Leinster 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.
Leinster 72.5%draw 2.5%25.0% LionsLions 43.5%draw 2.5%54.0% LeinsterLeinster 63.5%draw 2.5%34.0% LionsEach 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 Leinster wins; the faded bars at each end hold everything beyond 75 points.
Margin percentiles
Eight runs in ten finished between 4 Lions and 34 Leinster, with the middle run at 9 Leinster.
Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 30 and 71 points in eight runs out of ten — so one bar covers many scores. The middle run above is 24-15 on a tight afternoon and 34-25 on an open one.
Why Leinster are favoured
Starting from an even match and adding what the model reads, in percentage points of win probability. Positive favours Leinster, negative favours Lions.
Leinster 1912, Lions 1678 — 234 points, favouring Leinster
Leinster 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
Leinster5–0–1Lions6 meetings, 2022 to 2026 · Leinster by 11.7 on average
| Date | Match | Competition | Venue |
|---|---|---|---|
| 2026-05-30 | Leinster 59–10 Lions | United Rugby Championship | Aviva Stadium |
| 2026-05-09 | Leinster 31–7 Lions | United Rugby Championship | Aviva Stadium |
| 2024-10-26 | Leinster 24–6 Lions | United Rugby Championship | Aviva Stadium |
| 2024-04-20 | Lions 44–12 Leinster | United Rugby Championship | Ellis Park |
| 2023-04-15 | Lions 36–39 Leinster | United Rugby Championship | Ellis Park |
The 5 most recent meetings; the record above covers all 6. None of this feeds the forecast: both ratings already contain these results.