Match predictor

Brumbies vs Lions

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 home27-23 average
Brumbies 48.7%draw 2.5%48.8% Lions
Lions at home31-19 average
Lions 75.3%draw 2.5%22.2% Brumbies
Neutral ground23-27 average
Brumbies 35.2%draw 2.5%62.3% Lions

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 Lions +23p25 Lions +10p50 levelp75 Brumbies +6p90 Brumbies +13

Eight runs in ten finished between 23 Lions and 13 Brumbies, with the middle run at level.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 31 and 71 points in eight runs out of ten — so one bar covers many scores. The middle run above is 19-19 on a tight afternoon and 30-30 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 Lions.

Even match50.0%
Rating gap-17.7 pp

Brumbies 1498, Lions 1678 — 180 points, favouring Lions

Venue+11.7 pp

Brumbies are at home

Form and context+4.7 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 win48.7%

Head to head

Brumbies202Lions

4 meetings, 2015 to 2019 · Lions by 1.0 on average

DateMatchCompetitionVenue
2019-04-13Brumbies 3120 LionsSuper RugbyGIO Stadium
2018-05-19Lions 4224 BrumbiesSuper RugbyEllis Park
2017-05-12Brumbies 613 LionsSuper RugbyGIO Stadium
2015-05-16Lions 2030 BrumbiesSuper RugbyEllis Park

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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