DOES JET LAG CREATE A PROFITABLE OPPORTUNITY FOR NFL BETTORS?

2014 ◽  
Vol 8 (1) ◽  
pp. 41-52
Author(s):  
Andy Fodor

Traveling across multiple time zones, especially from east-to-west so that hours are “lost”, has documented negative effects on athletic performance. Nichols (2012) finds mixed evidence that sports betting markets fail to account for these effects. We reconsider, for the 2005-2010 NFL regular seasons, the “jet lag” hypothesis with more direct methods. We find that closing lines of NFL contests are set irrationally such that the jet lag effect is not appreciated. More importantly, we are the first to document that betting against potential jet lag teams proves to be markedly profitable. This profitability is statistically significant, which is a standard very rarely encountered throughout the literature. Consistent with our conjectures, we find these results to be even stronger when only afternoon games are kept in the sample and when division games are omitted from the sample.

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Andrew W. McHill ◽  
Evan D. Chinoy

AbstractOn March 11th, 2020, the National Basketball Association (NBA) paused its season after ~ 64 games due to the Coronavirus 2019 (COVID-19) outbreak, only to resume ~ 5 months later with the top 22 teams isolated together (known as the “bubble”) in Orlando, Florida to play eight games each as an end to the regular season. This restart, with no new travel by teams, provided a natural experiment whereby the impact of travel and home-court advantage could be systematically examined. We show here that in the pre-COVID-19 regular season, traveling across time zones reduces winning percentage, team shooting accuracy, and turnover percentage, whereas traveling in general reduces offensive rebounding and increases the number of points the opposing (home) team scores. Moreover, we demonstrate that competition in a scenario where no teams travel (restart bubble) reduces the typical effects of travel and home-court advantage on winning percentage, shooting accuracy, and rebounding. Thus, home-court advantage in professional basketball appears to be linked with the away team’s impaired shooting accuracy (i.e., movement precision) and rebounding, which may be separately influenced by either circadian disruption or the general effect of travel, as these differences manifest differently when teams travel within or across multiple time zones.


Physiology ◽  
1986 ◽  
Vol 1 (5) ◽  
pp. 156-160 ◽  
Author(s):  
MC Moore-Ede

The circadian pacemakers, which time the approximately 24-h cycle of sleep and wakefulness, resynchronize only slowly after an abrupt phase shift in environmental time cues. Consequently, we are not well equipped to cope with jet travel across multiple time zones or with rotating shift work schedules, neither of which was in the evolutionary experience of the human species. Recent studies of the human circadian system suggest some strategies to minimize the ill effects of jet lag and shift work.


2015 ◽  
Vol 46 (3) ◽  
pp. 361-370 ◽  
Author(s):  
Tanja Becker ◽  
Thomas Penzel ◽  
Ingo Fietze
Keyword(s):  
Jet Lag ◽  

2019 ◽  
pp. 232-247
Author(s):  
Vidya Krishnan

Distant travels can affect sleep in many ways. Jet lag disorder is a specific circadian sleep disorder characterized by misalignment of the inherent circadian rhythm and the external environment caused by rapid travel across multiple time zones. Travel fatigue due to repetitive long-distance travels may affect a traveler’s daytime function and mood. Airplane travel and high-altitude locations may contribute to travel-related fatigue. The sleep environment—including the comfort of the bed, the ambient light, sounds, temperature, and air quality—can all interfere with optimal sleep. Changes in daytime eating, drinking, and activity levels can also impose stresses on sleep. Countermeasures for each of these conditions can help ensure a more restful journey. Duration of travel, distance of journey, time for preparation, and time for post-travel recovery will all influence the recommendations to mitigate jet lag disorder symptoms.


1990 ◽  
Vol 10 (1) ◽  
pp. 20-30 ◽  
Author(s):  
Patrick J. OʼConnor ◽  
William P. Morgan

2009 ◽  
Vol 4 (3) ◽  
pp. 394-401 ◽  
Author(s):  
W. Christopher Winter ◽  
William R. Hammond ◽  
Noah H. Green ◽  
Zhiyong Zhang ◽  
Donald L. Bliwise

Purpose:The effect of travel on athletic performance has been investigated in previous studies. The purpose of this study was to investigate this effect on game outcome over 10 Major League Baseball (MLB) seasons.Methods:Using the convention that for every time zone crossed, synchronization requires 1 d, teams were assigned a daily number indicating the number of days away from circadian resynchronization. With these values, wins and losses for all games could be analyzed based on circadian values.Results:19,079 of the 24,121 games (79.1%) were played between teams at an equal circadian time. The remaining 5,042 games consisted of teams playing at different circadian times. The team with the circadian advantage won 2,620 games (52.0%, P = .005), a winning percentage that exceeded chance but was a smaller effect than home field advantage (53.7%, P < .0001). When teams held a 1-h circadian advantage, winning percentage was 51.7% (1,903–1,781). Winning percentage with a 2-h advantage was 51.8% (620–578) but increased to 60.6% (97–63) with a 3-h advantage (3-h advantage > 2-hadvantage = 1-h advantage, P = .036). Direction of advantage showed teams traveling from Western time zones to Eastern time zones were more likely to win (winning percentage = .530) than teams traveling from Eastern time zones to Western time zones (winning percentage = .509) with a winning odds 1.14 (P = .027).Conclusion:These results suggest that in the same way home field advantage influences likelihood of success, so too does the magnitude and direction of circadian advantage. Teams with greater circadian advantage were more likely to win.


2021 ◽  
Vol 16 (4) ◽  
Author(s):  
Isabel Abinzano ◽  
Maria Jesus Campion ◽  
Luis Muga ◽  
Armajac Raventós-Pujol

This paper transfers and adapts the Black-Litterman portfolio management model and its subsequent generalizations to the characteristics and specificities of assets quoted on sports betting markets. The results show that these assets are suitable for the application of portfolio management models with the possible inclusion of investors’ opinions. Information based on the variability of market prices and the attention received by NBA teams in Google Trends is successfully used to simulate the opinions expressed by a hypothetical portfolio manager. Furthermore, the assets are suitable for inclusion in portfolios in which managers are seeking returns uncorrelated with other assets.


Author(s):  
Russell G. Foster ◽  
Leon Kreitzman

While time of day, interacting with an individual’s chronotype, can have an important impact upon performance and health, severe disruption of the circadian system adds another level of complexity and severity. ‘When timing goes wrong’ considers the effects of flying across multiple time zones, resulting in jet lag, and shift work on human health. Sleep and circadian rhythm disruption is almost always associated with poor health. Four circadian rhythm sleep disorders have been identified: advanced sleep phase disorder, delayed sleep phase disorder, freerunning, and irregular sleep timing. Sleep and circadian rhythm disruption in mental illness and neurodegenerative disease is also discussed.


1998 ◽  
Vol 32 (2) ◽  
pp. 101-106 ◽  
Author(s):  
R. Manfredini ◽  
F. Manfredini ◽  
C. Fersini ◽  
F. Conconi

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