NHL expansion and fan allegiance: a mathematical modelling study

Light, Jennifer; Chernin, Alina; Heffernan, Jane M.

doi:10.1186/s40929-016-0009-0

Mathematics-in-Industry Case Studies

2016

DOI: 10.1186/s40929-016-0009-0

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NHL expansion and fan allegiance: a mathematical modelling study

Jennifer Light

Alina Chernin

Jane M. Heffernan

Abstract: Expansion of the NHL hockey league is of current interest. Success of an expansion team will rely on approved geographic locations, and most importantly fan support. Fan allegiance can be likened to infectious disease transmission, whereby individuals are susceptible, infected and recovered from a current team's hockey season. We employ an infectious disease model to assess the viability of certain Canadian and American cities that have been discussed as potential locations for NHL expansion in the past decade… Show more

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“…Ice hockey is a sport that continues to gain popularity among spectators and players both domestically and abroad, with over 1 million active North American players alone 1 . National Hockey League's expansion to 31 teams in 2018 and 32 in 2021 further underscores the sport's meteoric rise in appeal 2 . Hockey is a unique sport that combines large, powerful players who can accelerate to speeds of up to 50 km/h wielding solid vulcanized rubber pucks that are projected at 160 km/h 3,4 .…”

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Skating on Thin Ice: Craniofacial Injuries in Amateur Ice Hockey

Pierrot

Weber²,

Wolfe³

et al. 2021

Journal of Craniofacial Surgery

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bleeding profusely and probably contaminated, we recommend contacting emergency services. If a laceration is not suspected, the layperson should next move on to determining whether the injury is a concussion or contusion. If only bruising is seen, and the player exhibits no significant accompanying symptoms, then the player and layperson may decide together whether to continue playing. If there are more severe symptoms such as confusion, headache, lack of coordination, or blurry vision, concussion should be suspected. If a male player experiences 1 to 2 of these symptoms, they should be instructed to sit out for the remainder of the game. If they experience 3 or more symptoms, the layperson should consider seeking immediate medical help. This algorithm is largely the same for females, albeit with one important distinction: because females tend to suffer from more concussions than males, and because concussions in females are associated with worse prognoses, we suggest a more cautious approach to female players with suspected concussion. If one sign concerning for concussion is present, the player should be instructed to sit out, while 2 or more symptoms should prompt recruitment of emergency medical services. Prior studies have suggested that many players are aware of the symptoms of concussions, but often elect to continue playing after exhibiting these signs. 13 Proper application of this algorithm would prevent injuries from further progression during play, and would indicate proper care for a demographic at especially high risk of morbidity.This study carries several limitations which are primarily a consequence of usage of the NEISS database. Although NEISS provides a significant amount of information regarding injury mechanism and location, it cannot possibly encompass all of the factors that contribute to the injuries actually incurred. It would be impossible to realistically determine all of the underlying attributes that result in lacrosse-related injuries, and consequently, NEISS elects to view these through the lens of a select few. Furthermore, because the database does not provide results when estimates are below a certain value, it is possible that some results were close to but still underthe cutoff, prohibiting us from examining the corresponding data. Future studies should seek to characterize the injuries through other perspectives, and potentially use these to inform ways for the layperson to effectively intervene. Acquiring a thorough understanding of the events that promote trauma incurred from playing lacrosse would be among the most optimal ways to ensure safety for the players, and to avert injuries before they have a chance to occur.

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mentioning

confidence: 99%

Skating on Thin Ice: Craniofacial Injuries in Amateur Ice Hockey

Pierrot

Weber²,

Wolfe³

et al. 2021

Journal of Craniofacial Surgery

View full text Add to dashboard Cite

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A mathematical optimization framework for expansion draft decision making and analysis

Booth

Shalaby

2019

Journal of Quantitative Analysis in Sports

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In this paper, we present and analyze a mathematical programming approach to expansion draft optimization in the context of the 2017 NHL expansion draft involving the Vegas Golden Knights, noting that this approach can be generalized to future NHL expansions and to those in other sports leagues. In particular, we present a novel mathematical optimization approach, consisting of two models, to optimize expansion draft protection and selection decisions made by the various teams. We use this approach to investigate a number of expansion draft scenarios, including the impact of “collaboration” between existing teams, the trade-off between team performance and salary cap flexibility, as well as opportunities for Vegas to take advantage of side agreements in a “leverage” experiment. Finally, we compare the output of our approach to what actually happened in the expansion draft, noting both similarities and discrepancies between our solutions and the actual outcomes. Overall, we believe our framework serves as a promising foundation for future expansion draft research and decision-making in hockey and in other sports.

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NHL expansion and fan allegiance: a mathematical modelling study

Cited by 2 publications

References 3 publications

Skating on Thin Ice: Craniofacial Injuries in Amateur Ice Hockey

Skating on Thin Ice: Craniofacial Injuries in Amateur Ice Hockey

A mathematical optimization framework for expansion draft decision making and analysis

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