MelBet ties a dedicated cashback offer to BLAST Slam, one of the recurring Counter-Strike 2 tournament stops on the BLAST Premier calendar, paying back up to 20% of total stake to bettors active across each event. Unlike MelBet's weekly promotions, this one runs in four separate bursts spread across the year rather than continuously — which makes the calendar itself as important to understand as the cashback percentages.
The Four Tournament Windows That Count
Cashback is calculated and awarded separately for each of four BLAST Slam events during 2026, and bets only count toward a given tournament's cashback if placed and settled inside that tournament's own dates — activity outside these windows, even on a BLAST Slam match played just before or after, doesn't contribute to any of the four totals.
| Tournament | Betting window (UTC+3) | Cashback paid |
|---|---|---|
| BLAST Slam VI | 03.02.2026 00:00 – 15.02.2026 23:59 | 17.02.2026 |
| BLAST Slam VII | 26.05.2026 00:00 – 07.06.2026 23:59 | 09.06.2026 |
| BLAST Slam VIII | 29.09.2026 00:00 – 11.10.2026 23:59 | 13.10.2026 |
| BLAST Slam IX | 17.11.2026 00:00 – 29.11.2026 23:59 | 01.12.2026 |
The gap between a tournament ending and cashback landing runs about two days each time — bettors watching for BLAST Slam VI's cashback, for instance, shouldn't expect it until the 17th, two days after the tournament itself wrapped on the 15th.
Which Bets Actually Qualify
A qualifying bet needs a stake of at least 3 USD, and — as with several of MelBet's other sports cashback offers — the odds rules split by bet type. Single bets need odds of 1.50 or higher; accumulators need 3 or more selections with each of those selections priced at 1.40 or higher. Critically, an accumulator doesn't need every leg tied to BLAST Slam — only at least one selection has to come from a BLAST Slam 2026 series match, meaning a mixed accumulator combining a BLAST Slam pick with football or basketball selections still counts in full, provided the odds and selection-count minimums are met.
Handicap and totals bets are excluded, along with bets from a bonus account, cancelled or sold bets, Advancebets, promo-code bets, refunded bets, and any bet settling at odds of exactly 1.00. Only real-money bets that are both placed and fully settled inside the specific tournament window count toward that tournament's total.
The Tiered Percentages, Worked Through
Cashback scales with how many eligible bets are placed and settled during a single tournament — not across the whole year, but reset fresh for each of the four events:
| Eligible bets in the tournament | Cashback rate |
|---|---|
| 3–5 | 10% |
| 6–10 | 12% |
| 11–15 | 15% |
| 16 or more | 20% |
The rate applies to the tournament's total stake, not an average per bet, which rewards volume differently than MelBet's average-stake-based weekly offers. A bettor placing 8 qualifying bets during BLAST Slam VII totalling 240 USD in stakes lands in the 6–10 bracket at 12%, for a 28.80 USD cashback. Push that same total stake across 18 bets instead of 8 — same 240 USD overall, but spread thinner — and the bettor crosses into the 16-or-more bracket at 20%, raising the cashback to 48 USD despite staking the identical total amount, purely by placing more qualifying bets to reach the top tier.
The Floor, the Cap, and Timing
Two numeric limits bracket every tournament's payout. The floor sits at 0.5 USD — a tournament with only a handful of small qualifying bets that calculates to less than that amount doesn't generate a payable cashback at all. The ceiling is 50 USD per tournament, so a bettor whose calculated cashback would otherwise exceed that (for example, staking heavily enough at the 20% tier to cross 250 USD in total stake) is capped at 50 USD regardless of how much larger the theoretical figure would be.
Once credited, the cashback only stays usable for 72 hours — a tight window matching the free bet validity seen in some of MelBet's other football-focused offers, and considerably shorter than the multi-day windows on MelBet's deposit-based promotions.
Wagering the Cashback
The credited amount has to be wagered 5 times over through accumulator bets, each accumulator containing 4 or more selections, with at least 4 of those selections priced at 1.40 or higher. This mirrors the same 5x-multiplier, 4-leg-accumulator structure used in MelBet's app cashback offer, though that offer's own bonus validity runs a full 5 days rather than BLAST Slam cashback's tighter 72-hour clock — a meaningfully shorter runway to both build and settle enough qualifying accumulators.
As with MelBet's other accumulator-based wagering requirements, a refunded selection inside an otherwise-winning accumulator gets dropped from the selection count when checking the 4-selection minimum, and handicap/totals bets don't count toward the requirement at all. Any leftover bonus balance after wagering is complete rolls into the main balance up to the original cashback amount, while anything smaller than the minimum stake left over afterward is forfeited.
Restrictions to Keep in Mind
Taking part requires a completed profile, an active opt-in to bonus offers, and pressing "Take part" on the offer page — none of which happens automatically just by betting on BLAST Slam matches. The offer can't be combined with any other active MelBet promotion, is limited to one bonus per account, family, IP address, and device across the entire BLAST Slam 2026 series (not per tournament), and remains subject to MelBet's standard right to review betting activity, request identity verification, and amend or cancel the offer at any time.