June 18, 2019

Super Rugby Predictions for the Quarter-finals

Team Ratings for the Quarter-finals

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
Crusaders 17.24 17.67 -0.40
Hurricanes 8.54 9.43 -0.90
Chiefs 5.98 8.56 -2.60
Jaguares 5.74 -0.26 6.00
Highlanders 4.76 4.01 0.80
Brumbies 2.44 0.00 2.40
Bulls 1.01 -3.79 4.80
Lions 0.40 8.28 -7.90
Sharks 0.28 0.45 -0.20
Blues -0.05 -3.42 3.40
Stormers -0.71 -0.39 -0.30
Waratahs -2.48 2.00 -4.50
Reds -5.86 -8.19 2.30
Rebels -7.82 -7.26 -0.60
Sunwolves -18.47 -16.08 -2.40

 

Performance So Far

So far there have been 119 matches played, 79 of which were correctly predicted, a success rate of 66.4%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Highlanders vs. Waratahs Jun 14 49 – 12 7.70 TRUE
2 Rebels vs. Chiefs Jun 14 8 – 59 -4.20 TRUE
3 Jaguares vs. Sunwolves Jun 14 52 – 10 26.30 TRUE
4 Hurricanes vs. Blues Jun 15 29 – 24 13.10 TRUE
5 Brumbies vs. Reds Jun 15 40 – 27 11.60 TRUE
6 Stormers vs. Sharks Jun 15 9 – 12 3.30 FALSE
7 Bulls vs. Lions Jun 15 48 – 27 1.80 TRUE

 

Predictions for the Quarter-finals

Here are the predictions for the Quarter-finals. 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 Crusaders vs. Highlanders Jun 21 Crusaders 16.00
2 Jaguares vs. Chiefs Jun 21 Jaguares 3.80
3 Hurricanes vs. Bulls Jun 22 Hurricanes 11.50
4 Brumbies vs. Sharks Jun 22 Brumbies 6.20

 

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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 »