Abstract: A system featuring a server communicating with the network with game hosting software programmed on the server, a terrain database and a time sequence GPS position linked message database each stored on the server and accessed by the game hosting software is disclosed. The terrain database stores a plurality of three dimensional renderings of golf courses created from digital aerial photographs of each golf course, wherein each photo includes elevational and slope data for each aerial photo. The time sequence GPS position linked message database contains a plurality of messages collected by a portable computing device and transmitted to the server by the device during an actually played round of golf. Each message is: transmitted by the device to the server; associated with an elapsed time from the beginning of the play of the round of golf, and linked to a GPS determined position from where the message was transmitted.