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Castres Olympique v Scarlets

Set a scoreline and see where it sits among the 5,000 simulated runs behind this fixture. Ratings as at 2026-10-19.

Your scoreline
Castres Olympique
–
Scarlets

The steppers skip 1, 2 and 4. Points come in fives, threes and twos with a conversion needing a try in front of it, so no match has ever finished on any of them.

Where that lands
Scarlets by 75+levelCastres Olympique by 75+

12.1% of runs finished in this bin — Castres Olympique by 8 to 12.

52 points is around the 56th percentile of the total — the middle run scored 49.

Those two figures are separate readings and are not multiplied together. The simulation draws the gap and the amount of scoring independently, so one bar of the histogram covers many scorelines and the payload holds nothing about which of them came up with which gap.

What the model says
Castres Olympique 72.0%Scarlets 25.5%average 31–20

Your pick agrees with the model on the more likely winner, Castres Olympique. Nothing here scores any of it. The model’s gap is an average over both winners and yours is one afternoon, so the two are different kinds of number rather than one being right. How the model works.

Why Castres Olympique are favoured

How the model arrives at the chance of Castres Olympique winning. It starts at an even 50%, and each line below adds to that or takes from it, in percentage points (pp): a bar to the right helps Castres Olympique, a bar to the left helps Scarlets.

Even match50.0%
Rating gap+14.6 pp

Castres Olympique 1456, Scarlets 1273 — 183 points, favouring Castres Olympique

Venue+14.5 pp

Castres Olympique are at home

Form and context-7.1 pp

Recent results, past meetings between the two sides, and days of rest. It has a limit, so it can nudge the rating but never overrule it.

Castres Olympique win72.0%
Scarlets win25.5%
Draw2.5%
The fixture

Castres Olympique and Scarlets have no fixture on the published schedule, so there is no ground, no kick-off forecast and no team sheet to put beside this. The prediction itself does not need any of them.

1 meetings — Castres Olympique 1, Scarlets 0. Last 2023: Castres Olympique 34–16 Scarlets.

None of this reaches the model. Weather is not a feature, team selection is not a feature and the record is already inside both ratings, so the probability above does not move because any of it changed.

Castres Olympique against Scarlets, as a shareable card

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Rugby Tournament Predictor — unofficial, and not affiliated with any union, club or competition. About and sourcesForecasts are probabilities, not predictions of one result.

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