Bolton 1-1 Portsmouth – Result & Analysis
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Poisson model rates Bolton at 46%, yet other data sources diverge — this Bolton vs Portsmouth fixture contains genuine analytical tension.
✍️ Match Preview
Fixture Analysis
It is a League One clash, Regular Season - 40 as Bolton welcome Portsmouth to University of Bolton Stadium. Kick-off is set for Tuesday 5 April 2022 at 20:00 UTC.
Form Guide
Bolton — All Games: 5W 2D 3L from 10 League One outings this season, averaging 1.70 points per game. Last five: W D L W D. Offensively they are averaging 1.70 goals per game, with 1.10 conceded. 3 clean sheets from 10 outings provides some defensive foundation.
Bolton at University of Bolton Stadium this season: 6W 2D 2L from 10 home games — 2.00 PPG on home soil. They are averaging 2.20 goals per home game — a prolific scoring rate in front of their own fans. 4 home clean sheets from 10 games (40%) — a solid defensive base on their own ground.
Looking at all fixtures this season, Portsmouth stand at 6W 3D 1L from 10 League One matches — 2.10 PPG. Last five: W W D L D. Their attacking form is sharp — 2.10 goals per game is a high-output rate that commands respect in the goals markets. 4 clean sheets in 10 outings (40%) underlines their defensive solidity.
Portsmouth's form when playing away from home: 4W 3D 3L across 10 road games this term (1.50 PPG). Away from home they average 1.10 goals scored and 0.70 conceded per game. 5 away clean sheets from 10 games (50%) — they are as difficult to score against on the road as they are at home. Away from home, both teams have scored in only 30% of games — a low rate that backs BTTS No when they travel. Their away PPG of 1.50 is notably below their overall 2.10 — form away from home has been a clear weakness this season.
There is minimal separation in the form figures — Bolton at 1.70 PPG versus Portsmouth's 2.10. The form guide is not providing a strong directional steer; the model and market data will carry more weight in the final assessment.
Head to Head
The rivalry is an even one: 0 wins apiece for Bolton, 1 for Portsmouth and 0 shared spoils from 1 past contests. Neither side holds a meaningful historical edge.
These sides have historically produced few goals — 1.0 per contest from 1 previous meetings. The Under 2.5 market has a well-supported historical case here. The most recent clash, on 30 Oct 2021, ended 0–1 with Portsmouth winning.
With a balanced win record and just 1.0 goals per game historically, the H2H points toward a tight, low-scoring contest. Under 2.5 goals has the strongest statistical grounding from the fixture history regardless of which side wins.
Trading Patterns
Bolton in-play and half-time data (38 games, 18 at home): they score before half-time in 78% of fixtures in home games; when goalless at HT, a second-half goal follows 91% of the time; BTTS occurs in 39% of their matches (home games); Over 2.5 goals lands in 56% of games (home games); they fail to score in 37% of games.
Portsmouth in-play and half-time data (38 games, 18 at away): they score before half-time in 50% of fixtures in away games; when goalless at HT, a second-half goal follows 60% of the time; BTTS occurs in 39% of their matches (away games); Over 2.5 goals lands in 44% of games (away games); they keep a clean sheet 45% of the time.
BTTS rates are mixed from the trading data — Bolton 37% versus Portsmouth 42%; no strong lean in either direction. The over/under 2.5 picture is inconclusive from the in-play data (Bolton 47% | Portsmouth 53%).
Poisson Model
The Poisson distribution model projects Bolton 1.39 xG and Portsmouth 0.94 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: Bolton attack 1.247 / defence 0.977 | Portsmouth attack 0.820 / defence 0.998. League average goals — home 1.112 / away 1.174. Data: 40 Bolton games / 38 Portsmouth games used (CurrentSeason).
Result probabilities: Bolton 46% | Draw 29% | Portsmouth 25%. Fair-value odds: Bolton 2.17 | Draw 3.45 | Portsmouth 4.00. Bolton hold a narrow Poisson edge at 46% — the draw (29%) is close enough to merit draw-inclusive market consideration.
