Golf at night

My wife, brother-in-law and myself went out for a little night photography experiment a week ago, or so. It was extremely dark, apparently you need to have at least a little moon light to get shots that are not so grainy. The exposure on the picture above is in the 2 min range. We used 2 sb-28dx speedlights with wireless slaves and a mag light for lighting up the flag. It was a fun evening. I will post more images when I get the chance.