Rio Ave 1-0 Chaves – Result & Analysis
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Poisson model rates Rio Ave at 40%, yet other data sources diverge — this Rio Ave vs Chaves fixture contains genuine analytical tension.
✍️ Match Preview
Fixture Analysis
It is a Primeira Liga clash, Regular Season - 22 as Rio Ave welcome Chaves to Estádio do Rio Ave Futebol Clube. Kick-off is set for Sunday 26 February 2023 at 15:30 UTC.
Form Analysis
Looking at all fixtures this season, Rio Ave stand at 3W 3D 4L from 10 Primeira Liga matches — 1.20 PPG. Last five: D L L W L. They are averaging 0.60 goals per game and conceding 0.70 — a modest attacking output that tempers optimism on the Over 2.5 market. Defensively, conceding just 0.70 per game is an exceptional defensive record — one of the tightest in the division. 5 clean sheets from 10 games (50%) is a standout defensive return — they are keeping their net clean in more than half their matches. Both teams have scored in only 20% of their games — a low BTTS rate that suggests clean sheets are a regular occurrence. This season is still relatively young for Rio Ave, so this record blends games from this season and last.
In front of their own supporters this season, Rio Ave have posted 5W 1D 4L at Estádio do Rio Ave Futebol Clube — 1.60 PPG. At home they are averaging 1.10 goals scored and 0.80 conceded per game. 4 home clean sheets from 10 games (40%) — a solid defensive base on their own ground. At home, both teams have scored in only 30% of games — reinforcing BTTS No as the home-venue-backed angle.
Chaves — All Games: 2W 5D 3L from 10 Primeira Liga fixtures this season — 1.10 PPG. Last five: D L W D L. Their scoring rate of 1.00 per game is modest, conceding 1.20 — not a side to back heavily on the Over 2.5 from their form alone. 2 clean sheets from 10 outings suggests some defensive organisation. Both teams have scored in 70% of their games — a noteworthy BTTS rate that supports the Yes market. This season is still relatively young for Chaves, so this record blends games from this season and last.
Chaves away from home this season: 3W 3D 4L from 10 away games — 1.20 PPG on the road. Away from home they average 0.80 goals scored and 1.40 conceded per game.
The form comparison is too close to call — 1.20 PPG (Rio Ave) versus 1.10 (Chaves). When the figures are this level, no pick can be reliably derived from recent results alone.
Head to Head
There is little to separate the sides historically. From 1 previous meetings, Rio Ave have won 0, Chaves 0, with 1 draws — a balanced ledger that offers no obvious directional steer on its own.
The 1 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 5 Sep 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.
In-Play Data
Rio Ave trading profile (21 games, 10 at home): they score before half-time in 60% of fixtures in home games; when goalless at HT, a second-half goal follows 75% of the time; BTTS occurs in 30% of their matches (home games); Over 2.5 goals lands in 20% of games (home games); they fail to score in 38% of games.
Chaves trading profile (21 games, 10 at away): they score before half-time in 70% of fixtures in away games; when goalless at HT, a second-half goal follows 50% of the time; two or more arrive in the second half on 50% of those occasions; BTTS occurs in 40% of their matches (away games); Over 2.5 goals lands in 40% of games (away games); they fail to score in 33% of games.
BTTS rates are mixed from the trading data — Rio Ave 38% versus Chaves 57%; no strong lean in either direction. Under 2.5 goals has backing from the in-play data — both teams register low Over 2.5 rates (Rio Ave 33% | Chaves 38%).
Poisson Model
The Poisson distribution model projects Rio Ave 1.02 xG and Chaves 0.80 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: Rio Ave attack 0.736 / defence 0.953 | Chaves attack 0.837 / defence 1.015. League average goals — home 1.369 / away 1.000. Rio Ave's attack strength of 0.736 is below the league average — the 1.02 xG projection reflects a team that scores at a discount to the division norm. Data: 21 Rio Ave games / 21 Chaves games used (CurrentSeason).
Result probabilities: Rio Ave 40% | Draw 32% | Chaves 28%. Fair-value odds: Rio Ave 2.50 | Draw 3.12 | Chaves 3.57. This is a low-confidence result — no outcome exceeds 45%. The draw at 32% is a primary outcome, not an afterthought.
