Portsmouth 2-2 Plymouth – Result & Analysis
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Poisson model rates Plymouth at 39%, yet other data sources diverge — this Portsmouth vs Plymouth fixture contains genuine analytical tension.
✍️ Match Preview
Analysis
Plymouth make the trip to Fratton Park to face Portsmouth in League One, Regular Season - 6. The match kicks off on Tuesday 21 September 2021 at 19:45 UTC.
Form
Portsmouth (all games): 3W 1D 3L across 7 League One fixtures this term — 1.43 PPG. Last five: W D L L L. They are averaging 0.71 goals per game and conceding 0.57 — a modest attacking output that tempers optimism on the Over 2.5 market. Defensively, conceding just 0.57 per game is an exceptional defensive record — one of the tightest in the division. 4 clean sheets from 7 games (57%) is a standout defensive return — they are keeping their net clean in more than half their matches. Both teams have scored in only 14% of their games — a low BTTS rate that suggests clean sheets are a regular occurrence. Portsmouth have played only a handful of League One games so far this season, so this record also draws on matches from last season.
Portsmouth's form when playing at home: 2W 0D 1L across 3 games at Fratton Park this term (2.00 PPG). At home they are averaging 1.33 goals scored and 0.67 conceded per game. 2 clean sheets from 3 home games (67%) — they are an exceptionally hard side to score against at Fratton Park. Their home PPG of 2.00 is noticeably stronger than their overall 1.43 — Portsmouth are significantly better at Fratton Park than their overall form suggests.
Plymouth's overall League One record this term: 4W 2D 1L from 7 games (2.00 PPG). Last five: D W D W W. Their scoring rate of 1.43 per game is modest, conceding 0.57 — not a side to back heavily on the Over 2.5 from their form alone. Defensively, 0.57 goals conceded per game is elite-level — a side this difficult to score against is a real threat to Over 2.5 and BTTS Yes. 4 clean sheets from 7 games (57%) is an exceptional defensive record — they are keeping clean sheets more often than not. Both teams have scored in just 29% of their games, reflecting a regular tendency to keep or record clean sheets. Plymouth have played only a handful of League One games so far this season, so this record also draws on matches from last season.
Plymouth away from home this season: 2W 0D 1L from 3 away games — 2.00 PPG on the road. Away from home they average 1.33 goals scored and 0.67 conceded per game. 2 away clean sheets from 3 games (67%) — they are as difficult to score against on the road as they are at home.
The travelling side arrive in better shape. Plymouth are 0.57 PPG clear of Portsmouth in recent League One fixtures (2.00 vs 1.43). Backing the visitors outright or on Draw No Bet are both valid approaches where the price allows.
Trading Data
Portsmouth goal-timing and half-time pattern breakdown (7 games, 3 at home): they score before half-time in 29% of fixtures; when goalless at HT, a second-half goal follows 80% of the time; BTTS occurs in 14% of their matches; Over 2.5 goals lands in 14% of games; they keep a clean sheet 57% of the time; they fail to score in 43% of games.
Plymouth goal-timing and half-time pattern breakdown (7 games, 3 at away): they score before half-time in 57% of fixtures; when goalless at HT, a second-half goal follows 100% of the time; BTTS occurs in 29% of their matches; Over 2.5 goals lands in 29% of games; they keep a clean sheet 57% of the time.
The in-play data supports BTTS No — both teams show low combined scoring rates (Portsmouth 14% | Plymouth 29%). Under 2.5 goals has backing from the in-play data — both teams register low Over 2.5 rates (Portsmouth 14% | Plymouth 29%).
Poisson Model
The Poisson distribution model projects Portsmouth 0.93 xG and Plymouth 1.10 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 0.974 / defence 1.099 | Plymouth attack 0.856 / defence 0.949. League average goals — home 1.008 / away 1.173. Data: 7 Portsmouth games / 7 Plymouth games used (CurrentSeason).
Result probabilities: Portsmouth 30% | Draw 30% | Plymouth 39%. Fair-value odds: Portsmouth 3.33 | Draw 3.33 | Plymouth 2.56. 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 33% | BTTS probability 41% | Total xG 2.04. Under 2.5 is the strongly backed market at 67% probability — total xG of 2.04 sits well below the 2.5 threshold. The model is projecting a tight, low-scoring match based on both sides' defensive quality. BTTS probability of 41% is moderate — neither team is projected to score with enough certainty to make Yes a clear standalone call.
