Here are the directions to the Thamrong Ground pitch. Have a look at the attached map in GIF file format:
[File: thamrong_ground.gif]

Thamrong Ground off Ramintra Road on Khubon Road, near Minburi area.

Following are the verbal directions:
  - Take the Expressway and head towards Bangna-Trad in the direction of Pataya.
  - 2-3km before the Sukhumvit Soi 62 exit, exit Expressway (as if you'll go on the Chonburi Elevated Way), and go toward left to enter the Ramintra Expressway.
  - After passing Ladprao Road exit and Kaset-Nawamin Road exit, leave Ramintra Expressway at the Ramintra Road exit.
  - As you come down the exit ramp, stay on the right lanes which will go over a flyover, and make a clover-leaf left curve to turn and head towards Minburi (East).
  - When you're down on the Ramintra Road, travel about 3-4km until the Nawamin Road intersection (which is at the Km.8 of the Ramintra Road).
  - At the intersection, don't go over the flyover, stay on the left lanes, and turn left onto Khubon Road at the first traffic lights by the side of the rising flyover.
  - Travel on Khubon Road about 3-4km, making dogleg right turns twice (along the way, you will see Soi 29, Soi 31, Soi 33, and Khubon Temple on the left).
  - After passing Khubon Temple, go under the Eastern Outer Ring Road, and make a left turn at the T-intersection.
  - Another 100m later, make a right turn at the next T-intersection.
  - After about 300m, you will see Thamrong Ground on the right-hand-side (after Khubon Soi 36).
  - You made it!

If you see Khubon Soi 38 or Soi 40 on the right-hand-side, you've gone too far. Turn back around!

For those who are map savvy, the following is a direct link on Google Maps:
 ==> http://maps.google.com/?ie=UTF8&ll=13.855476,100.679376&spn=0.010062,0.01929&z=16

It will take 45-60min to get there from the Sathorn/Silom area, depending on traffic and road conditions.