October 14, 2025

Rugby Premiership Predictions for Round 4

Team Ratings for Round 4

The basic method is described on my Department home page.
Here are the team ratings prior to this week’s games, along with the ratings at the start of the season.

Current Rating Rating at Season Start Difference
Bath 11.71 10.30 1.40
Sale Sharks 8.58 6.70 1.90
Saracens 6.63 5.03 1.60
Leicester Tigers 3.60 5.55 -2.00
Bristol 2.08 3.66 -1.60
Gloucester 1.87 4.13 -2.30
Northampton Saints -0.73 -1.47 0.70
Harlequins -2.48 -3.02 0.50
Exeter Chiefs -2.94 -4.58 1.60
Newcastle Falcons -20.48 -18.45 -2.00

 

Performance So Far

So far there have been 15 matches played, 12 of which were correctly predicted, a success rate of 80%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Sale Sharks vs. Newcastle Falcons Oct 11 57 – 5 33.30 TRUE
2 Bristol vs. Exeter Chiefs Oct 12 18 – 14 13.50 TRUE
3 Northampton Saints vs. Leicester Tigers Oct 12 32 – 26 1.80 TRUE
4 Bath vs. Gloucester Oct 12 38 – 17 15.80 TRUE
5 Harlequins vs. Saracens Oct 13 20 – 14 -3.70 FALSE

 

Predictions for Round 4

Here are the predictions for Round 4. The prediction is my estimated expected points difference with a positive margin being a win to the home team, and a negative margin a win to the away team.

Game Date Winner Prediction
1 Gloucester vs. Bristol Oct 18 Gloucester 6.80
2 Newcastle Falcons vs. Northampton Saints Oct 18 Northampton Saints -12.70
3 Leicester Tigers vs. Bath Oct 19 Bath -1.10
4 Saracens vs. Sale Sharks Oct 19 Saracens 5.00
5 Exeter Chiefs vs. Harlequins Oct 20 Exeter Chiefs 6.50

 

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David Scott obtained a BA and PhD from the Australian National University and then commenced his university teaching career at La Trobe University in 1972. He has taught at La Trobe University, the University of Sheffield, Bond University and Colorado State University, joining the University of Auckland, based at Tamaki Campus, in mid-1995. He has been Head of Department at La Trobe University, Acting Dean and Associate Dean (Academic) at Bond University, and Associate Director of the Centre for Quality Management and Data Analysis at Bond University with responsibility for Short Courses. He was Head of the Department of Statistics in 2000, and is a past President of the New Zealand Statistical Assocation. See all posts by David Scott »