Petrolul Ploiesti v Sepsi OSK Sfantu Gheorghe — prediction, stats and goal analysis

Liga I · Saturday, 17 October 2026 · 15:15. Final score 1–1 (half-time 1–1). Before kick-off we rated it 61% under 2.5 goals — the match finished with 2, so that call landed. That rating was frozen into a version-controlled ledger before the game and has not been touched since.

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Our ratings for this match

MarketYesNoOur call
Over 2.5 goals39%61%Under
Over 3.5 goals21%79%no pick
Both teams to score46%54%No

The result model puts Petrolul Ploiesti at 49%, the draw at 32% and Sepsi OSK Sfantu Gheorghe at 20%, from expected goals of 1.19 and 0.64.

Bookmaker prices and where we differ

MarketPriceImpliedOur ratingEdge
Over 2.5 goals2.0047%39%-8%
Under 2.5 goals1.8053%61%+8%
Both teams to score1.8051%46%-6%

Implied percentages have the bookmaker's margin removed, so they add to 100 and can be compared with our rating directly. Edge is simply the gap between the two. A positive edge means our model thinks the outcome is likelier than the price suggests — it is not a tip, and a high probability with a negative edge is a poor bet however safe it looks. Prices are a pre-match snapshot from a single bookmaker and move constantly.

Match odds: Petrolul Ploiesti 2.00, draw 3.20, Sepsi OSK Sfantu Gheorghe 3.30.

How we got this number

The league sets the starting point. Liga I has produced over 2.5 goals in 46% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. Petrolul Ploiesti have 5 in 11 this season (0 of 5 at home), Sepsi OSK Sfantu Gheorghe 2 in 11 (1 of 6 away). Those records are pulled toward the league rate with the weight of about 24 matches — enough that two or three unusual games cannot swing a rating — giving 46% and 37%.

Last season still counts, briefly. With 11 and 11 games played this season, last season's rates are still blended in and fade out entirely by game 40 — the point at which our testing showed they stop adding accuracy. A single season is part luck, so each club's record is first pulled toward the league average by 34 games' weight. That moves the two figures to 39% and 37%.

The mix. Weighted 40% home side, 40% away side and 20% league — the split that beat every alternative across 30,582 matches of testing — that gives 40%.

Head to head. These sides have met 5 times in three years, producing over 2.5 goals in 40%. That nudges the number 5% of the way toward the head-to-head pattern — deliberately small, because fixtures change more than reputations do — landing on 40%.

Goal expectation. Separately a Poisson model built from attack and defence strength — using real expected-goals data where the league has it — puts this match at 28%, from expected goals of 1.19 for Petrolul Ploiesti and 0.64 for Sepsi OSK Sfantu Gheorghe. Folding in 30% of that view gives 36%.

Calibration. Tested against 97,729 past matches, our ratings below 55% have run consistently too pessimistic — a figure in the high 30s, for instance, has come in about four points higher. So ratings in that range are lifted part-way back, giving 39%.

This breakdown is generated from the same inputs the rating uses, so it cannot describe a calculation we did not perform. The full model is set out in the methodology.

Season form

TeamGamesO2.5O3.5BTTS
Petrolul Ploiesti1145%36%36%
Sepsi OSK Sfantu Gheorghe1118%18%27%

Head to head

4 Apr 25Petrolul Ploiesti 2–1 Sepsi OSK Sfantu GheorgheO2.5
8 Mar 25Petrolul Ploiesti 1–0 Sepsi OSK Sfantu GheorgheU2.5
2 Nov 24Sepsi OSK Sfantu Gheorghe 1–1 Petrolul PloiestiU2.5
8 Mar 24Petrolul Ploiesti 1–2 Sepsi OSK Sfantu GheorgheO2.5
4 Nov 23Sepsi OSK Sfantu Gheorghe 0–0 Petrolul PloiestiU2.5
11 Nov 22Sepsi OSK Sfantu Gheorghe 2–0 Petrolul PloiestiU2.5

More: Petrolul Ploiesti season stats · Sepsi OSK Sfantu Gheorghe season stats · Liga I table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.