Momentum in Team Winning

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In professional sports momentum swings can be attributed to teams and players going on hot or cold streaks. Does momentumthe 2005 Miami Heat come back if the Dallas Mavericks win the 3rd game? Do the 2009 Redwings win the Stanley Cup if they win game 3 instead of game 5?

These swings have been the focus of studies on sports psychology over the years (Gayton et. al. 1993). Psychological momentum has been defined by the Oxford Dictionary of Sports Science as, “the positive or negative change in cognition, affect, physiology, and behavior caused by an event or series of events that affects either the perceptions of the competitors, or perhaps, the quality of performance and the outcome of the competition.” “Positive momentum is associated with periods of competition such as a winning streak, in which everything seems to ‘go right’ for the competitors. In contrast, negative momentum is associated with periods, such as a losing streak, when everything seems to ‘go wrong’” (Kent, 2007).

It is difficult to think of your favorite sports team without thinking about some type of momentum swing.

Super Win for the Steelers  (Doug Mills/The New York Times)
Super Win for the Steelers (Doug Mills/The New York Times)

Steelers fans will remember James Harrison’s 100yd interception return in last year’s Super Bowl. The Cardinals, in reach of a 14-10 halftime lead, were held at 7 when Harrison intercepted Kurt Warner’s pass to return the ball for a 100yd touchdown.  The possible 14 point swing was a huge blow to the Cardinals and was, for Arizona’s offensive coordinator Todd Haley, “the difference in the game.”

Pacers fans think Reggie Miller vs the Knicks in Game 5 of the 1994 Eastern Conference Finals, Miller scored 25 of his 39 points in the fourth quarter leading the Pacers to come from behind to a 93-86 victory.

Such memorable moments in professional sports!   Was this the act of “Big Mo,” that “elusive, powerful spirit of sport, who sits in fickle judgment over all competitors” (Kauss, 1980), or is too much credit being given to momentum and its impact on the outcome of sports competition. . .

Does the phenomenon of momentum really exist?

In the minds of sports enthusiasts, the media, the coaches and the players themselves, momentum exists.  If it does, how do we quantify it? Results of experimental studies attempting to identify a relationship between momentum and athletic performance are inconclusive. Several conceptual models of psychological momentum have been proposed. The two main patterns indicated are the multidimensional model and the projected performance model.

MultidimensionalThe Multidimensional Model of Momentum in Sports (Taylor & Demick, 1994) defines momentum as a “positive or negative change in cognition, physiology, affect, and behavior caused by a precipitating event or series of events that will result in a shift in performance.”  In the development of momentum, the result of a series of changes is referred to as the momentum chain consisting of 6 key elements.

The momentum chain begins with a “precipitating event.” In last year’s Super Bowl this would be Harrison’s interception. This leads to a “change in cognition, (then) physiology, and (then) affect,” which varies from athlete to athlete depending on their personal perception of the game. In post-game interviews, Harrison recalled the moment after intercepting Warner’s pass: “I was just thinking that I had to do whatever I could to get to the other end zone and get seven.” Because of Harrison’s 100 yd interception return for a touchdown, there was a noticeable momentum shift.  In head-to-head competition, momentum must occur in both teams.  Steelers cornerback Bryant McFadden recognized Harrison’s touchdown as the “biggest play of the game” and how it “took the momentum from the [Cardinals].”

The Steelers went on to beat the Cardinals 27 – 23.

The second major pattern is demonstrated in the Projected Performance Model (Cornelius, Silva, Conroy, & Petersen, 1997) suggests that positive and negative momentum is the by-product, rather than the cause of changes in performance.   A response to a change in performance can be one of positive inhibition, where success leads to a loss of momentum; or negative facilitation, when failure produces an increase in positive momentum.   So, was the success of the Pacers in Game 5 a result of the Knick’s gaining a 14 point lead near the end of the 3rd quarter?  If failure begets success, the Pacers 23-6 run was an occurrence of negative facilitation; the poor performance defensively motivated an increased offensive effort.  If the increased and sustained offensive effort was most noticeable in Reggie’s fourth quarter heroics, then what is the role of the team in all of this?

There is a need for further exploration of psychological momentum and the effect it has on an individual versus a team.  It could be that the presence of momentum in one player must catalyze the momentum of all players in order to have a change in performance.  The speculative nature of such propositions clearly illustrates that psychological momentum is a difficult concept to measure and more research is needed to better demonstrate its existence and provide an understanding of the dynamics involved.

WIN FIRST OR GO HOME

It is difficult to think of your favorite sports team without thinking about some type of momentum swing – If you’re a Cubs fan you probably just thought of Steve Bartman, Pacers fans think Reggie Miller’s vs the Knicks, and Steelers fans how about Harrison’s 100yd return in last year’s Super Bowl. These three events dramatically changed the outcome of each competition. The Cubs went on to lose, the Pacers came back to win, the Steelers edged the Cards. But how much does psychological momentum actually affect the outcome of a series of competitions such as a best-of-7 game NBA Finals?

NBA FinalsThe Finals of the NBA are set up in a 2-3-2 format, meaning that the team with the better regular season record plays the first two and last two games in the best-of-7 series at home. Before the start of the Finals, sports analysts discuss statistical data on matchups, and likely outcomes based on who wins which games. The underlying subject of much of this data is how well teams cope with momentum swings. How does losing the first game at home affect the rest of the series, for instance? How does a team that goes on the road deal with losing its first two games, or winning its first game?

In the NBA Finals, when the home team wins their first game they have an 80.4% chance of winning the series. Let’s translate that: when the visiting team loses the first game the chance of them winning the series is 19.6%. For either a Home loss or a Road win in the first game, there is an equal 50% chance of winning the series (WhoWins, 2009). After that, it goes all higgly-piggly.

Contributions from Whitney Ostrander and Michael Tipton

Published bykatemckeon

You can try anything one time in Texas . . . after that we may shoot you. -Kate McKeon

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