This year 's WTA Finals features a record US $7 million ( S $9.7 million ) purse .
This year 's WTA Finals includes an expanded format featuring eight days of competition taking place from Oct 23 to Nov 1 .
This year 's WTA Finals features a record US $7 million ( S $9.7 million ) purse and includes an expanded format featuring eight days of competition taking place from Oct 23 to Nov 1 .