Home / Compare / Underdog vs Chalkboard

Underdog vs Chalkboard

"extracting short term value from predatory betting companies in a way that is unique in the space that doesn't exist yet."

If you deposit $10: Underdog returns an estimated $89.77 in true value from $105 in bonus; Chalkboard returns an estimated $13.5 from $15 in bonus. At $50: Underdog $106.88, Chalkboard $31.5. Estimates use the site model (playthrough at a 10% hold, expiry haircut) — the method is stated on the maximizer page.

refreshed 2026-10-25 03:02 UTCfree-first ranking
UnderdogChalkboard
Signup offerPlay $5 Get $100 / 50% match to $100050% deposit match up to $500 + free pick on first lineup
Est. cash value$60–$100$50–$180
Referral economics$10 per referred friendReferral exists — amount check in-app
Minimum deposit$10$10
Playthrough1x1x
Payout speed1-3 business daysHourly review; ~12h PayPal
CaliforniaYESYES
App rating4.854.72

Welcome offer at $10 and $50

DepositUnderdogChalkboard
$10 deposit$105 bonus → est. $89.77$15 bonus → est. $13.5
$50 deposit$125 bonus → est. $106.88$35 bonus → est. $31.5

Their record, side by side

Underdog

Sign up
code: ZIZZLE420
Disclosure: this is the founder's referral link — he earns a bonus when you sign up with it.

Chalkboard

Sign up
Public offer — no referral attached. Terms verified 2026-10-17.

Questions

Which is better, Underdog or Chalkboard?

On welcome-offer math at a $10 deposit, Underdog is ahead ($89.77 estimated true value vs $13.5). The full side-by-side is in the table on this page; the offers differ in playthrough and expiry, not just size.

Can I claim both Underdog and Chalkboard?

Yes. Signup bonuses are one per platform, and claiming both is the normal pattern. Never open a second account on either platform to re-claim. The ladder page sequences claims across all platforms.

What is the minimum deposit for Underdog and Chalkboard?

Underdog: $10. Chalkboard: $10. Figures are from the terms checked on 2026-10-05 and 2026-10-17.


Related