Goals markets: Over 2.5 probability 41% | BTTS probability 46% | Total xG 2.33. Under 2.5 has a narrow probability edge at 59% — total xG of 2.33 is below the line but not decisively so. BTTS probability of 46% 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 Bolton at 46% — moderate model lean. With a 29% draw probability, Draw No Bet on Bolton offers a more defensible entry point than the straight win.
The Poisson model projects 2.33 xG in total — Under 2.5 at 41% — Poisson-only — limited corroboration confidence.
On the BTTS market, Poisson puts 46% on No. Form rates corroborate: Bolton 40% | Portsmouth 30% BTTS from recent games.
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💡 Key Insights
🏟️ Match Context
• Fixture: Bolton vs Portsmouth | Competition: League One, Regular Season - 40 | Venue: University of Bolton Stadium • Kick-off: Tuesday 5 Apr 2022, 20:00 UTC • Data inputs: H2H history, form splits, prediction model signals, and market pricing
📊 Statistical Prediction
• Poisson result probabilities: Bolton 46% | Draw 29% | Portsmouth 25% • Poisson goal markets: Over 2.5 41% | BTTS 46% | xG Bolton 1.39 / Portsmouth 0.94 • Poisson strength factors: Bolton attack 1.247 / def 0.977 | Portsmouth attack 0.820 / def 0.998 | league avg home 1.112 / away 1.174 • Poisson stance: Bolton (46%) — moderate lean
🧮 Prediction Model
1.39
Bolton xG
Expected Goals
0.94
Portsmouth xG
46%
BTTS
68%
Over 1.5
41%
Over 2.5
21%
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 Bolton vs Portsmouth kick off?
Bolton vs Portsmouth kicked off at 20:00 on Tuesday 5 April 2022 at University of Bolton Stadium.
What was the final score in Bolton vs Portsmouth?
Bolton 1 - 1 Portsmouth.
Where is Bolton vs Portsmouth being played?
The match is being played at University of Bolton Stadium.
What competition is Bolton vs Portsmouth part of?
Bolton vs Portsmouth is a Regular Season - 40 fixture in the League One (England).
Who is favourite to win Bolton vs Portsmouth?
Our statistical model gives Bolton a 46% chance of winning, Portsmouth a 25% chance, and a 29% chance of a draw — making Bolton the favourite.
Will both teams score in Bolton vs Portsmouth?
Our model estimates a 46% probability that both Bolton and Portsmouth will score (BTTS).
Will Bolton vs Portsmouth have over 2.5 goals?
Our model puts the probability of over 2.5 goals in this match at 41%.
What is the head-to-head record between Bolton and Portsmouth?
Record (1 meetings): Bolton 0W | Draws 0 | Portsmouth 1W.
What form are Bolton and Portsmouth in?
Bolton (all comps): 5W-2D-3L in 10 | 1.70 PPG | GF 1.70 / GA 1.10 | L5 W-D-L-W-D. Portsmouth (all comps): 6W-3D-1L in 10 | 2.10 PPG | GF 2.10 / GA 0.90 | L5 W-W-D-L-D.
🧮 Model Insight
How the Model Works This Match
Working from Bolton's attack rating (1.25) and Portsmouth's defence rating (1.00), the model arrives at 1.39 expected goals for the home side. The same calculation in reverse, Portsmouth's attack versus Bolton's defence, projects 0.94 expected goals for the visitors.
These ratings are built from 40/38 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 14.4%. Close behind: 1-0 (11.9%), 0-0 (11.4%). Those top three scorelines alone account for 38% of the model's total probability mass — a relatively concentrated, predictable distribution for this fixture.
