Points Breakdown: Team Success: 5 pts for National Championship. 3 pts for Podium Finish. 1 pt for Nationals Appearance. Individual Success: 0.9 pts for an Individual Champion, 0.1 for an All-American. Points totaled each Season.
3 categories Added together for All-Time Rankings: 1) D-III History, all D3 XC points since 1978. 2) Last 10 Years, intended to be a measure of current coaches (obviously some have been around way less or way longer)
3) Last 4 Seasons, intended to show recent success of anyone currently on teams.
You get lots of points for team history, but a bonus for recent success and another bonus for 'current' success...
TOTAL - History - 10 Year - 4 Year
1 North Central 179.6 128.4 37 14.2
2 Calvin 82.7 59.9 18.7 4.1
3 UW - LaCrosse 79.2 59.5 13.5 6.2
4 Haverford 72.4 47.6 20.5 4.3
5 Williams 60.6 40.2 14.9 5.5
6 UW - Oshkosh 56.1 47.2 6.8 2.1
7 St Olaf 48 19.9 16.2 11.9
8 St Thomas 43.6 39.5 3.1 1
9 SUNY Cortland 41.1 23.8 15.1 2.2
10 St Lawrence 39.3 24 11 4.3
11 SUNY Geneseo 37.4 16.4 14.8 6.2
12 NYU 35.5 17.3 16.1 2.1
13 Brandeis 35.4 32.3 3.1 0
14 Washington U 35.1 13.2 14.2 7.7
15 UW - Eau Claire 34.2 12 12.2 10
16 UW - StevensPoint 33.5 29.1 4.4 0
17 Carnegie Mellon 32.2 19.9 9.3 3
18 Rochester 31.2 28 3.2 0
19 Allegheny 31.1 14.3 13.3 3.5
20 Emory 29.9 18.7 7.2 4
21 Claremont M-S 29.8 14.8 10.5 4.5
22 Nebraska Wes. 28.7 22.5 6.2 0
23 Luther 28.2 21.3 5.7 1.2
24 St Johns 26.8 23.6 3.2 0
25 Carleton 25.9 20.5 3.2 2.2
26 Augustana 25.6 21.4 3.2 1
27 Tufts 25.3 15.3 6.7 3.3
28 Wabash 25 15.8 6.2 3
29 MIT 24.9 14.9 5.5 4.5
30 Mount Union 24.8 17.6 5.1 2.1
31 UW - Platteville 24.7 12.4 9.3 3
32 RIT 23.1 20.6 2.3 0.2
33 Pomona Pitzer 22 12.7 5.2 4.1
34 Occidental 21 15.3 4.5 1.2
35 Wartburg 19.8 13.6 4.2 2
36 Dickinson 19.4 8.6 8.5 2.3
37 Willamette 19.1 11.8 6.2 1.1
38 Middlebury 18.5 6.6 7.6 4.3
39 Keene State 18 17 1 0
40 Lynchburg 17.5 12.4 5.1 0
41 Rowan(Glassboro)16.9 16.9 0 0
42 Amherst 16.2 6.6 6.3 3.3
43 Loras 15.4 5.8 5.4 4.2
44 TCNJ 15.2 10.8 3.4 1
45 Hamline 14.5 10.1 4.4 0
46 Elizabethtown 14.2 8.7 4.4 1.1
47 Central 13.5 5.6 4.5 3.4
48 Bowdoin 13.3 8.5 4.7 0.1
49 Frostburg St. 12.6 12.6 0 0
50 Johns Hopkins 12.4 4.2 5.1 3.1
51 Colorado College 12.2 7.8 4.4 0
52 U Mass - Dart. (SE Mass) 11.7 11.7 0 0
53 UC - San Diego 11.6 11.6 0 0
54 Bates 11.5 7.1 3.3 1.1
55 Heidelberg 11.3 7.2 4.1 0
56 Wheaton 10.9 8.3 2.6 0
57 SUNY Plattsburgh 10.2 8.8 1.4 0
57 Centre 10.2 6.1 4.1 0
59 Ithaca 9.9 9.8 0.1 0
60 Manchester 9 4 4 1
61 U of Chicago 8.9 4.7 2.2 2
62 SUNY Fredonia 8.8 8.7 0.1 0
63 Trinity 8.7 5.5 3.2 0
64 SUNY Albany 8.6 8.6 0 0
65 Ohio Northern 8.5 3.3 4.2 1
66 UW - Whitewater 7.8 7.5 0.2 0.1
67 Case-Western 7.6 5.4 2.1 0.1
68 Christopher Newport 7.4 3.4 2 2
69 Wesleyan 7 3.8 2.2 1
70 Colby 6.8 2.4 2.2 2.2
70 UW - Stout 6.8 3.3 2.3 1.2
72 Otterbein 6.7 6.7 0 0
73 St. Josephs 6.2 6.2 0 0
74 Grinnell 6.1 4.1 2 0
74 Hope 6.1 6.1 0 0
76 Bridgewater, VA 6 2 2 2
76 Rhodes 6 2 3 1
76 Baldwin-Wallace 6 6 0 0
79 Anderson 5.7 4.6 1.1 0
79 Widener 5.7 2.4 2.1 1.2
81 Roanoke 5.3 5.1 0.1 0.1
81 Hamilton 5.2 2.1 2.1 1
83 Albion 5 4 1 0
84 Puget Sound 4.5 4.3 0.2 0
85 Coast Guard Academy 4.3 4.3 0 0
85 Humboldt State 4.3 4.3 0 0
87 Connecticut College 4.1 2.2 1 0.9
87 Boston State 4.1 4.1 0 0
89 Whitworth 4 2 2 0
90 Rensselaer Poly 3.9 1.3 1.3 1.3
91 Gettysburg 3.3 3.3 0 0
92 SUNY Binghamton 3.2 3.2 0
92 Puerto Rico 3.2 3.2 0 0
94 Ohio Wesleyan 3.1 2.1 1 0
94 Washington & Lee 3.1 1.1 1 1
94 Rose-Hulman 3.1 1.1 1 1
97 Bethany 3 3 0 0
98 Franklin & Marshall 2.9 2.9 0 0
99 DePauw 2.7 2.5 0.2 0
100 Muhlenberg 2.2 1 1.1 0.1
There is the Top 100. I am 100% sure that there are mistakes throughout, but the general 'idea' is accurate.