Goals markets: Over 2.5 probability 28% | BTTS probability 35% | Total xG 1.82. Under 2.5 is the strongly backed market at 72% probability — total xG of 1.82 sits well below the 2.5 threshold. The model is projecting a tight, low-scoring match based on both sides' defensive quality. BTTS No has firm model support at 65% — Chaves's lower xG of 0.80 creates a meaningful probability of a scoring blank, which suppresses the BTTS Yes probability to 35%.
Our Verdict
Poisson rates Rio Ave as the most likely outcome at 40% — marginal model lean. With a 32% draw probability, Draw No Bet on Rio Ave offers a more defensible entry point than the straight win. The opposing side holds a 28% win probability per the model — this is not a banker and should be staked accordingly.
The Poisson model projects 1.82 xG in total — Under 2.5 at 28% — reasonable confidence, supported by form averaging 2.0 goals per game.
On the BTTS market, Poisson puts 35% on No. Form rates corroborate: Rio Ave 30% | Chaves 40% BTTS from recent games.
🔮 Your Prediction
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💡 Key Insights
🏟️ Match Context
• Fixture: Rio Ave vs Chaves | Competition: Primeira Liga, Regular Season - 22 | Venue: Estádio do Rio Ave Futebol Clube • Kick-off: Sunday 26 Feb 2023, 15:30 UTC • Data inputs: H2H history, form splits, prediction model signals, and market pricing
📊 Statistical Prediction
• Poisson result probabilities: Rio Ave 40% | Draw 32% | Chaves 28% • Poisson goal markets: Over 2.5 28% | BTTS 35% | xG Rio Ave 1.02 / Chaves 0.80 • Poisson strength factors: Rio Ave attack 0.736 / def 0.953 | Chaves attack 0.837 / def 1.015 | league avg home 1.369 / away 1.000 • Poisson stance: Rio Ave (40%) — low confidence — close contest
🧮 Prediction Model
1.02
Rio Ave xG
Expected Goals
0.80
Chaves xG
35%
BTTS
54%
Over 1.5
28%
Over 2.5
11%
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 Rio Ave vs Chaves kick off?
Rio Ave vs Chaves kicked off at 15:30 on Sunday 26 February 2023 at Estádio do Rio Ave Futebol Clube.
What was the final score in Rio Ave vs Chaves?
Rio Ave 1 - 0 Chaves.
Where is Rio Ave vs Chaves being played?
The match is being played at Estádio do Rio Ave Futebol Clube.
What competition is Rio Ave vs Chaves part of?
Rio Ave vs Chaves is a Regular Season - 22 fixture in the Primeira Liga (Portugal).
Who is favourite to win Rio Ave vs Chaves?
Our statistical model gives Rio Ave a 40% chance of winning, Chaves a 28% chance, and a 32% chance of a draw — making Rio Ave the favourite.
Will both teams score in Rio Ave vs Chaves?
Our model estimates a 35% probability that both Rio Ave and Chaves will score (BTTS).
Will Rio Ave vs Chaves have over 2.5 goals?
Our model puts the probability of over 2.5 goals in this match at 28%.
What is the head-to-head record between Rio Ave and Chaves?
Record (1 meetings): Rio Ave 0W | Draws 1 | Chaves 0W.
What form are Rio Ave and Chaves in?
Rio Ave (all comps): 3W-3D-4L in 10 | 1.20 PPG | GF 0.60 / GA 0.70 | L5 D-L-L-W-L. Chaves (all comps): 2W-5D-3L in 10 | 1.10 PPG | GF 1.00 / GA 1.20 | L5 D-L-W-D-L.
🧮 Model Insight
Model Mechanics
Working from Rio Ave's attack rating (0.74) and Chaves's defence rating (1.01), the model arrives at 1.02 expected goals for the home side. The same calculation in reverse, Chaves's attack versus Rio Ave's defence, projects 0.80 expected goals for the visitors.
These ratings are built from 21/21 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 0-0 emerges as the single most likely result, at 17.9%. Close behind: 1-1 (14.9%), 1-0 (14.8%). Those top three scorelines alone account for 48% of the model's total probability mass — a relatively concentrated, predictable distribution for this fixture.
