The first race is at 1pm on Friday, then 1:40, then there are two 'B' races for the other runners. Meet done by 3:40, except for awards, although they may do that during the B races.
They should have the timing mats, including at the finish. But with that many good teams in each race, it will be a very crowded finishing areas with 7 x 40 for the men and 7 x 42 for the women. And with only 6kms to separate out the women it will be crowded with almost 300 coming across the line, many within a 2-minute interval at the peak.
As for the race itself, it is a bit hard to figure out the race because of variations in how hard the teams will run. For those working for points, this may be more important than their league race and so might be a real peak effort. Others more secure in qualifying (e.g., Wisconsin, Indiana, but also those that might have an easier regional) will probably train through a little more.
Note that Wisconsin has never won this meet -- only third year, but... -- however, it is a couple weekends later this year and with Mick hitting the running with Pride theme, they will be working hard. It will be interesting to see if they are running all of the top five (would guess yes if they are all healthy but probably will not run someone if they have the wrong kind of injury issue). I would guess that Brice will go and then it is a bit of a toss up.
If Oregon runs everyone (the two Ls included) they can be pretty tough.
It has been fairly dry and the course will likely run hard and fast (although they do irrigate parts of the course, as needed) and since this is the last meet of the year for the course, they have prepped it for this race, as they are probably seeing it as a trial for the Regionals next year.
The course has a number of back and forth 'squiggles' that generally allow you to cut across and see the runs 4-5 times. However, there will probably be so many in attendance and so many running that it will be hard to do it as easily as in the past. The berms will also be packed. Current forecast is for sunny and a high of 62 with dew point in the lower forties -- way fast conditions so it should be a great set of races.