Using Google to do the routing and math:
Kennewcik to Deadhorse = 57 hours 2793 miles
Deadhorse toGreenville, SC = 82 horse 4656 miles
Totals =139 hours 7449 miles
Hours available from 4AM PDT Friday 6/21 to 10 AM EDT Friday 6/28 = 171 hours (with 3 hours deducted for time change)
Rider has to average 53.6 mph for the 139 hours, which leaves them 32 hours over 7 days for everything else.
Doubt if Google Maps takes into account the condition of the Haul road. That could be a real time sucker if it is wet or in bad condition. then border crossings (4 times) summer traffic in BC can be brutal with all the motor homes. Fortunately south of Fairbanks it is fairly easy to maintain a good pace as the roads are not too curvy and sight distance is usually pretty good. Not to mention the scenery is unbelievable. And usually the graveled sections of road maintenance is well maintained and can usually keep your speeds similar to paved areas without being too risky. Just gonna be dusty if you catch traffic wrong.
The ones that have a car tire on the rear will be really happy with their choice, as risk of flats will be less on the haul road than for motorcycle street tires.
Panman and EscapeFJRist (riding Super Tenres) turned around at the last mountain pass before Prudhoe Bay due to weather about two weeks ago. Hopefully it has warmed up a bit more since.
The ride is doable, but extreme is an under statement.
Need to revise: Since the lead rider went to Valdez. Got to think there are more stops in AK to hit. or more on the way to Greenville.
The lead rider (first to AK) go to Valdez (and Hyder). Udjeni reported that the first rider also went to Hyder
Assume they are just an in an out:
Kennewick to Valdez = 44 hours 2350 miles
Valdez toGreenville, SC = 70 horse 4213 miles
Totals =114 hours 6563 miles
Leaves additional 25 hours and 886 miles by not going to Deadhorse.
A few options come to mind:
Valdez to Seward is 7.25 hours and 424 miles
Homer is 9.25 hours and 519 miles
Denali Visitors Center is 7.1 hours and 350 miles
Both first and second rider furthest into AK stopped in Hyder on the way up:
Assuming no longer on an in an out:
Kennewick to Hyder = 21 hours 1142 miles
Hyder to Valdez (assuming they are headed there to) = 26 hours 1290 miles
Valdez to Greenville, SC = 70 horse 4213 miles
Totals =117 hours 6645 miles
Leaves additional 22 hours and 1104 miles by not going to Deadhorse.
A few options come to mind:
Valdez to Seward is 7.25 hours and 424 miles
Seward to Homer spit is 3.5 hours and 172 miles
Homer Spit to Denali Visitors Center is 8.1 hours and 461 miles
Total 18.85 hours and 1057 miles
Will be interesting to see if they hunt more in AK, or on the way to Greenville. Or they could link a few up and still be within the 139 hour original window of the assumed Deadhorse ride.
Having been over those roads in Alaska twice in the last 4 years, they are all good, lightly traveled, and the scenery is spectacular. Not to mention that daylight is not an issue this time of year up there.
EDIT: other possibilities:
With that in mind, from Valdez they link together Seward, Homer, Denali and then to Greenville, SC is 90 hours and 5334 miles total. As of 10AM PDT, they have 117 hours to be in Greenville, SC by 10AM EDT. Still very possible. And depending on the rider, maybe some other bonii along the way. The lead rider has a distinct advantage over the others on this possibility since they are already in Valdez. and have been doing a rest bonus.