System Builder
Build betting systems, back-test them over 8+ years of results, and get today's qualifiers.
The System Builder is part of RaceMetrics Pro
Filter 8+ years of UK & Irish results by race conditions, ratings, market and last-time-out form — with full P/L at SP and Betfair SP, breakdowns and daily qualifiers.
Go Pro — £49.99 first monthPart of RaceMetrics Pro (£75/month) — or get everything including the desktop software with Proform Premium (£97.50/month).
System Builder
Define conditions, back-test against results since 2018, then check today's qualifiers.
System Performance Follow-up
Equity Curve
cumulative P/L per price model, level stakes · bookie lines from 2023Breakdowns
Grid
break down by two things at onceRuns
Most recent first — capped at 2,000 rowsHoldout Check last 12 months vs the rest
Streaks & Drawdown
Goal Seek rules that improve your target
Auto-build build a system toward a target, step by step
Trim rules worth removing or loosening
Frontier volume vs return as one rule tightens
Staking Plans
Re-stakes the exact bets this system matched, at the chosen price. A finite bank that can bust (stop at £0). Kelly uses the system's realised edge on each runner's market-implied chance — illustrative, not a forward model. Bust-risk = % of 200 reshuffles of the bet order that bust the bank.