Most Likely Outcome
Rio Ave Win
40%
2.50
32%
3.09
28%
3.61
Top 3 Most Likely Scorelines
1 – 0
16.6%
Home win
Most likely
0 – 0
16.2%
Draw
1 – 1
13.2%
Draw
Expected Goals & Win Odds
1.02
Rio Ave xG
Total xG
1.82
0.80
Chaves xG
2.50
40%
Home win
3.09
32%
Draw
3.61
28%
Away win
Goals Markets
54%
Over 1.5
1.85
46%
Under 1.5
2.17
28%
Over 2.5
3.57
72%
Under 2.5
1.39
11%
Over 3.5
9.09
89%
Under 3.5
1.12
4%
Over 4.5
25.00
96%
Under 4.5
1.04
Match Markets
Both Teams to Score
35%
BTTS Yes
2.84
65%
BTTS No
1.54
Clean Sheet
45%
2.22
36%
2.78
Win to Nil
18%
5.56
10%
10.05
Score Probability Matrix (%)
| H \ A | 0 | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|
| 0 | 16.2 | 12.9 | 5.1 | 1.4 | 0.3 | – |
| 1 | 16.6 | 13.2 | 5.3 | 1.4 | 0.3 | – |
| 2 | 8.5 | 6.8 | 2.7 | 0.7 | 0.1 | – |
| 3 | 2.9 | 2.3 | 0.9 | 0.2 | – | – |
| 4 | 0.7 | 0.6 | 0.2 | 0.1 | – | – |
| 5 | 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 Rio Ave vs Chaves?
Our Poisson model rates 0-0 as the single most likely exact scoreline, at 17.9%.
How many goals are Rio Ave and Chaves expected to score?
The model projects 1.02 expected goals for Rio Ave and 0.80 for Chaves, a combined total of 1.82.
How confident is the prediction model for Rio Ave vs Chaves?
Not very — the model's leading outcome sits at just 40%, meaning this is rated as a genuinely open contest with no dominant favourite.
📈 Form Insight
Where Both Sides Stand
Rio Ave come into this having played 21 games, going 6W 6D 9L for 1.14 points per game. Their last five reads D-L-L-W-L. The sample for Rio Ave is still a mix of this season and last, given how young the current campaign is.
On the other side, Chaves sit at 1.24 PPG from 21 outings (6W 8D 7L), a run that reads D-L-W-D-L across their last five. The sample for Chaves is still a mix of this season and last, given how young the current campaign is.
Form-wise this is close to level: Rio Ave on 1.14 PPG, Chaves on 1.24. Other factors will likely decide this one more than recent results.
Home Ground vs the Road
Rio Ave's home form reads 5W 1D 4L across 10 games on their own ground, a 1.60 PPG return. That's noticeably better than their 1.14 PPG overall — Rio Ave are a different proposition at home than their general record suggests.
Away from home, Chaves have taken 1.20 points per game from 10 outings (3W 3D 4L).
Comparing the two in their relevant venue splits, Rio Ave 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
Rio Ave are averaging 0.95 goals scored and 1.19 conceded per game recently; Chaves are on 1.00 scored and 1.29 conceded.
Last 21 Results — Primeira Liga
Current season: same league only · Previous season: all leagues (covers promoted/relegated teams)
Rio Ave
Blended
Chaves
Blended
❓ Frequently Asked Questions
What form are Rio Ave and Chaves in coming into this match?
Rio Ave have gone 6W 6D 9L in their last 21 games (1.14 PPG), while Chaves have gone 6W 8D 7L in their last 21 (1.24 PPG).
Which team has the better venue record — Rio Ave at home or Chaves away?
Rio Ave's home record (1.60 PPG) is the stronger of the two venue-specific splits — Rio Ave at home: 1.60 PPG; Chaves away: 1.20 PPG.
Have Rio Ave or Chaves been keeping clean sheets recently?
Rio Ave have kept a clean sheet in 33% of their recent games, Chaves in 19%.
⚔️ Rivalry Insight
A Look Back
The fixture history between Rio Ave and Chaves runs to 4 recorded meetings, the earliest dating back to September 2022. Every recorded meeting has come in Primeira Liga. It has been a while since the last meeting — 21 January 2024, some 1 year back — so squads and form on both sides may look very different now.
Digging Into the Numbers
Rio Ave's record when hosting Chaves specifically: 2W 0D 0L from 2 games — a narrower, venue-specific slice of the head-to-head picture.
