Match predictor

Northampton Saints vs Ospreys

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
Northampton Saints at home35-17 average
Northampton Saints 80.1%draw 2.5%17.4% Ospreys
Ospreys at home26-27 average
Ospreys 30.1%draw 2.5%67.4% Northampton Saints
Neutral ground30-22 average
Northampton Saints 74.8%draw 2.5%22.7% Ospreys

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 Northampton Saints wins; the faded bars at each end hold everything beyond 75 points.

Margin percentiles

p10 Ospreys +1p25 Northampton Saints +2p50 Northampton Saints +11p75 Northampton Saints +23p90 Northampton Saints +37

Eight runs in ten finished between 1 Ospreys and 37 Northampton Saints, with the middle run at 11 Northampton Saints.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 32 and 75 points in eight runs out of ten — so one bar covers many scores. The middle run above is 26-15 on a tight afternoon and 37-26 on an open one.

Why Northampton Saints are favoured

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

Even match50.0%
Rating gap+32.6 pp

Northampton Saints 1918, Ospreys 1470 — 448 points, favouring Northampton Saints

Venue+5.3 pp

Northampton Saints 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.

Northampton Saints win80.1%

Head to head

Northampton Saints102Ospreys

3 meetings, 2015 to 2017 · Ospreys by 5.7 on average

DateMatchCompetitionVenue
2017-12-17Ospreys 3215 Northampton SaintsEuropean Champions CupSwansea.com Stadium
2017-12-09Northampton Saints 3243 OspreysEuropean Champions Cupcinch Stadium at Franklin's Gardens
2015-01-18Ospreys 920 Northampton SaintsEuropean Champions CupSwansea.com 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.

Search

Jump to a tournament, a page, or a team