Most Likely Outcome
Bolton Win
46%
2.16
29%
3.45
25%
4.05
Top 3 Most Likely Scorelines
1 – 0
13.5%
Home win
Most likely
1 – 1
12.7%
Draw
0 – 0
9.8%
Draw
Expected Goals & Win Odds
1.39
Bolton xG
Total xG
2.33
0.94
Portsmouth xG
2.16
46%
Home win
3.45
29%
Draw
4.05
25%
Away win
Goals Markets
67%
Over 1.5
1.49
33%
Under 1.5
3.03
41%
Over 2.5
2.44
59%
Under 2.5
1.69
21%
Over 3.5
4.76
79%
Under 3.5
1.27
9%
Over 4.5
11.11
91%
Under 4.5
1.10
Match Markets
Both Teams to Score
46%
BTTS Yes
2.15
54%
BTTS No
1.87
Clean Sheet
39%
2.56
25%
3.99
Win to Nil
18%
5.52
6%
16.19
Score Probability Matrix (%)
| H \ A | 0 | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|
| 0 | 9.8 | 9.2 | 4.3 | 1.4 | 0.3 | 0.1 |
| 1 | 13.5 | 12.7 | 6.0 | 1.9 | 0.4 | 0.1 |
| 2 | 9.4 | 8.8 | 4.1 | 1.3 | 0.3 | 0.1 |
| 3 | 4.3 | 4.1 | 1.9 | 0.6 | 0.1 | – |
| 4 | 1.5 | 1.4 | 0.7 | 0.2 | – | – |
| 5 | 0.4 | 0.4 | 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 Bolton vs Portsmouth?
Our Poisson model rates 1-1 as the single most likely exact scoreline, at 14.4%.
How many goals are Bolton and Portsmouth expected to score?
The model projects 1.39 expected goals for Bolton and 0.94 for Portsmouth, a combined total of 2.33.
How confident is the prediction model for Bolton vs Portsmouth?
Not very — the model's leading outcome sits at just 46%, meaning this is rated as a genuinely open contest with no dominant favourite.
📈 Form Insight
Form at a Glance
Bolton's recent record stands at 17W 6D 15L from 38 games, a 1.50 PPG return, with W-D-L-W-D in the last five.
Portsmouth, meanwhile, have gone 16W 11D 11L across 38 games — 1.55 PPG, with W-W-D-L-D in their last five.
Form-wise this is close to level: Bolton on 1.50 PPG, Portsmouth on 1.55. Other factors will likely decide this one more than recent results.
Venue Form
At home specifically, Bolton have managed 10W 4D 4L from 18 games — 1.89 PPG in front of their own supporters.
Portsmouth's away record stands at 5W 6D 7L across 18 trips, a 1.17 PPG haul.
Comparing the two in their relevant venue splits, Bolton 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
Bolton are averaging 1.45 goals scored and 1.16 conceded per game recently; Portsmouth are on 1.39 scored and 1.03 conceded.
Defensively: Portsmouth in 45% — worth knowing if you're weighing up clean-sheet or BTTS-No markets.
Last 38 Results — League One
Current season: same league only · Previous season: all leagues (covers promoted/relegated teams)
Bolton
Current Season
Portsmouth
Current Season
❓ Frequently Asked Questions
What form are Bolton and Portsmouth in coming into this match?
Bolton have gone 17W 6D 15L in their last 38 games (1.50 PPG), while Portsmouth have gone 16W 11D 11L in their last 38 (1.55 PPG).
Which team has the better venue record — Bolton at home or Portsmouth away?
Bolton's home record (1.89 PPG) is the stronger of the two venue-specific splits — Bolton at home: 1.89 PPG; Portsmouth away: 1.17 PPG.
Have Bolton or Portsmouth been keeping clean sheets recently?
Bolton have kept a clean sheet in 29% of their recent games, Portsmouth in 45%.
⚔️ Rivalry Insight
Fixture History
6 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 — 13 April 2024, some 2 years back — so squads and form on both sides may look very different now.
Streaks & Records
The biggest gap between the sides came on 14 Jan 2023, when Bolton won 3-0 — the largest margin of victory on record between these two.
Bolton's record when hosting Portsmouth specifically: 1W 2D 0L from 3 games — a narrower, venue-specific slice of the head-to-head picture.
