For sportsbook operators

The flex parlay,
built as a product.

DraftKings counted over 30 million parlays that fell short by a single leg in one NFL season. Dynamic Parlays turn that near-miss frustration into a better player experience.

Proven live through the 2026 World Cup Winner · SiGMA Africa Startup Pitch Backed by SportsContentCo
5x
More winning tickets than the same bets settled as straight parlays
20%
Of Dynamic Parlay tickets are winners
+67%
Selections per betslip (4.79 → 8.02)
0%
Downtime and API errors
The mechanic

One loss kills a parlay. It does not have to.

Same ten selections, same stake, same odds feed.

Standard parlay All or nothing

Ten legs. One outcome pays.
10 of 10$36,848.00
9 of 10Nothing
8 of 10Nothing
One leg short of a five-figure win is worth exactly zero.

Dynamic Parlay Progressive ladder

Ten legs. Three outcomes pay.
10 of 10$24,708.60
9 of 10$1,443.90
8 of 10$95.40
A smaller payout on 10 of 10, in exchange for two outcomes that used to pay nothing. A winning outcome never returns less than the stake.
Live in production at Inbet
Live demo

Your Sportsbook. Your Brand. Your Betslip.

Dynamic Parlay renders inside your existing betslip and inherits your look and feel. Try the interactive demos below: pick a book, set the cut, move the slider.

The pattern

Sportsbooks have run this play twice already.

Both times, one sportsbook led the way, the market took time to respond, and within a few years it became an expected.

Wave 012011 → 2019

Cash out

Gave the customer a decision after the bet was struck. The first feature that made a running ticket feel like it was still theirs.

Standard across the market

8yrsFrom one exchange to an expectation

Betfair, 2011. By 2019 it was on essentially every European book. The stragglers spent those years explaining to customers why they did not have it.

Wave 022015 → 2021

Bet Builder and SGPs

Let the customer build their own market inside one game. It went from a Twitter hashtag to the largest product in the book.

Standard across the market

70%Of FanDuel’s NFL and NBA bets were same‑game parlays by 2023

Sky Bet, 2015. FanDuel took it to the US in 2019. By the 2021 NFL season, virtually every major US book had one.

Wave 032023 →

Flex and Dynamic Parlays

Lets the customer choose how many legs they can afford to miss. The ticket stops being all or nothing.

Started. Not finished.

5Operators have put a version in front of customers since 2023

Most stop at one forgiven leg, or two. Some pay a flat amount rather than a ladder. Some run inside a bet builder only. Some are stake‑back with a new name. The demand is settled. The engineering is not.

Two waves are settled. The third has started, and nobody has finished it.

Sources

Betfair cash out, 2011. Sky Bet #RequestABet, January 2015. FanDuel same‑game parlay, November 2019; by the 2021 NFL season the major US books had followed. Flutter reported same‑game parlays at 70% of FanDuel NFL and NBA bets in 2023. Wave three counts operator products live since 2023, including Hard Rock Bet Flex Parlay (July 2023, retooled September 2024) and kwiff Flex on Tzeract (December 2025). Product limits described in general terms and drawn from each operator’s own published description.

The player

The behaviour is the product.

Dynamic Parlays don’t just change how a bet settles. They change the bet a player is willing to build.

A player at home at night, city skyline in the window behind him, pumping his fist while looking at his phone. more of this
5× more winning tickets with Dynamic Parlays vs. traditional parlays.
01

More selections

“That extra leg no longer has to kill the ticket.” Players can build the bet they actually want instead of removing selections purely because of all-or-nothing risk.

02

More confidence to stake

“The ticket has more ways to return something.” Reducing binary outcomes changes the risk a player perceives when choosing their stake.

03

More reasons to come back

“A near miss doesn’t have to feel like a complete loss.” More winning experiences can turn parlay frustration into repeat engagement.

The economics shift with the player behaviour.

The margin question

Per-bet margin falls. Total revenue does not.

The first question every trading desk asks, answered in three parts.

You hold the dial

Eleven tiers, from no margin compromise at all upward. Set it per market and per segment, and move it.

The base expands

+14.6%Average stake
+67%Selections per slip

Both measured in production against the same book’s own straight parlays. Longer slips embed more margin per ticket.

