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Portsmouth vs Derby Prediction - Tuesday, 1 September 2026

Competition: Championship

Date: Tuesday, 1 September 2026

Kickoff Time: 02:45 (GMT+8)

Last Updated: 2026-08-31T17:22:20.588Z

AI Match Analysis Summary

Score8 AI predicts Portsmouth Win (1) for this Championship clash between Portsmouth and Derby on Tuesday, 1 September 2026. Our ensemble machine learning model assigns a 43% probability to a home win, 27% to a draw, and 30% to an away victory. The expected goals model forecasts 1.4 xG for Portsmouth and 1.2 xG for Derby, totaling 2.6 expected goals. Confidence level: Low. Recommended Market: Double Chance 1X (Home or Draw). Analysis based on recent form, historical head-to-head data, team strength ratings, and real-time odds from major bookmakers.

Score8 AI Pre-Match Prediction

Predicted Match Result (1X2)

AI Prediction: Portsmouth Win (1)

Confidence Level: Low

Recommended Market: Double Chance 1X (Home or Draw)

1X2 Win Probabilities

  • Home Win (1) - Portsmouth: 43%
  • Draw (X): 27%
  • Away Win (2) - Derby: 30%

Expected Goals (xG)

Portsmouth: 1.43 xG

Derby: 1.15 xG

Total Expected Goals: 2.58

Model Last Updated: 2026-08-30T13:17:49.685Z

Pre-Match Betting Odds (1xBet)

1X2 Match Result Odds

  • Home Win (Portsmouth): 2.19
  • Draw: 3.30
  • Away Win (Derby): 3.26

Over/Under 2.5 Goals

  • Over 2.5: 1.97
  • Under 2.5: 1.81

Asian Handicap 0

  • Portsmouth (0): 1.57
  • Derby (+0): 2.31

Odds Last Updated: 2026-08-31T14:23:14.008Z

Betting Value Analysis

Score8 AI compares model probabilities against market odds to identify value bets. When our AI probability is higher than the implied probability from bookmaker odds, this indicates potential value.

Home Win Edge: AI 43% vs Market 46% implied

Away Win Edge: AI 30% vs Market 31% implied

Disclaimer: Score8.ai provides AI-powered sports analytics for informational purposes only. We are not a betting site and do not accept wagers. Always gamble responsibly.

View our verified track record: Real Bet Results with PDF Verification

AI Prematch Analysis — Pre-Lineup

Portsmouth are favoured over Derby, with the model giving them a 42.8% win probability against Derby's 29.8% (27.4% draw), reflecting Portsmouth's higher expected scoring rate (lambda 1.43 vs 1.152, combining for 2.58 expected goals). The clearest market signal sits in the asian handicap block, where model probabilities diverge from market pricing at the 0, -0.25 and -0.75 lines in Portsmouth's favour, though the wider edge distribution (627 of 657 quotes negative) shows this is a narrow, not sweeping, mispricing. Over 2.5 goals sits close to a coinflip at 47.7%, and both teams to score is at 52.7%.

Portsmouth sit 15th with 3 points from three games (1 win, 2 losses, 5 scored, 6 conceded), while Derby are 21st with just 1 point (0 wins, 1 draw, 2 losses, 3 scored, 7 conceded) - both clubs have started the season shakily, and neither has recorded a home win yet this campaign. The model's view of the match, built on a lambda of 1.43 for Portsmouth and 1.152 for Derby (2.58 expected goals combined), leans toward Portsmouth without making them overwhelming favourites: a 42.8% win probability against 29.8% for Derby and 27.4% for a draw leaves plenty of room for either an away point or a stalemate, consistent with the most likely scorelines being 1-1 at 13.1%, 1-0 at 10.2%, 2-1 at 8.9% and 0-0 at 8.2% - none of them a runaway outcome. The asian handicap market is where the model's view diverges most from how bookmakers have priced the game: at the 0 line the model rates Portsmouth's win probability at 59.0% against a market-implied 55.6% (best price 1.8, edge 3.4%), and similar gaps appear at -0.25 (model 49.6% vs market 47.6%, price 2.1) and -0.75 (model 35.8% vs market 33.3%, price 3). Away value also looks slightly underpriced, with Derby's outright win at odds of 3.6 against a market-implied 27.8% versus the model's 29.8%, and the 1H over 1 goal line shows a similar small gap (model 50.8% vs market 48.8%, price 2.05). None of this should be read as the market being broadly wrong - of 657 quotes checked across all markets, only 30 showed a positive edge and 627 were negative, with the best gap at 3.4% and the worst at -9.0%, and margin sits at 5.0% across 13 bookmakers, so these pockets of divergence are the exception rather than the rule on a two-sided book where one side's edge is mirrored by the other's deficit. The five-game head-to-head history is mixed and doesn't strongly favour either side: Derby won 0-1 away in March 2026, the sides drew 1-1 in December 2025 and 2-2 in both April 2025 and April 2024, while Derby won 4-0 in December 2024. Lineups for this fixture have not yet been confirmed, so none of the figures above account for possible absences on either side - that should be checked closer to kickoff before treating any of these numbers as settled.

Home Win: 42.8%, Draw: 27.4%, Away Win: 29.8%

Expected Goals: 2.6 (Home xG: 1.43, Away xG: 1.15)

Most Likely Score: 1-1

Over 2.5: 47.7%, BTTS: 52.6%

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Portsmouth vs Derby
Championship · Sep 1, 2026
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