Roma vs Slovan Bratislava prediction: the Jarvis supercomputer's verdict

Three scenarios at the Stadio Olimpico, and the one place Roma could slip

The first scenario is a Roma win, at 84%, and Jarvis chooses 3–0 as the predicted score: that scoreline alone carries 11%, the highest of any, with 2–0 at 11% and 4–0 at 9% right behind. All three are clean-sheet wins, so the picture inside this scenario is fairly consistent. Everything in that scenario turns on one question: can Roma keep a clean sheet?

The second scenario is a draw, at 11%, and the third is a Slovan win, at 5%. Roughly speaking, it takes about twenty games like this one for Slovan to win once. That sounds remote, but 11% for a draw is not small: about one in nine.

Roma: five games, three clean sheets and one 3–4 defeat

Roma's last five games come in exactly two kinds of result: a clean sheet, or a goal-fest against. They beat Torino 2–0, drew 2–2 with Inter, drew 0–0 at Como, lost 3–4 to Real Madrid and then beat Genoa 2–0 in their latest game. There is no result in between: they are either watertight or wide open.

In all Roma scored 9 and conceded 6, and in three of the five games they did not concede. This is a side with a defence good enough to win, but not steady enough to relax.

The three goals in the defeat to Real Madrid at home show Roma can still trouble a very strong opponent, even though the defence leaked four times on this occasion. The win over Genoa right after that fall is a positive sign: Roma know how to get back up.

Slovan Bratislava: winning in their domestic competitions, but Europe has given them no points yet

Slovan have two contrasting faces. In the domestic competitions they beat Nitra 3–1 in the cup, beat Komárno 2–1, drew 1–1 with Skalica and then won 3–0 at Spartak Trnava in their latest domestic game. This is a side that knows how to win when the opposition is at its level.

In the Champions League they lost 1–6 to PSG and then 0–3 at home to Stuttgart, and they sit 36th with no points, having scored 1 and conceded 9. A side conceding that much finds it hard to create a surprise.

The gap between those two faces is wide, and I read it as the gap between domestic football and the European stage rather than a verdict on the club. For a side like that, the realistic aim for this game is probably to stop it breaking open too early.

A memory of more than fifteen years: Slovan once got past Roma 2–1 over two games

The two met twice in August 2011, in the Europa League. Slovan won 1–0 at home on 18 August, then drew 1–1 in Rome on 25 August, coming out ahead 2–1 over the two games.

That was the most recent, and the only, meeting in the data I have. Fifteen years is enough for everything to change, and I do not use it as evidence.

But it makes a nice detail for this game: Roma have a small debt to repay.

Why Jarvis says 84% and expects nearly three goals for Roma

Jarvis expects Roma to score about 3.1 goals and Slovan only about 0.7, a gap of roughly 2.4 goals. That gap is wider than anything I can see in Roma's recent form. It says more about the opponent than about Roma themselves.

Expected total goals are about 3.7 and the chance of three goals or more is 72%, but the chance that both teams score is still close to half, at 47%, so a Slovan consolation goal would not be strange.

Confidence is medium, so I read 84% as a firm prediction, but not a promise. And a firm prediction can still be overturned by one poor night.

Roma are missing five, Slovan just one

Roma's absence list is fairly long: Bah (knee), Cristante (knee), Dybala (muscle), Koné (muscle) and Svilar (toe). Slovan are missing only Kukharevych.

Five absentees are not enough to reverse the picture, but they stop me treating 84% as a done deal. What I will watch is whether Roma have the depth to replace the absentees without losing their rhythm. The game is at the Stadio Olimpico in Rome, in the third round of the league phase.

Slovan need just one moment, Roma need a whole night of focus

A side at 5% does not win by strength, it wins by a moment: a set piece, a counter-attack. Roma conceded four against Real Madrid, so they know how frightening such a moment can be.

If Roma score early, 3–0 is a very easy scenario to see. If they let the game drag on without a goal, the story will grow heavier with every minute.

The game kicks off at 19:00 UTC on 20 October (02:00 on 21 October in Vietnam). This is statistical analysis, not betting advice.