Founding cohort — 3 reviews

Backtest Evidence Review

I offer a fixed-scope methodological risk screening of one backtest, delivered in 2 business days after complete intake. The verdict covers evidence quality only — not whether to trade, buy, or deposit capital.

€79 founding review · 2 business days · 3 slots

Request a founding review — €79

Request first. I confirm fit before payment. Materials only after payment is verified.

Who this is for

Builders of systematic or rule-based strategies who already have trades/results exported.
People who saw green backtests but feel uneasy about costs, OOS, or “too good” metrics.
Creators sharing backtests who want a second pair of eyes on methodology.

Not for: personalized investment advice, asset picks, parameter tuning, or “will this make money?” guarantees.

What I screen for

Look-ahead / leakage and train-test contamination (risk screening, not certification)
Unrealistic fees, slippage, or fill assumptions
Weak IS/OOS separation or walk-forward design
Retrospective parameter selection (implicit p-hacking)
Multiple testing without correction
Missing or weak null / permutation tests
Low robustness across periods
Gap between backtest narrative and plausible live execution

I do not re-run your full backtest or guarantee absence of leakage.

What you receive (€79 scope)

Methodology scorecard
Five primary evidence risks (ranked)
One recommended next experiment (scope only)
Evidence verdict: insufficient · exploratory · candidate for prospective validation
One round of clarifications (async)

Full scope, limits, and data policy →

What you do not receive

Financial advice, signals, or “buy/sell/deposit” guidance
Strategy fixes, rewrites, or parameter optimization
Running untrusted code, API keys, or exchange access
Legal, tax, or regulatory sign-off
Full backtest reproduction or exhaustive error search

Process (3 steps)

Request — short form; I check fit and scope (no materials yet).
Pay — Stripe link after fit and pre-contractual confirmations; then client intake by email.
Deliver — report within 2 business days of complete intake; data deleted per policy.

About the reviewer

Xavier Gisbert Blanquer — independent reviewer

I built and pre-registered six hypothesis tests (H001–H006) in a personal crypto-strategy research lab, using out-of-sample, null and minimum-sample gates. None passed the gates for live capital.

Public methodology sample: H001 evidence review

I pre-register hypotheses in a personal research lab (H001–H006). Under pre-registered gates, none passed for live capital — including H001, which showed positive OOS PnL on paper but failed null and sample gates. The public sample summarizes H001 only.

Sample output

Abbreviated summary of pre-registered experiment H001 that failed evidence gates despite positive OOS PnL on paper.

Read sample H001 summary

Disclaimer: Backtest Evidence Review is educational methodology feedback on the materials you provide. It is not investment advice, portfolio management, or a recommendation to trade any instrument. Past backtest results do not predict future performance. You remain responsible for all trading and compliance decisions.

Independent personal project · Not affiliated with any employer or consultancy brand.
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