Match predictor

Castres Olympique vs Vannes

What the model says about this fixture, at either ground and at a neutral one, with the record behind it. Ratings as at 2026-08-24.

Who wins, and where it is played
Castres Olympique at home27-22 average
Castres Olympique 62.4%draw 2.5%35.1% Vannes
Vannes at home27-22 average
Vannes 57.2%draw 2.5%40.3% Castres Olympique
Neutral ground25-24 average
Castres Olympique 51.3%draw 2.5%46.2% Vannes

Each figure is 5,000 simulations of this fixture. The score is where those runs are centred, not a likely scoreline — a rugby result is spread far too widely for any single one to be likely.

How the runs finished

Winning margin across 5,000 simulations of this fixture. Bars right of the centre are Castres Olympique wins; the faded bars at each end hold everything beyond 75 points.

Margin percentiles

p10 Vannes +12p25 Vannes +4p50 Castres Olympique +4p75 Castres Olympique +13p90 Castres Olympique +25

Eight runs in ten finished between 12 Vannes and 25 Castres Olympique, with the middle run at 4 Castres Olympique.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 29 and 70 points in eight runs out of ten — so one bar covers many scores. The middle run above is 21-17 on a tight afternoon and 32-28 on an open one.

Why Castres Olympique are favoured

Starting from an even match and adding what the model reads, in percentage points of win probability. Positive favours Castres Olympique, negative favours Vannes.

Even match50.0%
Rating gap-3.6 pp

Castres Olympique 1485, Vannes 1510 — 25 points, favouring Vannes

Venue+11.9 pp

Castres Olympique are at home

Form and context+4.1 pp

Recent results, head-to-head record and rest days, as the XGBoost heads weigh them. Deliberately capped, so it can nudge the rating but never overrule it.

Castres Olympique win62.4%

Head to head

Castres Olympique101Vannes

2 meetings, 2024 to 2025 · Castres Olympique by 6.5 on average

DateMatchCompetitionVenue
2025-04-19Castres Olympique 3213 VannesTop 14Stade Pierre Fabre
2024-10-26Vannes 3428 Castres OlympiqueTop 14Stade de la Rabine

None of this feeds the forecast: both ratings already contain these results.

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

Search

Jump to a tournament, a page, or a team