Playing today they were giving out entries for a drawing every time you got a blackjack. After my session I left with about 6 of them. That means I had 6 blackjacks, now wonder it was a winning session.

The drawing was for entry to a tournament. I have never played in a blackjack tournament before, but I know it is all about the betting. Long term strategies won't do any good. The tournament is 10 hands, whoever has the most chips after the 10 hands wins. Everyone is given 2000 in chips they can bet from 100 to 1000. What would be a good betting strategy for such a competition?