Match predictor

Bayonne vs Bulls

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
Bayonne at home24-27 average
Bayonne 33.6%draw 2.5%63.9% Bulls
Bulls at home32-19 average
Bulls 82.7%draw 2.5%14.8% Bayonne
Neutral ground22-29 average
Bayonne 23.8%draw 2.5%73.7% Bulls

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 Bayonne wins; the faded bars at each end hold everything beyond 75 points.

Margin percentiles

p10 Bulls +19p25 Bulls +10p50 Bulls +3p75 Bayonne +4p90 Bayonne +13

Eight runs in ten finished between 19 Bulls and 13 Bayonne, with the middle run at 3 Bulls.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 31 and 74 points in eight runs out of ten — so one bar covers many scores. The middle run above is 21-18 on a tight afternoon and 32-29 on an open one.

Why Bayonne are not favoured

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

Even match50.0%
Rating gap-30.6 pp

Bayonne 1413, Bulls 1769 — 355 points, favouring Bulls

Venue+9.2 pp

Bayonne are at home

Form and context+5.0 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.

Bayonne win33.6%

Head to head

Bayonne001Bulls

1 meeting, 2025 to 2025 · Bulls by 10.0 on average

DateMatchCompetitionVenue
2025-04-05Bayonne 2232 BullsEuropean Challenge CupStade Jean Dauger

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.

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