Neutral before behaviour

A Netherlands book replayed its trailing year of parlays. At tier 0 the mechanic tracked its own GGR with almost no deviation.

Standard parlays protect margin.
Dynamic Parlays protect revenue.

The engine

Sits beside what you own. Never in front of it.

Betlabs is a pricing and settlement layer. Whoever runs the book stays in command of it.

Your sportsbook
  • Player builds a parlay, multi or acca
  • Your odds, your per-leg margins
  • Accounts, wallet, KYC, payments
Betlabs API
  • Max-cut model: deepest safe cut for this slip
  • Pricing engine: reprices every outcome tier
  • Margin tier: generosity held constant
Back to your betslip
  • Payout ladder rendered in your UI
  • Cash out and settlement instructions
  • Betlabs never touches operator funds

You send one API call. Betlabs carries the pricing, cut and margin logic behind it. That is why integration measures in days, not months.

40
Selections supported per slip
100s of millions
Outcome permutations repriced per adjustment
97 ms
p99 repricing latency
+100k req/s
Peak throughput, scales elastically on AWS

The full technical overview covers per‑slip cut depth, the eleven margin tiers, correlation‑safe pricing, cash out and settlement in detail. Read how Dynamic Parlays work →

The whole parlay bookLive

For SGPs and Betbuilder, Betlabs consumes per-outcome probabilities and returns payout configurations. Your own model is never replaced or exposed.

Cash outBuilt & tested

Full and partial, ladder-aware, and will never offer a mispriced exit against the book.

SettlementBuilt & tested

Idempotent, ladder-aware, and returns a payment instruction only.

Straight answers

What this is, and what it is not.

No supplier in this category tells you where they stop. Here is where we stop.

What Betlabs does

  • Prices forgiveness across the full parlay book
  • Governs your margin for every bet placed
  • Computes a safe cut depth per individual betslip
  • Returns ladders, cash-out prices and settlement instructions
  • Builds a front-end SDK with launch partners, so integration is not a UI project

What Betlabs does not do

  • Replace your sportsbook platform or trading system
  • Price your individual legs or run your SGP model
  • Hold player funds, wallets or accounts
  • Handle your market certification, which we scope together
Integration

Ten days, at our fastest.

Standard parlays go in first. Your platform, wallet and trading desk stay exactly where they are.

Day 0
Scoping call
Who owns the tech stack, and product roadmap.
Days 1 to 10
Integration
Standard parlays first. No platform dependency.
~1 month
First deployment live
SGPs and Betbuilder follow once the standard integration is in place.
Ongoing
You hold the tier
Dashboard exposure monitoring.
For trading and product teams

The six questions we always get.

Does paying out more often compress our margin?
Per-bet margin falls at higher tiers, but the base it is charged on expands by the same production numbers shown above. You set the tier, so the redistribution is a decision, not a consequence.
Will it cannibalise our existing parlay handle?
In part, and that is the commercial logic rather than a side effect. The question worth asking is not whether the upgrade happens, but whether it happens inside your book or a competitor's.
Is it too complex for our bettors?
The complexity sits in the engine, not the interface. The bettor sets one number and moves one slider. In production, bets placed grew 14% on average week on week over the first 8 weeks after launch; we expect that pace to slow as uptake matures. That is what adoption looks like when a mechanic is understood.
Do we have to replace our platform or SGP model?
No. You keep accounts, wallet, KYC, trading, bet placement, settlement of funds and your front end. For SGPs and Betbuilder, Betlabs consumes per-outcome probabilities and returns payout configurations. Your own model is never replaced or exposed.
Could we build this ourselves?
Capability is not the barrier. Time is. Twelve to eighteen months to design, test and certify in-house, against an integration completed in as little as ten days. Or you could launch a stake back, or flat flex in a couple of months.
How is trading risk and player abuse controlled?
Margin runs on the tier you set, and is adjusted in real time if variance turns against you.
Johnny Coetzer, founder of Betlabs

Sportsbooks gave bettors thousands of things to bet on, and almost no say in how the bet behaves. That is the part we changed.

Next step

Fifteen minutes tells you if this fits your book.

Book a 15-minute call

A working walkthrough, not a deck.

Or email info@bet-labs.io

One engine, whatever shape your business is.

Single book, multi-brand group, or platform partner rolling it out across your operator base.