Its called "field turf" and they put it in a couple years ago. The green strands of "grass" appear to be growing out of this mixture of ground rubber and sand. You can dig your fingers into it about 2"s. When you run, it feels like spongy grass. The warning track is the same material only painted a burnt orange color.
There were many more than 6 people there. In fact it was a sell out, 36 plus thousand. Even though we only average 21 thousand per game, we have the highest walk up ticket sales (non season ticket holders) in MLB at over 15 k per game. The overall attendance is up over 30% from last year, and considering that we had 10 consecutive 90 loss seasons and only 6000 season ticket sold this year, I think we are doing ok. The majority of most teams ticket sales are based on Season tickets, bought by corporations and given to employees or clients, give us a few years of winning and we will get budgeted by our local business owners. Name one team not in New York or LA that can put fans in the seats without winning. For example, in 1995 the NY Yankmees did not play well, were 13th in attendance drawing a mere 5000 more for the YEAR than the Marlins.