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Predictive Modelling

Understand which scenarios win, and what has to be true for each.

Scenario models that translate turnout, swing and consolidation assumptions into margin outcomes — used internally for planning, never published.

Short answer

What is Predictive Modelling?

Scenario models that translate turnout, swing and consolidation assumptions into margin outcomes — used internally for planning, never published.

The Challenge

What usually goes wrong

Campaigns make enormous resource decisions on gut feeling about turnout and consolidation. Modelling does not remove uncertainty, but it makes the assumptions explicit and testable instead of implicit and unexamined.

Our Approach

How we run it

  1. 01

    Baseline model construction

    Historical results, current survey data and demographic structure are combined into a baseline expectation with stated confidence bounds.

  2. 02

    Scenario definition

    We model the campaign’s real strategic questions — a three-cornered contest, a turnout surge in specific segments, an alliance formalising late.

  3. 03

    Sensitivity analysis

    Each variable is tested for how much it moves the result, identifying the small number of factors that genuinely decide the seat.

  4. 04

    Continuous re-basing

    As tracking waves arrive, the model is updated so plans respond to movement rather than to the initial assumption.

Deliverables

  • Baseline scenario model with confidence bounds
  • Named scenario set with margin outcomes
  • Sensitivity ranking of decisive variables
  • Refreshed model per tracking wave

Tools & Data Sources

  • Historical result time series
  • Survey integration pipeline
  • Monte Carlo scenario simulation
  • Turnout elasticity modelling

Engagement Timeline

What happens, and when

  1. Week 1–2

    Baseline build

  2. Week 3

    Scenario workshop

  3. Week 3

    Sensitivity reporting

  4. Per tracking wave

    Rolling updates

    Handover and review

In Practice

Where this was deployed

Triangular Contest 2023Anonymised

Triangular Contest Strategy

Consolidated our vote rather than chasing the opponent’s — the only winning move in a three-way.

+16.4%
Vote Share Increase
27,351
Margin
63%
Opposition Vote Split

Triangular Contest Strategy

In a triangular contest, effort spent attacking one opponent frequently transfers votes to the other. The instinct to fight on both fronts is almost always fatal.

Read the full case study

FAQ

Questions we are asked

No. Modelling is an internal planning tool for our clients. We do not publish projections, forecasts or predicted outcomes anywhere, including our Election Calendar, which carries factual schedule information only.

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