Methodology

Abstract

The Adjusted Run Equivalent (ARE) model estimates physiological effort normalization and emotional validity for any declared race distance — Saturday 10-milers, marathons, and multi-day ultras — under declared environmental and lifestyle conditions. All calculations are performed in SI units per IMAC Standard 12.4. The marathon remains the committee's reference currency for bragging-rights calibration; it is not a participation prerequisite.

Regression and environmental weighting

Temperature, terrain, altitude, elevation gain, wind, and humidity contribute through piecewise, logarithmic, and diminishing-return functions defined in the IMAC 4.x and 3.x series. Optional ancillary factors undergo compression per IMAC 6.2 revision 1.1. Optional finish temperature uses a finish-weighted blend per IMAC 4.1 revision 1.1. Optional body mass enables caloric equivalence in Del Taco Grilled Chicken Soft Tacos per IMAC 6.5.

Committee debate

13 voting members. Typical outcome: 9-4, with passionate minority report.

The committee remains divided on whether accidentally listening to Nickelback during miles 18–21 constitutes an adjustment event. Subcommittee formed. No ETA.

Outputs

• Official Distance — participant-declared race length (normalized to km).
• Equivalent Distance (EMD) — physiological normalization under ideal conditions (marathon-referenced calibration).
• Emotionally Valid Distance — suffering credit, intentionally exaggerated within bounded absurdity policy.
• Finish times — when declared, Equivalent Finish and Emotionally Valid Completion Time apply the same distance modifiers to chip time (supports multi-day ultras).