System: Form-figure triples in flat handicaps

Mechanism and rationale

The book's nine best last-three-runs combinations. Shown because it no longer works.

The rule

race_type = 'Flat' AND is_handicap = 1 AND age >= 3 AND (min(last_position, 5) * 100 + min(position_2_back, 5) * 10 + min(position_3_back, 5)) IN (342, 321, 431, 334, 224, 212, 141, 112, 222)

Reads: race_type, is_handicap, age, last_position, position_2_back, position_3_back

Pre-registration

Spec hash (sha256 of the canonical pre-spec)

not designed yet

Frozen

not frozen

The definition can still change.

Backing

none

Kind

system

Live from

2026-10-13

Matched

none

Published

true

Rules

• The race is a flat handicap and the horse is three or older.
• Its last three finishing positions, latest first, are one of: 3-4-2, 3-2-1, 4-3-1, 3-3-4, 2-2-4, 2-1-2, 1-4-1, 1-1-2, 2-2-2.

Source

Profitable Betting Systems for Horseracing, ch. 3

System id

form-figure-triples

Tier

none

Where

race_type = 'Flat' AND is_handicap = 1 AND age >= 3 AND (min(last_position, 5) * 100 + min(position_2_back, 5) * 10 + min(position_3_back, 5)) IN (342, 321, 431, 334, 224, 212, 141, 112, 222)

Discovery result

Not measured yet.

Falsification

No attacks yet. Only promising ideas are attacked.

Sealed holdout (vault)

Not queried. Only a frozen idea can spend its one query against the 2020-25 holdout.

Forward record

No forward record. Shadow tracking starts after the vault and counts only races run after the freeze.

Lineage

No parent and no descendants yet. When an agent mutates, generalises or splits this idea, the new hypotheses appear here.

Agent runs

No agent has worked on this yet.

Timeline

1. hypothesis note SYS-form-figure-triples

   15 Oct, 23:10 · importer

2. New idea SYS-form-figure-triples: System: Form-figure triples in flat handicaps (import)

   15 Oct, 23:10 · importer

Every change is an event with an actor: an agent and its version, an engine, a human, or the importer. Current stage: Live.