Final Verdict
Poisson rates Plymouth as the most likely outcome at 39% — marginal model lean. Current-season form corroborates the Poisson lean — partial multi-source support. Draw probability of 30% warrants consideration of Double Chance or Draw No Bet on Plymouth 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.
The Poisson model projects 2.04 xG in total — Under 2.5 at 33% — reasonable confidence, supported by form averaging 2.0 goals per game.
Poisson assigns a 41% probability to BTTS No based on the attack/defence strength model. Form rates corroborate: Portsmouth 33% | Plymouth 0% 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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💡 Key Insights
🏟️ Match Context
• Fixture: Portsmouth vs Plymouth | Competition: League One, Regular Season - 6 | Venue: Fratton Park • Kick-off: Tuesday 21 Sep 2021, 19:45 UTC • Data inputs: H2H history, form splits, prediction model signals, and market pricing
📊 Statistical Prediction
• Poisson result probabilities: Portsmouth 30% | Draw 30% | Plymouth 39% • Poisson goal markets: Over 2.5 33% | BTTS 41% | xG Portsmouth 0.93 / Plymouth 1.10 • Poisson strength factors: Portsmouth attack 0.974 / def 1.099 | Plymouth attack 0.856 / def 0.949 | league avg home 1.008 / away 1.173 • Poisson stance: Plymouth (39%) — low confidence — close contest
🧮 Prediction Model
0.93
Portsmouth xG
Expected Goals
1.10
Plymouth xG
41%
BTTS
60%
Over 1.5
33%
Over 2.5
15%
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 Plymouth kick off?
Portsmouth vs Plymouth kicked off at 19:45 on Tuesday 21 September 2021 at Fratton Park.
What was the final score in Portsmouth vs Plymouth?
Portsmouth 2 - 2 Plymouth.
Where is Portsmouth vs Plymouth being played?
The match is being played at Fratton Park.
What competition is Portsmouth vs Plymouth part of?
Portsmouth vs Plymouth is a Regular Season - 6 fixture in the League One (England).
Who is favourite to win Portsmouth vs Plymouth?
Our statistical model gives Portsmouth a 30% chance of winning, Plymouth a 39% chance, and a 30% chance of a draw — making Plymouth the favourite.
Will both teams score in Portsmouth vs Plymouth?
Our model estimates a 41% probability that both Portsmouth and Plymouth will score (BTTS).
Will Portsmouth vs Plymouth have over 2.5 goals?
Our model puts the probability of over 2.5 goals in this match at 33%.
What is the head-to-head record between Portsmouth and Plymouth?
No recorded head-to-head meetings available in the dataset.
What form are Portsmouth and Plymouth in?
Portsmouth (all comps): 3W-1D-3L in 7 | 1.43 PPG | GF 0.71 / GA 0.57 | L5 W-D-L-L-L. Plymouth (all comps): 4W-2D-1L in 7 | 2.00 PPG | GF 1.43 / GA 0.57 | L5 D-W-D-W-W.
🧮 Model Insight
Where the Numbers Come From
The model rates Portsmouth's attack at 0.97x the league average against Plymouth's defence at 0.95x — combine the two and it projects 0.93 expected goals for the hosts. Flip it around — Plymouth's attack (0.86x) against Portsmouth's defence (1.10x) — and the away total comes out at 1.10.
These ratings are built from 7/7 games of current-season data — a full enough sample to trust.
Scoreline Breakdown
Of every possible scoreline, 1-1 carries the highest individual probability at 15.2% — still a long way from a near-certainty, which says something about how open this one is on paper. Close behind: 0-0 (14.8%), 0-1 (12.7%). 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
Plymouth Win
30%
3.29
30%
3.29
39%
2.55
Top 3 Most Likely Scorelines
0 – 1
14.4%
Away win
Most likely
1 – 1
13.4%
Draw
0 – 0
13.1%
Draw
Expected Goals & Win Odds
0.93
Portsmouth xG
Total xG
2.04
1.10
Plymouth xG
3.29
30%
Home win
3.29
30%
Draw
2.55
39%
Away win
Goals Markets
60%
Over 1.5
1.67
40%
Under 1.5
2.50
33%
Over 2.5
3.03
67%
Under 2.5
1.49
15%
Over 3.5
6.67
85%
Under 3.5
1.18
6%
Over 4.5
16.67
94%
Under 4.5
1.06
Match Markets
Both Teams to Score
41%
BTTS Yes
2.47
59%
BTTS No
1.68
Clean Sheet
33%
3.01
39%
2.54
Win to Nil
10%
9.92
15%
6.47
Score Probability Matrix (%)
| H \ A | 0 | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|
| 0 | 13.1 | 14.4 | 7.9 | 2.9 | 0.8 | 0.2 |
| 1 | 12.2 | 13.4 | 7.4 | 2.7 | 0.8 | 0.2 |
| 2 | 5.7 | 6.3 | 3.5 | 1.3 | 0.4 | 0.1 |
| 3 | 1.8 | 1.9 | 1.1 | 0.4 | 0.1 | – |
| 4 | 0.4 | 0.5 | 0.2 | 0.1 | – | – |
| 5 | 0.1 | 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 Portsmouth vs Plymouth?
