H history, form splits, prediction model signals, and market pricing
📊 Statistical Prediction
• Poisson result probabilities: Shrewsbury 38% | Draw 26% | Portsmouth 36% • Poisson goal markets: Over 2.5 54% | BTTS 58% | xG Shrewsbury 1.43 / Portsmouth 1.40 • Poisson strength factors: Shrewsbury attack 1.127 / def 1.242 | Portsmouth attack 1.035 / def 0.964 | league avg home 1.319 / away 1.086 • Poisson stance: Shrewsbury (38%) — low confidence — close contest
🧮 Prediction Model
1.43
Shrewsbury xG
Expected Goals
1.40
Portsmouth xG
58%
BTTS
78%
Over 1.5
54%
Over 2.5
31%
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 Shrewsbury vs Portsmouth kick off?
Shrewsbury vs Portsmouth kicked off at 15:00 on Saturday 15 April 2023 at Montgomery Waters Meadow.
What was the final score in Shrewsbury vs Portsmouth?
Shrewsbury 1 - 1 Portsmouth.
Where is Shrewsbury vs Portsmouth being played?
The match is being played at Montgomery Waters Meadow.
What competition is Shrewsbury vs Portsmouth part of?
Shrewsbury vs Portsmouth is a Regular Season - 42 fixture in the League One (England).
Who is favourite to win Shrewsbury vs Portsmouth?
Our statistical model gives Shrewsbury a 38% chance of winning, Portsmouth a 36% chance, and a 26% chance of a draw — making Shrewsbury the favourite.
Will both teams score in Shrewsbury vs Portsmouth?
Our model estimates a 58% probability that both Shrewsbury and Portsmouth will score (BTTS).
Will Shrewsbury vs Portsmouth have over 2.5 goals?
Our model puts the probability of over 2.5 goals in this match at 54%.
What is the head-to-head record between Shrewsbury and Portsmouth?
Record (3 meetings): Shrewsbury 0W | Draws 1 | Portsmouth 2W.
What form are Shrewsbury and Portsmouth in?
Shrewsbury (all comps): 2W-2D-6L in 10 | 0.80 PPG | GF 0.90 / GA 1.90 | L5 W-L-L-L-L. Portsmouth (all comps): 5W-3D-2L in 10 | 1.80 PPG | GF 1.40 / GA 0.90 | L5 W-D-W-D-D.
🧮 Model Insight
How the Model Works This Match
Working from Shrewsbury's attack rating (1.13) and Portsmouth's defence rating (0.96), the model arrives at 1.43 expected goals for the home side. The same calculation in reverse, Portsmouth's attack versus Shrewsbury's defence, projects 1.40 expected goals for the visitors.
These ratings are built from 86/87 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 13.4%. Close behind: 2-1 (8.5%), 1-2 (8.2%). Those top three scorelines alone account for 30% of the model's total probability mass — a relatively concentrated, predictable distribution for this fixture.
Most Likely Outcome
Shrewsbury Win
38%
2.66
26%
3.78
36%
2.78
Top 3 Most Likely Scorelines
1 – 1
11.8%
Draw
Most likely
1 – 0
8.5%
Home win
2 – 1
8.5%
Home win
Expected Goals & Win Odds
1.43
Shrewsbury xG
Total xG
2.83
1.40
Portsmouth xG
2.66
38%
Home win
3.78
26%
Draw
2.78
36%
Away win
Goals Markets
77%
Over 1.5
1.30
23%
Under 1.5
4.35
54%
Over 2.5
1.85
46%
Under 2.5
2.17
31%
Over 3.5
3.23
69%
Under 3.5
1.45
16%
Over 4.5
6.25
84%
Under 4.5
1.19
Match Markets
Both Teams to Score
58%
BTTS Yes
1.73
42%
BTTS No
2.38
Clean Sheet
25%
4.04
24%
4.19
Win to Nil
9%
10.74
9%
11.65
Score Probability Matrix (%)
| H \ A | 0 | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|
| 0 | 5.9 | 8.2 | 5.8 | 2.7 | 0.9 | 0.3 |
| 1 | 8.5 | 11.8 | 8.2 | 3.8 | 1.3 | 0.4 |
| 2 | 6.1 | 8.5 | 5.9 | 2.8 | 1.0 | 0.3 |
| 3 | 2.9 | 4.0 | 2.8 | 1.3 | 0.5 | 0.1 |
| 4 | 1.0 | 1.4 | 1.0 | 0.5 | 0.2 | – |
| 5 | 0.3 | 0.4 | 0.3 | 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 Shrewsbury vs Portsmouth?
Our Poisson model rates 1-1 as the single most likely exact scoreline, at 13.4%.
How many goals are Shrewsbury and Portsmouth expected to score?
The model projects 1.43 expected goals for Shrewsbury and 1.40 for Portsmouth, a combined total of 2.83.
How confident is the prediction model for Shrewsbury 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
Shrewsbury come into this having played 86 games, going 28W 21D 37L for 1.22 points per game. Their last five reads W-L-L-L-L.
On the other side, Portsmouth sit at 1.55 PPG from 86 outings (35W 28D 23L), a run that reads W-D-W-D-D across their last five.
Form-wise this is close to level: Shrewsbury on 1.22 PPG, Portsmouth on 1.55. Other factors will likely decide this one more than recent results.
Venue Form
Shrewsbury's home form reads 19W 9D 14L across 42 games on their own ground, a 1.57 PPG return.
Away from home, Portsmouth have taken 1.24 points per game from 42 outings (13W 13D 16L).
Goals in Recent Form
Shrewsbury are averaging 1.10 goals scored and 1.20 conceded per game recently; Portsmouth are on 1.42 scored and 1.12 conceded.
