Match predictor

Munster 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
Munster at home27-22 average
Munster 57.2%draw 2.5%40.3% Stormers
Stormers at home29-20 average
Stormers 62.2%draw 2.5%35.3% Munster
Neutral ground24-25 average
Munster 46.2%draw 2.5%51.3% 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 Munster wins; the faded bars at each end hold everything beyond 75 points.

Margin percentiles

p10 Stormers +13p25 Stormers +5p50 Munster +2p75 Munster +13p90 Munster +23

Eight runs in ten finished between 13 Stormers and 23 Munster, with the middle run at 2 Munster.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 30 and 70 points in eight runs out of ten — so one bar covers many scores. The middle run above is 20-18 on a tight afternoon and 31-29 on an open one.

Why Munster are favoured

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

Even match50.0%
Rating gap-5.6 pp

Munster 1670, Stormers 1716 — 45 points, favouring Stormers

Venue+12.4 pp

Munster are at home

Form and context+0.4 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.

Munster win57.2%

Head to head

Munster402Stormers

6 meetings, 2021 to 2025 · Munster by 1.5 on average

DateMatchCompetitionVenue
2025-11-29Munster 2127 StormersUnited Rugby ChampionshipThomond Park
2024-10-19Stormers 3419 MunsterUnited Rugby ChampionshipDHL Stadium
2023-11-18Munster 103 StormersUnited Rugby ChampionshipThomond Park
2023-05-27Stormers 1419 MunsterUnited Rugby ChampionshipDHL Stadium
2023-04-15Stormers 2426 MunsterUnited Rugby ChampionshipDHL Stadium

The 5 most recent meetings; the record above covers all 6. 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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