PRIVACY POLICY · EFFECTIVE OCT 21, 2026
Privacy policy
The short version: we collect your email and your picks to run the contest; the sponsor gets your email because you agreed to that when you entered; and we rent or sell your email address to other companies for their own marketing, which you can switch off at any time. The long version is below.
1. What we collect
When you enter: your email address (required), a display name (optional; we generate one if you skip it), your entry (your picks or answers and any tiebreaker), and the time you locked. We also record whether your email address has been confirmed and how: a sign-in code, a click in one of our emails, or a later entry. Automatically: your IP address, device and browser type, the pages you view on mainmarket, and the referral link that brought you, if any. If you opt in to texts: your phone number, which of our numbers texted you, and the time and wording of the consent you gave. We do not collect payment details from players; winners give payment information directly to our payments provider.
2. How we use it
To run each contest: sign you in, save your entry, score it, rank you, and pay you if you win. To confirm your email address is real before we pay a prize. To email you the four contest emails: your sign-in code, your locked confirmation, kickoff, and results. To make your email address available to other companies for their own marketing, as "Who else sees it" describes. To verify winners and meet tax rules. To keep the site working and fair, including spotting duplicate accounts and bots. To understand how the site is used, with our own first-party analytics and Google Analytics. To look up public business information about you, such as where you work and your job title, through a business data provider, so we can find companies that might sponsor a contest.
3. The sponsor
Some contests are presented by a sponsor, and it says so on the contest. When you enter a sponsored contest, you agree, in the sentence next to the entry button, to receive marketing email from that sponsor. After the contest we give that sponsor your email address, your display name, and the time and wording of your consent. That's all. The sponsor never receives your picks, your IP address, or anything else, and only the sponsor of a contest you entered gets your email. You can unsubscribe from the sponsor's emails using the link in any of them, and unsubscribing never affects your entry.
4.
Highlights is a mainmarket brand. When you enter a contest we add your email address and display name to Highlights, along with the time and wording of the consent you gave, so it can email you under that consent. If you enter through a link from Highlights, we also tell Highlights that you entered. Highlights never receives your picks, your phone number, your IP address, or anything else. You can unsubscribe from Highlights' emails using the link in any of them, and unsubscribing never affects your entry.
5. Who else sees it
The companies that run our infrastructure on our behalf and under contract: hosting and database, email delivery, address validation, results data, and payments to winners. They process your data only to provide those services to us. We'll share data if the law requires it, to protect players or the service from fraud or abuse, or as part of a sale or merger of mainmarket, in which case this policy still applies.
We also rent and sell email addresses. We may disclose your email address, and the fact that you play contests on mainmarket, to other companies for their own marketing in exchange for money or other value, through co-registration, list rental, list management and similar arrangements. Entering a contest is your agreement to this policy: the line next to the entry button says so and links you here. It covers every entry, including entries you made before this policy took effect. Under California and several other state privacy laws this is a "sale" and a "share" of personal information, and you can opt out at any time: turn off "Share my email with marketing partners" in your profile, or email hey@mainmarket.com. We stop within 30 days and keep you off these lists after that. Opting out never affects your entry, your standing, or a prize you have won. We don't rent or sell the address of anyone we know to be under 18, and we never sell your picks, your IP address or your payment details.
6. Emails and texts
Contest emails from mainmarket (code, confirmation, kickoff, results) are part of playing; you can't opt out of them while you're entered. If you opt in, we also email you when a new contest opens; unsubscribe from those any time. If a friend invites you, you get one email with their invite and a link to never get invites again, and the link in that email signs you in without a code: it works once, it stops working when picks lock, and you shouldn't forward it, because anyone with the link can make picks as you. When a player invites you, we create a mainmarket account for your address and add you to Highlights, a mainmarket brand, so we can send you their invite and Highlights' emails; unsubscribe from either using the link in any of them, or ask us to delete the account. The friend who invited you can see your email address in their list of pending invites until you join or the invite expires. Sponsor emails are marketing and have an unsubscribe link. Companies we rent or sell your address to email you themselves, under their own privacy policies; our unsubscribe links don't cover them, and unsubscribing from our emails doesn't take you off their lists, so to stop it at the source opt out of the sale as "Who else sees it" describes. We send text messages only if you ask for them by texting us at the number on a contest page. Those texts come from mainmarket, never from a sponsor: a confirmation when your phone is linked, one text after each slate of games on game day with how your picks did and your rank, and one when a new contest opens, about five a week in season. Reply STOP to any text to stop them, HELP for help, and SCORE for your score and rank. We never sell or rent your phone number. If you join a group, members of that group see your display name and your standings on the group board, and the results email sent to members carries the group's top four and the member's own row. A public group's name, board and membership are visible to anyone.
7. What's public
Your display name, your rank, your score, any tiebreaker answer and the time you locked appear on leaderboards. If you share your entry, the share page and image show your display name and your entry to anyone with the link. Your email address is never shown publicly; the members of a private group you belong to can see it.
9. Your choices and rights
You can change your display name from your profile any time, and turn off "Share my email with marketing partners" there too. Reply STOP to any text to stop texts; we keep your number on a do-not-text list so the stop holds. Email hey@mainmarket.com to see the data we hold about you, correct it, or delete your account; we'll act within 30 days and confirm by email. Deleting your account removes you from future contests and leaderboards; we keep records of prizes we've paid you for as long as tax law requires. If you live in California or another state with a privacy law, you have the rights that law gives you, including to know, delete, correct, opt out, and not be discriminated against for using them. We do rent and sell email addresses as those laws define it, and you can opt out at any time; see "Who else sees it". We don't knowingly sell the information of anyone under 16.
10. How long we keep it
Entries: for the season they belong to, plus one year, so results and disputes can be checked. Consent records: for as long as a sponsor or mainmarket may lawfully email you, plus the time we need to prove consent. Ad view and click records: 90 days raw, then daily totals only. Payment and tax records: seven years. Analytics: 13 months for our own; up to 14 months in Google Analytics. An invited friend's address on the invite itself: until that friend joins, or one week after the contest they were invited to locks; the account created for them is kept like any other account. Phone numbers and text consent: until you reply STOP or delete your account, and after a STOP the number alone, so we never text it again. The texts we sent you: as long as the entry they were about. Deleted accounts: removed within 30 days except for the records above.
11. Under 18
mainmarket is for adults. We don't knowingly collect information from anyone under 18; if we learn we have, we delete it. If you think a minor has entered, email hey@mainmarket.com.
12. Security
Data is encrypted in transit and at rest, access is limited to the people who need it, and there are no passwords to leak because we don't use them. No system is perfect; if we ever have a breach that affects you, we'll tell you promptly and plainly.
13. Changes and contact
If we change this policy in a way that matters, we'll email you before it takes effect and update the date at the top. Questions or requests: hey@mainmarket.com. Axe LLC, 6051 Brookstone Lane, Grand Blanc, MI.