February 2, 2022

Rugby Premiership Predictions for Round 15

Team Ratings for Round 15

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
Exeter Chiefs 4.27 7.35 -3.10
Saracens 3.60 -5.00 8.60
Wasps 1.80 5.66 -3.90
Leicester Tigers 1.69 -6.14 7.80
Sale Sharks 1.66 4.96 -3.30
Gloucester 1.28 -1.02 2.30
Harlequins 1.26 -1.08 2.30
Northampton Saints 0.62 -2.48 3.10
Bristol -1.85 1.28 -3.10
London Irish -3.56 -8.05 4.50
Bath -4.99 2.14 -7.10
Newcastle Falcons -7.24 -3.52 -3.70
Worcester Warriors -10.15 -5.71 -4.40

 

Performance So Far

So far there have been 82 matches played, 42 of which were correctly predicted, a success rate of 51.2%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Bath vs. Harlequins Jan 29 21 – 17 -2.50 FALSE
2 London Irish vs. Exeter Chiefs Jan 30 18 – 14 -4.30 FALSE
3 Newcastle Falcons vs. Gloucester Jan 30 22 – 32 -3.20 TRUE
4 Worcester Warriors vs. Northampton Saints Jan 30 13 – 29 -5.10 TRUE
5 Sale Sharks vs. Leicester Tigers Jan 31 35 – 26 3.80 TRUE
6 Wasps vs. Saracens Jan 31 26 – 20 2.10 TRUE

 

Predictions for Round 15

Here are the predictions for Round 15. 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 Bristol vs. Newcastle Falcons Feb 06 Bristol 9.90
2 Exeter Chiefs vs. Wasps Feb 06 Exeter Chiefs 7.00
3 Gloucester vs. London Irish Feb 06 Gloucester 9.30
4 Harlequins vs. Sale Sharks Feb 06 Harlequins 4.10
5 Leicester Tigers vs. Worcester Warriors Feb 06 Leicester Tigers 16.30
6 Saracens vs. Bath Feb 06 Saracens 13.10

 

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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 »