http://streak.espn.go.com/en/

Description:
Guess the outcome of various sporting events and you could win up to $50,000 and other cash prizes every month in ESPN's 2013 Streak for the Cash Challenge.

Eligibility:
Residents of the US, Mexico, United Kingdom, and Canada (void in Quebec), 18+

Start Date:
January 01, 2013

End Date:
December 31, 2013 at 11:59 p.m. ET

Entry Frequency:
1 x daily per person/email.

Sweepstakes Prizes:
Longest Streak Prizes (up to 12 - 1 per month): $50,000 cash. (ARV: $50,000)

Bonus Stash Prize (if the longest streak is longer than 27): Up to $600,000 cash. (ARV: $600,000)

Most Wins Prizes (12 - 1 per month): $2,500 cash. (ARV: $2,500)

Beat the Messenger Prizes (12 - 1 per month): $1,000 cash. (ARV: $1,000)

Additional Comments:
You must be a member of ESPN.com or one of their affiliated sites to enter. Membership is free and available online.

To enter, guess the outcomes of various sporting events. For example, you may guess that a certain number of goals will be scored during a soccer game, or that one team or another will win a hockey match, or that one basketball player may score more points than another.

The person who has the longest winning streak will win the grand prize each month.

If the grand-prize streak is more than 27 wins long, he or she will also receive the Bonus Stash Prize. If not, the Bonus Stash Prize will roll over to the next month. It starts and $50,000 and gains $50,000 for each month it's not claimed.

The person who selects the most wins each month, even if they're not in a row, will receive the "Most Wins" prize.

Each month, people who have accumulated more wins than "The Messenger" will be notified. At the end of the year, one winner for each month will be chosen.