Match predictor

Brumbies vs Stormers

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
Brumbies at home27-24 average
Brumbies 48.5%draw 2.5%49.0% Stormers
Stormers at home32-19 average
Stormers 77.6%draw 2.5%19.9% Brumbies
Neutral ground23-28 average
Brumbies 34.6%draw 2.5%62.9% Stormers

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

Margin percentiles

p10 Stormers +22p25 Stormers +10p50 Stormers +1p75 Brumbies +6p90 Brumbies +15

Eight runs in ten finished between 22 Stormers and 15 Brumbies, with the middle run at 1 Stormers.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 32 and 73 points in eight runs out of ten — so one bar covers many scores. The middle run above is 21-20 on a tight afternoon and 32-31 on an open one.

Why Brumbies are not favoured

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

Even match50.0%
Rating gap-20.5 pp

Brumbies 1498, Stormers 1716 — 217 points, favouring Stormers

Venue+11.2 pp

Brumbies are at home

Form and context+7.8 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.

Brumbies win48.5%

Head to head

Brumbies202Stormers

4 meetings, 2015 to 2019 · Brumbies by 0.2 on average

DateMatchCompetitionVenue
2019-04-20Stormers 1719 BrumbiesSuper RugbyDHL Newlands
2016-03-19Stormers 3111 BrumbiesSuper RugbyDHL Newlands
2015-06-20Stormers 1939 BrumbiesSuper RugbyDHL Newlands
2015-05-09Stormers 2524 BrumbiesSuper RugbyDHL Newlands

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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