Below are the course conversions used to equate performances across different courses in Connecticut, including conversions from the track to the trails.  Wickham Park is used as the standard and the number next to each course is what you have to multiply it by the get to Wickham.  

Wickham-1.000

3200m on the track-1.737

1600m on the track-3.815

Waveny Park(New Canaan)-1.034

Bethel-0.994

Hammonasset-1.034

Indian River-1.000

Windsor Locks-1.040

Black Rock State Park-1.000

Norwich Golf Course-0.995

Waveny Park(4 km course)-1.317

Veterans Park(Watertown)-1.030

Windham-1.034

Stratton Brook-1.000

Wilton(boys)-1.044

Wilton(girls)-1.324

Staples(girls)-1.161

Danbury-1.25

Trumbull-1.1

Ridgefield 4k-1.305

Ocean State- 1.029

Bowdoin Park-0.99

Winding Trails Center-1.069

Chenango Valley-1.019

Nonnewaug HS-1.05

Rockville HS- 1.07

Thetford Woods Run-0.972

Great American XC Festival- 1.035