Harlequins 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.
Harlequins 64.1%draw 2.5%33.4% StormersStormers 65.7%draw 2.5%31.8% HarlequinsHarlequins 48.2%draw 2.5%49.3% StormersEach 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 Harlequins wins; the faded bars at each end hold everything beyond 75 points.
Margin percentiles
Eight runs in ten finished between 13 Stormers and 24 Harlequins, with the middle run at 4 Harlequins.
Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 30 and 69 points in eight runs out of ten — so one bar covers many scores. The middle run above is 21-17 on a tight afternoon and 32-28 on an open one.
Why Harlequins are favoured
Starting from an even match and adding what the model reads, in percentage points of win probability. Positive favours Harlequins, negative favours Stormers.
Harlequins 1668, Stormers 1716 — 48 points, favouring Stormers
Harlequins are at home
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.
Head to head
Harlequins2–0–1Stormers3 meetings, 2023 to 2026 · Harlequins by 28.0 on average
| Date | Match | Competition | Venue |
|---|---|---|---|
| 2026-01-11 | Harlequins 61–10 Stormers | European Champions Cup | Twickenham Stoop |
| 2024-12-14 | Harlequins 53–16 Stormers | European Champions Cup | Twickenham Stoop |
| 2023-04-01 | Stormers 32–28 Harlequins | European Champions Cup | DHL Stadium |
None of this feeds the forecast: both ratings already contain these results.