Defensively: Portsmouth in 38% — worth knowing if you're weighing up clean-sheet or BTTS-No markets.
Last 86 Results — League One
Current season: same league only · Previous season: all leagues (covers promoted/relegated teams)
Shrewsbury
Current Season
Portsmouth
Current Season
❓ Frequently Asked Questions
What form are Shrewsbury and Portsmouth in coming into this match?
Shrewsbury have gone 28W 21D 37L in their last 86 games (1.22 PPG), while Portsmouth have gone 35W 28D 23L in their last 86 (1.55 PPG).
Which team has the better venue record — Shrewsbury at home or Portsmouth away?
Shrewsbury's home record (1.57 PPG) is the stronger of the two venue-specific splits — Shrewsbury at home: 1.57 PPG; Portsmouth away: 1.24 PPG.
Have Shrewsbury or Portsmouth been keeping clean sheets recently?
Shrewsbury have kept a clean sheet in 28% of their recent games, Portsmouth in 38%.
⚔️ Rivalry Insight
Fixture History
6 meetings separate these sides on the data we hold, the series stretching back to August 2021. Every recorded meeting has come in League One. It has been a while since the last meeting — 6 April 2024, some 2 years back — so squads and form on both sides may look very different now.
Streaks & Records
Portsmouth go into this on the back of 2 straight wins in the series — the current momentum sits squarely with them.
The biggest gap between the sides came on 16 Dec 2023, when Portsmouth won 0-3 — the largest margin of victory on record between these two.
Shrewsbury's record when hosting Portsmouth specifically: 0W 1D 2L from 3 games — a narrower, venue-specific slice of the head-to-head picture.
Last 6 Meetings
0
Shrewsbury
2
Draws
4
Portsmouth
Recent Meetings
❓ Frequently Asked Questions
What is the head-to-head record between Shrewsbury and Portsmouth?
From 6 meetings on record, Shrewsbury have won 0, Portsmouth have won 4, and 2 have been drawn.
When did Shrewsbury and Portsmouth last play each other?
They last met on 6 April 2024, when Portsmouth 3-1 Shrewsbury.
Who has won more matches between Shrewsbury and Portsmouth?
Portsmouth have the better head-to-head record, with 4 wins from 6 meetings.
📈 Trading Insight
First-Half Patterns
Shrewsbury are typically involved in an early goal — the half-time board shows at least one in 76% of their matches. They've gone in front at half-time 26% of the time. They've also shown some fight from behind, salvaging a draw or win after trailing at half-time in 14% of those situations.
Portsmouth are typically involved in an early goal — the half-time board shows at least one in 64% of their matches. They've gone in front at half-time 29% of the time.
Full-Time Trends
BTTS sits in mixed territory for this pairing — Shrewsbury 50%, Portsmouth 43% — no strong lean either way from the trading data alone.
Over 2.5 has been close to a coin-flip for both sides — 52% (Shrewsbury) and 40% (Portsmouth).
On the defensive side: Portsmouth in 38%; Shrewsbury have failed to score in 33% of games; Portsmouth in 33%.
Current season: same league only. Previous season: all leagues (covers promoted/relegated teams). All = any venue | Venue = Shrewsbury 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 Shrewsbury play Portsmouth?
Not especially — both teams scoring has occurred in only 50% of Shrewsbury's recent matches and 43% of Portsmouth's, a rate that leans toward BTTS No.
Is Shrewsbury vs Portsmouth usually a high-scoring fixture?
Not particularly — Over 2.5 goals has come in for only 52% of Shrewsbury's recent games and 40% of Portsmouth's, pointing to a tighter contest.
Do Shrewsbury and Portsmouth tend to score early?
Shrewsbury have had a goal before half-time in 76% of their recent matches, Portsmouth in 64% — a useful reference point for first-half goal markets.
Shrewsbury and Portsmouth share the spoils in a 1-1 draw.
📝 Match Report
How It Unfolded
The points were shared at Montgomery Waters Meadow, Regular Season - 42, as Shrewsbury and Portsmouth drew 1-1 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 Shrewsbury 1.43 xG and Portsmouth 1.40 xG, a combined 2.83. The scoreboard read 1-1 for 2 actual goals. 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 Shrewsbury attack 1.13 / defence 1.24 against Portsmouth attack 1.03 / defence 0.96, drawn from 86/87 games (CurrentSeason).
On the result, the model split it Shrewsbury 38% | Draw 26% | Portsmouth 36%, with Shrewsbury to win its most likely call at 38%. The actual draw had been the model's second-ranked read at 26%, so the result diverged from the top call without being a shock.
Goals & Markets
The model rated Over 2.5 goals at 54%. The game delivered 2, so it stayed under — a miss for the goals model. Over 1.5 had been 78% and landed. On both teams to score, the model sat at 58% and the match saw both sides score — another call in the model's favour. Historically the two sides average 46% Over 2.5 across their same-competition games (Shrewsbury 44%, Portsmouth 49%), a base rate that agreed with today's under. Their combined BTTS history runs at 46%, which did not match the both-scored outcome.
Trading Patterns vs Reality
Shrewsbury's trading profile (86 games, 42 home) set some clear expectations: BTTS lands in 44% of their matches — today it did.
Portsmouth's trading profile (86 games, 42 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 — Shrewsbury 1.22 PPG, Portsmouth 1.55 PPG — offering no strong steer, and the draw fit that even billing.
Verdict
Grading the result against the stored data, 1 of 3 pre-match signals came in: result (miss), Over 2.5 (miss), BTTS (hit). 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.