DraftKings

4.9/5
Bet $5, Get $200 in Bonus Bets
Instantly + 20% deposit match up to $1,000 secondary · valid through July 1, 2026
Promo code: No code required; use links
How to claim →

FanDuel

4.8/5
Bet $5, Get $200 in Bonus Bets
(Up to $1,000 Bonus Bets)
Promo code: No code required; use links
How to claim →

BetMGM

4.7/5
Up to $1,500 First Bet Refund
Stake refunded as bonus bets if first bet loses · CO retains $1,500 legacy tier (PA/NJ pivoted to $150-win in May 2026) · valid through July 31, 2026
Promo code: BETINCO
How to claim →

bet365

4.7/5
Bet $5, Get $150 in Bonus Bets
If first bet wins · CO-tailored offer (five $30 bonus bets) · valid through June 30, 2026
Promo code: No code required; use links
How to claim →
10× 100% Profit Boost Tokens
$1 qualifying bet · $25 max stake each · valid through Aug 18, 2026
Promo code: BETINCOFULL
How to claim →

Circa Sports

4.6/5
Sharp-focused pricing
No welcome bonus
Promo code: N/A
How to claim →
Get up to $1,000 in FanCash Matched Bets
100% bet match up to $100 in FanCash for 10 days
Promo code: No code required; use links
How to claim →

BetRivers

4.5/5
2nd Chance Bet up to $500
Bonus bet refund if first bet loses · BetRivers signature CO offer · valid through July 15, 2026
Promo code: INCOBET
How to claim →
Bet $50, Get $250 in Bonus Bets
If first bet wins · Unity by Hard Rock loyalty · valid through July 15, 2026
Promo code: No code required; use links
How to claim →

theScore Bet

4.4/5
Bet $10, Get $100 in Bonus Bets
If first bet wins · rebranded from ESPN BET Dec 2025 · Ameristar Black Hawk retail partner · valid through July 31, 2026
Promo code: No code required; use links
How to claim →

Sporttrade

4.4/5
Exchange-Style Pricing
Trade positions in-play
Promo code: N/A
How to claim →

Bally Bet

4.3/5
Up to $250 First Bet Refund
Refund as bonus bets if first bet loses · Bally Rewards loyalty · valid through July 31, 2026
Promo code: BETINCO
How to claim →

BetMonarch

4.2/5
Welcome Offer
Varies by promo
Promo code: No code required; use links
How to claim →

How to use a Colorado sportsbook promo code

  1. Click through to the operator using a Colorado-eligible link.
  2. Begin registration with your real name, address, last four digits of SSN and date of birth.
  3. Enter the promo code in the box during signup or at first deposit. Some operators auto-apply the offer when you arrive via partner links; these are marked "no code required" above.
  4. Make a qualifying deposit if required (most accept $5–$10 minimums).
  5. Place the qualifying wager. Bonus credits typically post within minutes for qualifying-bet structures, or only on a losing first wager for safety-net structures.

Promo-code disclaimers

  • You must be 21+ and physically located in Colorado at the time of registration and at the time of every wager.
  • One welcome offer per person, per household, per IP address.
  • Welcome offers and promo codes change frequently. We update this page monthly; but always verify the current offer at the operator before signing up.
  • Bonus bets cannot be withdrawn directly. Only the winnings of a bonus-bet wager hit your withdrawable balance.
  • Bonus bets typically expire 7 days after issuance.
Must be 21+ and physically located in Colorado. Gambling problem? Call 1-800-GAMBLER or the Colorado Crisis Services line at 1-800-522-4700.