Match predictor

New South Wales Waratahs 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
New South Wales Waratahs at home26-27 average
New South Wales Waratahs 32.8%draw 2.5%64.7% Stormers
Stormers at home33-20 average
Stormers 78.8%draw 2.5%18.7% New South Wales Waratahs
Neutral ground23-30 average
New South Wales Waratahs 24.6%draw 2.5%72.9% 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 New South Wales Waratahs wins; the faded bars at each end hold everything beyond 75 points.

Margin percentiles

p10 Stormers +16p25 Stormers +9p50 Stormers +3p75 New South Wales Waratahs +3p90 New South Wales Waratahs +10

Eight runs in ten finished between 16 Stormers and 10 New South Wales Waratahs, with the middle run at 3 Stormers.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 33 and 75 points in eight runs out of ten — so one bar covers many scores. The middle run above is 22-19 on a tight afternoon and 33-30 on an open one.

Why New South Wales Waratahs are not favoured

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

Even match50.0%
Rating gap-33.2 pp

New South Wales Waratahs 1311, Stormers 1716 — 405 points, favouring Stormers

Venue+8.2 pp

New South Wales Waratahs 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.

New South Wales Waratahs win32.8%

Head to head

New South Wales Waratahs101Stormers

2 meetings, 2015 to 2018 · Stormers by 3.5 on average

DateMatchCompetitionVenue
2018-02-24New South Wales Waratahs 3427 StormersSuper RugbyAllianz Stadium
2015-04-11New South Wales Waratahs 1832 StormersSuper RugbyAllianz Stadium

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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