Last 6 Meetings
1
Bolton
2
Draws
3
Portsmouth
Recent Meetings
❓ Frequently Asked Questions
What is the head-to-head record between Bolton and Portsmouth?
From 6 meetings on record, Bolton have won 1, Portsmouth have won 3, and 2 have been drawn.
When did Bolton and Portsmouth last play each other?
They last met on 13 April 2024, when Bolton 1-1 Portsmouth.
Who has won more matches between Bolton and Portsmouth?
Portsmouth have the better head-to-head record, with 3 wins from 6 meetings.
📈 Trading Insight
First-Half Patterns
Bolton are typically involved in an early goal — the half-time board shows at least one in 78% 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 17% of those situations.
Portsmouth see a goal before the break in 50% of their matches.
Full-Time Trends
BTTS sits in mixed territory for this pairing — Bolton 39%, Portsmouth 39% — no strong lean either way from the trading data alone.
Over 2.5 has been close to a coin-flip for both sides — 56% (Bolton) and 44% (Portsmouth).
On the defensive side: Bolton keep a clean sheet in 39% of their matches; Portsmouth in 39%; Bolton have failed to score in 28% of games; Portsmouth in 44%.
Current season: same league only. Previous season: all leagues (covers promoted/relegated teams). All = any venue | Venue = Bolton 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 Bolton play Portsmouth?
Not especially — both teams scoring has occurred in only 39% of Bolton's recent matches and 39% of Portsmouth's, a rate that leans toward BTTS No.
Is Bolton vs Portsmouth usually a high-scoring fixture?
Not particularly — Over 2.5 goals has come in for only 56% of Bolton's recent games and 44% of Portsmouth's, pointing to a tighter contest.
Do Bolton and Portsmouth tend to score early?
Bolton have had a goal before half-time in 78% of their recent matches, Portsmouth in 50% — a useful reference point for first-half goal markets.
Bolton and Portsmouth share the spoils in a 1-1 draw.
📝 Match Report
How It Unfolded
Bolton and Portsmouth finished level at 1-1 at University of Bolton Stadium, Regular Season - 40, in the League One. With the result on the board, the sections below measure it against everything the model and the numbers projected in advance.
The Model vs The Result
The Poisson model went into this projecting Bolton 1.39 xG and Portsmouth 0.94 xG, a combined 2.33. 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 Bolton attack 1.25 / defence 0.98 against Portsmouth attack 0.82 / defence 1.00, drawn from 40/38 games (CurrentSeason).
On the result, the model split it Bolton 46% | Draw 29% | Portsmouth 25%, with Bolton to win its most likely call at 46%. The actual draw had been the model's second-ranked read at 29%, so the result diverged from the top call without being a shock.
Goals & Markets
The model rated Over 2.5 goals at 41%. The game delivered 2, so it stayed under — a call the model got right. Over 1.5 had been 68% and landed. On both teams to score, the model sat at 46% and the match saw both sides score — a miss on BTTS. Historically the two sides average 50% Over 2.5 across their same-competition games (Bolton 47%, Portsmouth 53%), a base rate that pointed the other way from today's under. Their combined BTTS history runs at 39%, which did not match the both-scored outcome.
Trading Patterns vs Reality
Bolton's trading profile (38 games, 18 home) set some clear expectations: BTTS lands in 37% of their matches — today it did.
Portsmouth's trading profile (38 games, 18 away) set some clear expectations: BTTS lands in 42% of their matches — today it did; they keep a clean sheet 45% of the time, and conceded here.
Form vs Result
The form lines were close — Bolton 1.50 PPG, Portsmouth 1.55 PPG — offering no strong steer, and the draw fit that even billing. Bolton (home/away splits) managed 1 against a 1.83 scoring average — below par going forward.
Verdict
Grading the result against the stored data, 1 of 3 pre-match signals came in: result (miss), Over 2.5 (hit), BTTS (miss). The data was on the wrong side of this result more often than not — a reminder that a single match sits well inside the model's variance.
💡 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.