Our Poisson model rates 1-1 as the single most likely exact scoreline, at 15.2%.
How many goals are Portsmouth and Plymouth expected to score?
The model projects 0.93 expected goals for Portsmouth and 1.10 for Plymouth, a combined total of 2.04.
How confident is the prediction model for Portsmouth vs Plymouth?
Not very — the model's leading outcome sits at just 39%, meaning this is rated as a genuinely open contest with no dominant favourite.
📈 Form Insight
Recent Form Overview
Portsmouth's recent record stands at 3W 1D 3L from 7 games, a 1.43 PPG return, with W-D-L-L-L in the last five. It's still early in the season for Portsmouth, so this record blends in a handful of games from last season too.
Plymouth, meanwhile, have gone 4W 2D 1L across 7 games — 2.00 PPG, with D-W-D-W-W in their last five. It's still early in the season for Plymouth, so this record blends in a handful of games from last season too.
The points-per-game comparison favours Plymouth by 0.57 — a real, if not enormous, edge over Portsmouth heading into this one.
How They Fare by Venue
At home specifically, Portsmouth have managed 2W 0D 1L from 3 games — 2.00 PPG in front of their own supporters. That's noticeably better than their 1.43 PPG overall — Portsmouth are a different proposition at home than their general record suggests.
Plymouth's away record stands at 2W 0D 1L across 3 trips, a 2.00 PPG haul.
Attack vs Defence
Portsmouth are averaging 0.71 goals scored and 0.57 conceded per game recently; Plymouth are on 1.43 scored and 0.57 conceded. Both sides have been difficult to break down recently — a combination that often points to a tighter, lower-scoring game than the average fixture.
On BTTS specifically: Portsmouth have seen both teams score in 14% of their recent games; Plymouth in 29%.
Defensively: Portsmouth have kept a clean sheet in 57% of their games; Plymouth in 57% — worth knowing if you're weighing up clean-sheet or BTTS-No markets.
Last 7 Results — League One
Current season: same league only · Previous season: all leagues (covers promoted/relegated teams)
Portsmouth
Early Season
Plymouth
Early Season
❓ Frequently Asked Questions
What form are Portsmouth and Plymouth in coming into this match?
Portsmouth have gone 3W 1D 3L in their last 7 games (1.43 PPG), while Plymouth have gone 4W 2D 1L in their last 7 (2.00 PPG).
Which team has the better venue record — Portsmouth at home or Plymouth away?
Portsmouth's home record (2.00 PPG) is the stronger of the two venue-specific splits — Portsmouth at home: 2.00 PPG; Plymouth away: 2.00 PPG.
Have Portsmouth or Plymouth been keeping clean sheets recently?
Portsmouth have kept a clean sheet in 57% of their recent games, Plymouth in 57%.
⚔️ Rivalry Insight
The Rivalry So Far
These sides have met 6 times that we have on record, stretching back to September 2021 — a rivalry that has played out across roughly 3 years. The pairing has crossed competitions too — League One, Championship all feature in the head-to-head log. It has been a while since the last meeting — 12 March 2025, some 3 years back — so squads and form on both sides may look very different now.
Notable Numbers
There's a clear current trend here: Plymouth have taken the last 3 head-to-head results.
Specifically as hosts in this fixture, Portsmouth have gone 0W 2D 1L from 3 meetings on their own ground against Plymouth — worth weighing alongside the overall series record.
Last 6 Meetings
0
Portsmouth
2
Draws
4
Plymouth
Recent Meetings
❓ Frequently Asked Questions
What is the head-to-head record between Portsmouth and Plymouth?
From 6 meetings on record, Portsmouth have won 0, Plymouth have won 4, and 2 have been drawn.
