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Drafting and Free-Riding in Mass-Start Triathlon: Evidence from a COVID-19 Start-Format Discontinuity

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  • Reichel, Felix

Abstract

Drafting in the swim leg of mass-start triathlon transfers a hydrodynamic cost advantage to the bike and run, where it surfaces as a change in relative rank. I use cross-stage rank improvement as a reverse proxy for free-riding and study its determinants in a ten-year panel of athlete × event records centred on 2020, when COVID-19 response policies replaced mass starts with individually staggered starts and mechanically curtailed drafting. A compact two-stage contest model, in which drafting enters the bike–run stage as a multiplicative cost shifter, organises the predictions. Identification combines pooled OLS with athlete and event fixed effects and a sharp regression-discontinuity design at the 2019/2020 cut-off. Free-riding was substantial before 2020, fell sharply in 2020 (a local-linear RDD estimate of about −31 rank places; a local-cubic estimate of about −92), and recovered only partially afterwards. The gains are largest for weaker swimmers and deeper drafting positions, the gender gap is modest, and they rise with swim-group size at an estimated log–log elasticity of about 0.43. The 2020 disruption thus acts as a contraction of the feasible set for free-riding, and its recovery is uneven rather than broad-based.

Suggested Citation

  • Reichel, Felix, 2026. "Drafting and Free-Riding in Mass-Start Triathlon: Evidence from a COVID-19 Start-Format Discontinuity," SocArXiv dyrcf_v2, Center for Open Science.
    • Handle: RePEc:osf:socarx:dyrcf_v2
    DOI: 10.31219/osf.io/dyrcf_v2
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    References listed on IDEAS

    as
    1. Konrad, Kai A., 2009. "Strategy and Dynamics in Contests," OUP Catalogue, Oxford University Press, number 9780199549603.
    2. Jonathan Guryan & Kory Kroft & Matthew J. Notowidigdo, 2009. "Peer Effects in the Workplace: Evidence from Random Groupings in Professional Golf Tournaments," American Economic Journal: Applied Economics, American Economic Association, vol. 1(4), pages 34-68, October.
    3. Todd McFall & John Whitehead, 2024. "Measuring the Impact of the COVID-19 Pandemic on Elite Swimming Performance," Journal of Sports Economics, , vol. 25(5), pages 634-656, June.
    4. Huntington-Klein Nick, 2023. "Linear Rescaling to Accurately Interpret Logarithms," Journal of Econometric Methods, De Gruyter, vol. 12(1), pages 139-147, January.
    5. Masaya Nishihata, 2022. "Heterogeneous peer effects by gender, task, and monetary incentive: Evidence from speed skating," Southern Economic Journal, John Wiley & Sons, vol. 89(1), pages 62-89, July.
    6. Joshua D. Angrist & Jörn-Steffen Pischke, 2009. "Mostly Harmless Econometrics: An Empiricist's Companion," Economics Books, Princeton University Press, edition 1, number 8769, December.
    7. Stergios Skaperdas, 1996. "Contest success functions (*)," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 7(2), pages 283-290.
    8. Finn Spilker, 2025. "Higher, Faster, Further: Performance Heterogeneity and Social Facilitation in Professional Track and Field," Journal of Sports Economics, , vol. 26(3), pages 268-289, April.
    9. Gürtler, Oliver & Struth, Lennart & Thon, Max, 2023. "Competition and risk-taking," European Economic Review, Elsevier, vol. 160(C).
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