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Supercross "This Week" Predictions -- Toronto 2017

The MX Book Preview: The MX Book eBook: The MX Book

In Atlanta, Ryan Dungey wasn't exactly back on track, but he did win the race and the points.  While the updated full-season prediction still sees Dungey as a heavy favorite to win the championship, each week Eli Tomac and Marvin Musquin have a chance to chip away at his lead.  Who's got the talent and primed to win at Supercross week 9 in Toronto?

As usual, the updated 2017 Supercross Prediction puts the whole season in perspective, while the "This Week" rankings look at the riders' perceived ability (aka "true talent") as well as taking into account injuries and the riders' history at the upcoming track.

**For those not familiar, a brief explanation of the components that factor into the "This Week" rankings:
True Talent
The standard MotoXGraphs prediction of rider performance, based on the current and prior seasons, weighing recent results more heavily.  It differs from the "Full Season" prediction in that it is not worrying about the rider's current point standings (which obviously are a crucial part of the full season prediction), only about their current ability.

Injury Adjustment
Attempts to account for riders competing at less than 100% due to injury.  Full research behind the Injury Adjustment can be found in The MX Book (or eBook).  While this adjustment is only an estimate (what predictions aren't?), the purpose of the Injury Adjustment is less about trying to make an exact prediction and is more about indicating that a rider is recovering from injury so the viewer can take that into account at whatever scale he or she chooses.

Track Adjustment
Provides an increase or decrease in expected points for the riders based on their historical performance (over the past 4 years, where applicable) in the upcoming city/stadium.  Also validated by research in The MX Book ( or eBook).  The track/location effect has a slightly muted nature in Supercross compared to outdoors since the tracks are not exactly the same in Supercross sites from year to year (or even within the same year for sites like Angel Stadium or Petco where there are often multiple races in one season).

Here are the predictions for the 450 class this weekend.

Top of the list looks pretty normal.  Davi Millsaps gets a small penalty for being in recovery-from-injury mode, but it costs him several spots as riders are grouped pretty tightly in that part of the ratings.  

On the flip side, Millsaps gets a benefit from the Track Adjustment: he finished 2nd last time he was in Toronto at the Rogers Centre -- albeit in 2013 -- and the year prior he was 4th.  Take that with a grain of salt, of course, since these results were 4+ years ago.  Chad Reed, on the other hand, finished 22nd in 2016 but 4th in 2013 -- his last 2 trips to the Rogers Centre.  A corresponding minor adjustment downward costs him multiple spots, again because the grouping is so tight for the back half of the Top 10 and the early teens.

Posted by: SagehenMacGyver47   :::   As always – Feedback welcomed

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