The online poll shows Trump with 49.31 percent, to Clinton's 47.34 percent.
Trump has gained more than 3 percentage points and Clinton has lost more than 1 point over the course of seven days, the poll's full sample size.
The UPI/CVoter online tracking poll surveys about 200 people each day, leading to a sample size of roughly 1,400 people during any seven-day span.
Because the poll is conducted online and individuals self-select to participate, a margin of error cannot be calculated. The poll has a credibility interval of 3 percentage points. This seven-day span includes data collected from Sept. 23 to 29, when 1,804 individuals were surveyed. Of them, 1,236 identified themselves as likely voters.