If you're planning to bet on one of tennis's biggest tournaments, the Cosmobet National Bank Open Promotion gives you an extra reason to get involved. Instead of walking away empty-handed if your prediction misses, eligible players can receive 50% of their losing stake back as up to 300 Free Spins.
Whether you're backing an ATP favourite or predicting an upset in the WTA draw, this limited-time promotion provides a second chance to keep the excitement going.
What Is the Cosmobet National Bank Open Promotion?
The National Bank Open is one of the premier events on the professional tennis calendar, featuring many of the world's top-ranked ATP and WTA players.
To celebrate the tournament, Cosmobet is offering an insurance-style promotion.
Simply place a qualifying tennis bet during the promotional period. If your qualifying wager loses, you'll receive 50% of your stake back in Free Spins, with rewards capped at 300 spins.
Instead of a cash refund, your reward comes in the form of Free Spins that can be used on the eligible slot game.
Promotion Details
Promotion Period
1 August 2026 – 14 August 2026
Minimum Stake
$25
Minimum Selections
2
Minimum Combined Odds
1.65
Reward
50% of your losing stake back as Free Spins
Maximum Reward
300 Free Spins
Eligible Slot
Jelly Boom by Evoplay
Free Spin Value
$0.10 each
How to Qualify
Taking part is straightforward.
To qualify, simply:
- Place your bet between 1 August and 14 August 2026.
- Stake $25 or more.
- Include at least two selections.
- Ensure the combined odds are 1.65 or higher.
- If your qualifying bet loses, you'll receive 50% of your stake back as Free Spins.
The process is simple, making it easy for tennis fans already planning to bet on the tournament.
Example Refunds
Here's what you could receive if your qualifying bet loses.
| Stake | Free Spins Awarded |
|---|---|
| $25 | 125 Free Spins |
| $40 | 200 Free Spins |
| $60 | 300 Free Spins |
| $100 | 300 Free Spins (Maximum Reward) |
Once your qualifying stake reaches $60, you've already unlocked the maximum reward available under this promotion.
Why Tennis Fans Like This Promotion
Tennis can be one of the most unpredictable sports to bet on.
A player may retire through injury.
Momentum can change after a single break of serve.
Underdogs regularly produce surprise victories.
That's exactly why this type of promotion is attractive.
While no promotion can guarantee winning bets, receiving Free Spins after a qualifying losing wager helps soften the disappointment and gives you another opportunity to enjoy your gaming experience.
Tips Before Placing Your Bet
Research always matters.
Before placing your selections, consider:
- Recent player form
- Head-to-head history
- Hard-court performance
- Injury updates
- Scheduling and fatigue
- Current tournament momentum
Making informed selections is always preferable to simply choosing favourites based on rankings alone.
Important Terms
Not every wager qualifies.
The following bets are excluded:
- Cashed Out Bets
- BetBuilder Bets
- System Bets
- Free Bets
- Void Bets
Only settled qualifying bets are eligible for this promotion.
Always read the full promotion terms before participating.
Is the Cosmobet National Bank Open Promotion Worth It?
If you already intended to place a qualifying tennis bet, this promotion adds extra value.
Instead of receiving nothing if your selections lose, you'll receive Free Spins that allow you to continue playing on the eligible slot.
Just remember that:
- The reward is Free Spins rather than cash.
- The maximum reward is capped at 300 spins.
- Any winnings from the spins may be subject to additional promotional terms.
For many players, it's a useful safety net during one of the biggest tennis tournaments of the season.
Frequently Asked Questions
What is the Cosmobet National Bank Open Promotion?
It's a limited-time sportsbook promotion where qualifying losing tennis bets receive 50% of the stake back as up to 300 Free Spins.
How much do I need to bet?
Your qualifying bet must be at least $25.
How many selections are required?
You need a minimum of two selections with combined odds of at least 1.65.
Which slot are the Free Spins for?
The Free Spins are valid on Jelly Boom by Evoplay.
What's the maximum reward?
The promotion is capped at 300 Free Spins, equivalent to $30 in spin value.
When does the promotion end?
The offer runs until 14 August 2026.
Final Thoughts
The Cosmobet National Bank Open Promotion is a solid option for tennis fans looking to add a little extra value to their tournament wagers. While it doesn't eliminate the risk of betting, it does provide a chance to recover part of a qualifying losing stake in the form of Free Spins.
If you're already planning to follow the action at the National Bank Open, this limited-time offer is worth considering before placing your selections.
As always, gamble responsibly, stick to your budget, and make sure you understand the promotion's full terms and conditions before taking part.
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Cosmobet National Bank Open Promotion 2026 – Get Up to 300 Free Spins
If you're planning to bet on one of tennis's biggest tournaments, the Cosmobet National Bank Open Promotion gives you an extra reason to get involved. Instead of walking away empty-handed if your prediction misses, eligible players can receive 50% of their losing…Aug 04, 2026 Read More