OK, I can't get on the Juckins site any way...
But just working with the Amtrak site I've got these latest numbers:
6/30 Den -2.0 hr
7/1 Den -3.5
7/4 Den -3.5
7/6 Den -2.0
7/7 Den -2.5
7/8 Den -2.0
7/9 Den -3.2
The most it made up to SLC was 1 hour on 7/4
It lost an additional .5 hour...