Last 4 Meetings
2
Rio Ave
2
Draws
0
Chaves
Recent Meetings
❓ Frequently Asked Questions
What is the head-to-head record between Rio Ave and Chaves?
From 4 meetings on record, Rio Ave have won 2, Chaves have won 0, and 2 have been drawn.
When did Rio Ave and Chaves last play each other?
They last met on 21 January 2024, when Chaves 0-0 Rio Ave.
Who has won more matches between Rio Ave and Chaves?
Rio Ave have the better head-to-head record, with 2 wins from 4 meetings.
📈 Trading Insight
Half-Time Trends
Rio Ave are typically involved in an early goal — the half-time board shows at least one in 60% of their matches. They've gone in front at half-time 30% of the time.
Chaves are typically involved in an early goal — the half-time board shows at least one in 70% of their matches. They've also shown some fight from behind, salvaging a draw or win after trailing at half-time in 20% of those situations.
The Numbers That Matter
Clean sheets have been more common than shared scoring for these two — Rio Ave 30% BTTS, Chaves 40%. That points toward BTTS No as the trading lean.
Low-scoring games have been more typical here — Over 2.5 sits at just 20% for Rio Ave and 40% for Chaves.
On the defensive side: Rio Ave keep a clean sheet in 40% of their matches; Rio Ave have failed to score in 30% of games; Chaves in 40%.
Current season: same league only. Previous season: all leagues (covers promoted/relegated teams). All = any venue | Venue = Rio Ave home games / Chaves away games. HT metrics require half-time score data — shown as — where unavailable.
❓ Frequently Asked Questions
Do both teams usually score when Rio Ave play Chaves?
Not especially — both teams scoring has occurred in only 30% of Rio Ave's recent matches and 40% of Chaves's, a rate that leans toward BTTS No.
Is Rio Ave vs Chaves usually a high-scoring fixture?
Not particularly — Over 2.5 goals has come in for only 20% of Rio Ave's recent games and 40% of Chaves's, pointing to a tighter contest.
Do Rio Ave and Chaves tend to score early?
Rio Ave have had a goal before half-time in 60% of their recent matches, Chaves in 70% — a useful reference point for first-half goal markets.
Prediction vindicated as Rio Ave edge out Chaves 1-0.
📝 Match Report
How It Unfolded
Rio Ave beat Chaves 1-0 at Estádio do Rio Ave Futebol Clube, Regular Season - 22, in the Primeira Liga. 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 Rio Ave 1.02 xG and Chaves 0.80 xG, a combined 1.82. 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 Rio Ave attack 0.74 / defence 0.95 against Chaves attack 0.84 / defence 1.01, drawn from 21/21 games (CurrentSeason).
On the result, the model split it Rio Ave 40% | Draw 32% | Chaves 28%, with Rio Ave to win its most likely call at 40%. The result followed the model's preferred path, landing its top-rated outcome.
Goals & Markets
The model rated Over 2.5 goals at 28%. The game delivered 1, so it stayed under — in line with the projection. Over 1.5 had been 54% and missed. On both teams to score, the model sat at 35% and the match did not — another call in the model's favour. Historically the two sides average 36% Over 2.5 across their same-competition games (Rio Ave 33%, Chaves 38%), a base rate that agreed with today's under. Their combined BTTS history runs at 48%, which matched the one-sided outcome.
Trading Patterns vs Reality
Rio Ave's trading profile (21 games, 10 home) set some clear expectations: BTTS lands in 38% of their matches — today it did not; they keep a clean sheet 33% of the time, and duly kept one.
Chaves's trading profile (21 games, 10 away) set some clear expectations: BTTS lands in 57% of their matches — today it did not; they fail to score in 33% of games, a blank that repeated today.
Form vs Result
The form lines were close — Rio Ave 1.14 PPG, Chaves 1.24 PPG — offering no strong steer, and the Rio Ave win broke the near-deadlock. Rio Ave (home/away splits) conceded 0 against a 0.80 average — tighter than their form line. Chaves (home/away splits) managed 0 against a 0.80 scoring average — below par going forward.
Verdict
Grading the result against the stored data, 3 of 3 pre-match signals came in: result (hit), Over 2.5 (hit), BTTS (hit). A strong night for the model: the result sat comfortably inside what the pre-match data projected.
💡 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.