Directions to Polo Field:

From I-90, I-80, I-480, I-77, and I-71 get onto I-271.
Exit I-271 at Chargrin Blvd. (North of I-480, South of I-90)
At Chargrin Blvd., head East
At Lander Rd. (traffic circle), do not stay on Chagrin, take Rt. 87.
(This will be as if you'd gone 'straight' through the circle)
Following Rt. 87 (which becomes Pinetree Rd. then S. Woodland Rd.), you will go down a hill into the Chagrin River Valley.
At the bottom is Chagrin River Road, if there's no construction turn right.
The Polo Grounds are on your left.
Parking is at the far end of the field.

If there is construction on Chagrin River Rd, you can go straight on 87 for a short distance, then turn right into a small drive for the polo grounds. A service road will take you around the fields to the parking lot.
Layout of the Polo Fields
 

Direction to the Newbury Fields from the Polo Field:

Turn right (east) on Rt. 87, S. Woodlard Rd. Take Rt. 87 (turns into Kinsman Rd.) about 10 miles
Turn left on Auburn Rd.
There will be a school on your right - enter the last driveway for the school.
The fields and a parking lot will be behind the school.
Layout of the Newbury Fields