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Pacing and Performance Analysis of the World's Fastest Female Ultra-Triathlete in 5x and 10x Ironman.

PMID 32121027 (2020): pacing — Time-trial performance (study note for endurance athletes).

Last updated/Feb 23, 2026, 11:13 PM

Study note • PMID 32121027

Pacing and Performance Analysis of the World's Fastest Female Ultra-Triathlete in 5x and 10x Ironman.

International journal of environmental research and public health2020 • DOI 10.3390/ijerph17051543
Evidence C60/100
Action 2: Consider

Worth trying if it fits your goal and context.

ELI5

In plain language

The aim of the present case study was to analyse the performance data of the world's best female ultra-triathlete setting a new world record in a Quintuple (5xIronman) and… (controlled study; elite triathletes).

The abstract doesn’t indicate a clear change in Time-trial performance under the tested conditions. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.

Takeaways

What the abstract suggests

  • Study question: The aim of the present case study was to analyse the performance data of the world's best female ultra-triathlete setting a new world record in a Quintuple (5xIronman) and…
  • The abstract doesn’t indicate a clear change in Time-trial performance under the tested conditions.
  • Population: elite triathletes.
  • Protocol cues: abstract may omit dose/timing; use the full paper to replicate accurately.

Protocol

Protocol (as reported)

  • Intervention/exposure: pacing.
  • Dose/time/duration: abstract doesn’t include enough detail; use the full paper’s methods section.
  • Outcomes: Time-trial performance.
  • Replication note: abstracts often omit adherence and timing; confirm details before changing training or supplementation.

Fit

Who it helps, and who should skip it

Who it helps

  • Athletes similar to the study population (elite triathletes) working on pacing.
  • Athletes who can measure Time-trial performance with a repeatable workout or time-trial effort.

Who should skip

  • If you have symptoms or conditions that make the intervention risky, get professional guidance.
  • If you’re near race day and can’t safely test, defer the experiment.

Methods

What the study actually did

  • Design: controlled study.
  • Population: elite triathletes.
  • Outcomes measured: Time-trial performance.
  • Source: PubMed PMID 32121027 (2020) — International journal of environmental research and public health.

Results excerpt

What the abstract reports

There was no difference between the race days of the average speed neither in cycling nor running.

Note: excerpts are short; for full context, read the paper.

Limits

Limitations & bias

  • Abstract-only summaries can miss critical details (population, protocol, adherence, and context).
  • Single studies often don’t generalize to your event, history, and training load; treat results as a starting point.
  • If your context differs (elite vs recreational; cycling vs running), adjust expectations and be conservative.
  • This is performance information, not medical advice.

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Sources