When did Portsmouth and Plymouth last play each other?
They last met on 12 March 2025, when Portsmouth 1-2 Plymouth.
Who has won more matches between Portsmouth and Plymouth?
Plymouth have the better head-to-head record, with 4 wins from 6 meetings.
📈 Trading Insight
Early Goal Trends
Portsmouth are typically involved in an early goal — the half-time board shows at least one in 67% of their matches. They've gone in front at half-time 33% of the time.
Plymouth are typically involved in an early goal — the half-time board shows at least one in 67% of their matches. They've gone in front at half-time 33% of the time.
Full-Time Markets
Neither side has been leaking BTTS chances often — 33% (Portsmouth) and 0% (Plymouth) both sit on the low side, favouring BTTS No.
Low-scoring games have been more typical here — Over 2.5 sits at just 33% for Portsmouth and 33% for Plymouth.
On the defensive side: Portsmouth keep a clean sheet in 67% of their matches; Plymouth in 67%; Plymouth in 33%.
Current season: same league only. Previous season: all leagues (covers promoted/relegated teams). All = any venue | Venue = Portsmouth home games / Plymouth away games. HT metrics require half-time score data — shown as — where unavailable.
❓ Frequently Asked Questions
Do both teams usually score when Portsmouth play Plymouth?
Not especially — both teams scoring has occurred in only 33% of Portsmouth's recent matches and 0% of Plymouth's, a rate that leans toward BTTS No.
Is Portsmouth vs Plymouth usually a high-scoring fixture?
Not particularly — Over 2.5 goals has come in for only 33% of Portsmouth's recent games and 33% of Plymouth's, pointing to a tighter contest.
Do Portsmouth and Plymouth tend to score early?
Portsmouth have had a goal before half-time in 67% of their recent matches, Plymouth in 67% — a useful reference point for first-half goal markets.
Portsmouth and Plymouth share the spoils in a 2-2 draw.
📝 Match Report
How It Unfolded
Portsmouth and Plymouth finished level at 2-2 at Fratton Park, Regular Season - 6, in the League One. The remainder of the report sets that outcome against the pre-match model, the markets and the teams' data profiles.
The Model vs The Result
The Poisson model went into this projecting Portsmouth 0.93 xG and Plymouth 1.10 xG, a combined 2.04. The scoreboard read 2-2 for 4 actual goals. Portsmouth beat their projection by 1.1 — clinical relative to the chances the model priced in. Plymouth outscored their 1.10 projection by 0.9. Those figures were built on strength ratings of Portsmouth attack 0.97 / defence 1.10 against Plymouth attack 0.86 / defence 0.95, drawn from 7/7 games (CurrentSeason).
On the result, the model split it Portsmouth 30% | Draw 30% | Plymouth 39%, with Plymouth to win its most likely call at 39%. The actual draw had been the model's second-ranked read at 30%, so the result diverged from the top call without being a shock.
Goals & Markets
The model rated Over 2.5 goals at 33%. The game delivered 4, so it went over — against the model's lean. Over 1.5 had been 60% and landed. Over 3.5 was 15% and came in. On both teams to score, the model sat at 41% and the match saw both sides score — a miss on BTTS. Historically the two sides average 21% Over 2.5 across their same-competition games (Portsmouth 14%, Plymouth 29%), a base rate that pointed the other way from today's over. Their combined BTTS history runs at 21%, which did not match the both-scored outcome.
Trading Patterns vs Reality
Portsmouth's trading profile (7 games, 3 home) set some clear expectations: BTTS lands in 14% of their matches — today it did; they keep a clean sheet 57% of the time, and conceded here.
Plymouth's trading profile (7 games, 3 away) set some clear expectations: BTTS lands in 29% of their matches — today it did; they keep a clean sheet 57% of the time, and conceded here.
Form vs Result
On form, Plymouth arrived the stronger side — 2.00 PPG against 1.43. The form guide was only half-right: the stronger side did not lose, but could not convert the edge into a win. Portsmouth (home/away splits) shipped 2 against a 0.67 concession average — a leakier day than usual. Plymouth (home/away splits) shipped 2 against a 0.67 concession average — a leakier day than usual.
Verdict
Grading the result against the stored data, 0 of 4 pre-match signals came in: result (miss), Over 2.5 (miss), BTTS (miss), form (miss). This one broke away from the data — most of the pre-match signals were overturned by how the ninety minutes actually played out.
💡 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.