▌ /uk/ · UK calculators in development
Bookmaker
rules baked
into the math.
William Hill pays a 10% bonus on total returns when a Lucky 15 lands all four selections. Paddy Power pays the same 10% on a 4-from-4. Coral, Ladbrokes, Sky Bet each have their own rule book — and Rule 4 deductions apply across all of them on horse-racing markets.
The UK calculators encode every published rule. Lucky 15, Patent, Matched Betting, Each Way, Trixie, Yankee — none of the existing UK calculator sites do this. We will.
9+
UK calculators
0
Affiliate links Q3 2026
No
UKGC license required
Apr 2026
Launched
Frequently asked
05 / questionsQ01 How is BettorStack UK different from AceOdds or OddsMonkey?
Each UK calculator encodes bookmaker-specific bonus rules from the published rule books — William Hill pays a 10% bonus on Lucky 15 total returns when all four selections win, Paddy Power pays the same 10% on a 4-from-4, Coral and Ladbrokes and Sky Bet each have their own structures. None of the existing UK calculator sites encode these rules. Rule 4 deductions for non-runners on horse-racing markets are also handled per-market.
Q02 When do UK calculator pages launch?
The nine US calculators are live now, and the Rule 4 deduction calculator is the first UK page to ship. Lucky 15, Patent, Matched Betting, Free Bet and Each Way follow, then the wider accumulator family — Trixie, Yankee, Treble and the rest. The full UK catalog covers nine to twelve calculators. We update this page the day each one ships rather than pre-announcing dates.
Q03 Why no UK affiliate links?
For the first six months, BettorStack UK runs as a pure-calculator service with no bookmaker affiliate links. The UK Gambling Commission's affiliates guidance carves out tools that do not promote specific operators — pure calculators without bookmaker links do not require a UKGC licence. UK affiliate links roll out late 2026 with full UKGC-compliant disclosure on every link, after the calculator pages have indexed and built initial authority.
Q04 What about Rule 4 deductions and non-runners?
Rule 4 is a deduction applied to winning bets when a horse is withdrawn from a race after odds have been priced. The deduction scales with the withdrawn horse's odds — for example, a horse withdrawn at 2/1 (decimal 3.0) means a 30 pence per pound deduction on winnings from the same race. Each UK calculator with horse-racing applicability (Each Way, Lucky 15 with horse selections) handles Rule 4 as a toggle plus deduction-percentage input.
Q05 Do you cover Lucky 31 and Lucky 63?
Yes — Lucky 31 (5 selections, 31 bets: 5 singles, 10 doubles, 10 trebles, 5 fourfolds, 1 five-fold) and Lucky 63 (6 selections, 63 bets) are planned for a later UK release, alongside Heinz (6 selections, 57 bets minus singles), Super Heinz (7 selections, 120 bets) and Goliath (8 selections, 247 bets). Each will handle bookmaker-specific bonus rules the same way the Lucky 15 calculator does.
/ — US hub
In the US?
The US hub at / covers parlay, hedge, Kelly,
no-vig, arbitrage — plus per-state US tax math (federal 24% + state withholding).