May 22, 2018

Super 15 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
Crusaders 14.43 15.23 -0.80
Hurricanes 14.16 16.18 -2.00
Lions 8.66 13.81 -5.10
Chiefs 8.27 9.29 -1.00
Highlanders 7.32 10.29 -3.00
Sharks 1.61 1.02 0.60
Waratahs 0.80 -3.92 4.70
Jaguares -0.21 -4.64 4.40
Stormers -0.75 1.48 -2.20
Blues -1.70 -0.24 -1.50
Bulls -1.96 -4.79 2.80
Brumbies -3.57 1.75 -5.30
Reds -9.51 -9.47 -0.00
Rebels -10.43 -14.96 4.50
Sunwolves -14.52 -18.42 3.90

 

Performance So Far

So far there have been 87 matches played, 60 of which were correctly predicted, a success rate of 69%.
Here are the predictions for last week’s games.

Game Date Score Prediction Correct
1 Hurricanes vs. Reds May 18 38 – 34 30.90 TRUE
2 Sunwolves vs. Stormers May 19 26 – 23 -11.50 FALSE
3 Blues vs. Crusaders May 19 24 – 32 -13.30 TRUE
4 Waratahs vs. Highlanders May 19 41 – 12 -6.80 FALSE
5 Sharks vs. Chiefs May 19 28 – 24 -3.60 FALSE
6 Lions vs. Brumbies May 19 42 – 24 16.00 TRUE
7 Jaguares vs. Bulls May 19 54 – 24 2.40 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 Crusaders vs. Hurricanes May 25 Crusaders 3.80
2 Rebels vs. Sunwolves May 25 Rebels 8.10
3 Jaguares vs. Sharks May 25 Jaguares 2.20
4 Chiefs vs. Waratahs May 26 Chiefs 11.50
5 Reds vs. Highlanders May 26 Highlanders -12.80
6 Bulls vs. Brumbies May 26 Bulls 5.60
7 Stormers vs. Lions May 26 Lions -5.90

 

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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 »