NRL Predictions for Round 23
Team Ratings for Round 23
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 | |
|---|---|---|---|
| Panthers | 11.44 | 8.77 | 2.70 |
| Sharks | 11.42 | 7.25 | 4.20 |
| Roosters | 9.65 | 9.50 | 0.10 |
| Warriors | 7.85 | -1.18 | 9.00 |
| Dolphins | 3.88 | 1.85 | 2.00 |
| Sea Eagles | 0.99 | 0.21 | 0.80 |
| Knights | 0.03 | -14.06 | 14.10 |
| Rabbitohs | -0.09 | -5.05 | 5.00 |
| Bulldogs | -0.28 | 2.13 | -2.40 |
| Raiders | -0.46 | 1.62 | -2.10 |
| Storm | -0.68 | 6.96 | -7.60 |
| Cowboys | -4.72 | -2.69 | -2.00 |
| Broncos | -5.20 | 7.06 | -12.30 |
| Titans | -5.40 | -8.02 | 2.60 |
| Eels | -5.63 | -0.37 | -5.30 |
| Dragons | -10.18 | -6.72 | -3.50 |
| Wests Tigers | -12.62 | -7.26 | -5.40 |
Performance So Far
So far there have been 164 matches played, 108 of which were correctly predicted, a success rate of 65.9%.
Here are the predictions for last week’s games.
| Game | Date | Score | Prediction | Correct | |
|---|---|---|---|---|---|
| 1 | Cowboys vs. Roosters | Jul 30 | 12 – 82 | -2.50 | TRUE |
| 2 | Dragons vs. Dolphins | Jul 31 | 22 – 28 | -11.20 | TRUE |
| 3 | Storm vs. Bulldogs | Jul 31 | 22 – 36 | 6.50 | FALSE |
| 4 | Titans vs. Warriors | Aug 01 | 6 – 42 | -5.20 | TRUE |
| 5 | Panthers vs. Raiders | Aug 01 | 42 – 18 | 14.40 | TRUE |
| 6 | Broncos vs. Knights | Aug 01 | 6 – 30 | 2.30 | FALSE |
| 7 | Sharks vs. Rabbitohs | Aug 02 | 32 – 16 | 15.40 | TRUE |
| 8 | Wests Tigers vs. Eels | Aug 02 | 13 – 16 | -8.10 | TRUE |
Predictions for Round 23
Here are the predictions for Round 23. 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 | Titans vs. Cowboys | Aug 06 | Titans | 3.30 |
| 2 | Warriors vs. Panthers | Aug 07 | Warriors | 0.40 |
| 3 | Roosters vs. Bulldogs | Aug 07 | Roosters | 13.90 |
| 4 | Storm vs. Sea Eagles | Aug 08 | Sea Eagles | -1.70 |
| 5 | Dolphins vs. Broncos | Aug 08 | Dolphins | 9.10 |
| 6 | Rabbitohs vs. Eels | Aug 08 | Rabbitohs | 9.50 |
| 7 | Raiders vs. Knights | Aug 09 | Raiders | 3.50 |
| 8 | Dragons vs. Sharks | Aug 09 | Sharks | -17.60 |
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 »