In sports, strength of schedule (SOS) refers to the difficulty or ease of a team's/person's opponent as compared to other teams/persons. This is especially important if teams in a league do not play each other the same number of times.
The strength of schedule can be calculated in many ways. Such calculations are the basis of many of the various tie-breaking systems used in Swiss-system tournaments in chess and other tabletop games.
In the National Football League (NFL), the strength of schedule (SOS) is the combined record of all teams in a schedule, and the strength of victory (SOV) is the combined record of all teams that were beaten in that schedule. For example, opponents of the 2016 New England Patriots had a combined record of 111–142–3 (a win percentage of 0.439, the SOS), and Patriots' wins came against teams with a combined record of 93–129–2 (a win percentage of 0.420, the SOV).
Before the 2004 season, in the American college football Bowl Championship Series (BCS) [1] the SOS was calculated as shown at right, where OR is the opponents' record, while OOR is the opponents' opponents record. [2]
Other calculations include adding the opponent's power ratings and multiplying them by the number of games, or a modification by assigning weights (higher weights for "stronger" teams). [3]
Furthermore, several more factors may be added, such as the position of the team in the league, the strength of the team's division or conference, which games count in the formula and which do not (vital in the Bowl Championship Series), the locations of the games (see home team and home advantage) and others.
The BCS previously used the SOS in its formula to determine which teams will play in BCS Bowls, and more importantly, to the BCS National Championship Game. On the contrary, several leagues do not incorporate SOS directly into team standings. For most leagues, however, the team standings are typically affected by the overall strength of the conference the team plays in. The strength of the conference largely depends on the number of NFL players the conference produces. For instance, from 1992 to 2011, of 1,874 college athletes who entered the NFL, roughly 31% came from the SEC compared to only 0.64% from the MAC-EAST conference. [4] Therefore, playing a team in the SEC would likely increase a team's SOS as compared to playing a team in the MAC-EAST.
The NFL uses strength of schedule as a secondary tie-breaker for divisional rankings and playoff qualification, and as a primary tie-breaker for the NFL Draft. While the NFL has 32 teams, each team plays only 17 games against 14 other teams. [5] This limited scheduling makes strength of schedule a relevant metric for breaking ties, if primary tiebreakers such as head-to-head records do not break a tie.
Major League Baseball (MLB) has a more extreme way of scheduling since interleague games are done rarely[ needs update ], and were only introduced in 1997, plus the fact that interleague games do not exactly have concrete rules, save for the number of rest days and doubleheaders. [6]
In the National Basketball Association (NBA), the 30 teams are all guaranteed to face each other at least twice in an 82-game regular season, although intra-division games are more frequent (as much as four times) than inter-conference games (twice). In the National Hockey League, prior to 2008, some teams did not meet each other in a given year, and intra-division games are more frequent (six times) when compared to the NBA. A strong team in a weak division or conference is capable of bloating their record in order to have a better seeding in the playoffs.
In order to resolve differing strengths of schedule among teams, the playoffs are held after the season to determine which team will win the championship. The best teams from each conference qualify and are done at a variety of formats. The playoffs conclude with a championship game or series with the two teams representing their own conferences. The playoffs may also award a home advantage to a team with a superior record, regardless of their SOS, although the NFL holds its championship game at a predetermined site, while MLB awarded home-field advantage in the World Series to the team representing the league that won the All-Star Game from 2003 to 2016.
The concept of "strength of schedule" is alien to European domestic leagues since each league is not divided into divisions or conferences (the meaning of "conference" is different here, since even though several leagues may be in one conference, teams from the same conference do not play teams from other leagues of the same conference. See Football Conference for an example.), and every team plays every opponent twice (home and away) and as such, no playoffs are usually done to determine the winner; the team with the best record wins the championship outright, with several tiebreaking criteria to determine a team's overall standing.
In inter-European competition, no permanent divisions or groups are instituted although qualifying teams are drawn into different groups, where the top teams per group advance into the "knockout stage" which is almost similar to the concept of "playoffs" in North American sports. In association football, UEFA coefficients are used to determine seedings in tournaments organized by UEFA. Countries that had teams progress deeper into UEFA competitions have a higher coefficient. A higher coefficient means that teams do not have to meet teams that are as strong as them early in the tournament, while weaker teams have to face stronger teams in the early stages.
College football is gridiron football that is played by teams of amateur student-athletes at universities and colleges. It was through collegiate competition that gridiron football first gained popularity in the United States.
The playoffs, play-offs, postseason or finals of a sports league are a competition played after the regular season by the top competitors to determine the league champion or a similar accolade. Depending on the league, the playoffs may be either a single game, a series of games, or a tournament, and may use a single-elimination system or one of several other different playoff formats. Playoff, in regard to international fixtures, is to qualify or progress to the next round of a competition or tournament.
A tournament is a competition involving at least three competitors, all participating in a sport or game. More specifically, the term may be used in either of two overlapping senses:
The Bowl Championship Series (BCS) was a selection system that created four or five bowl game match-ups involving eight or ten of the top ranked teams in the NCAA Division I Football Bowl Subdivision (FBS) of American college football, including an opportunity for the top two teams to compete in the BCS National Championship Game. The system was in place for the 1998 through 2013 seasons and in 2014 was replaced by the College Football Playoff.
In North America, a bowl game, or simply bowl, is one of a number of postseason college football games that are primarily played by teams belonging to the NCAA's Division I Football Bowl Subdivision (FBS). For most of its history, the Division I Bowl Subdivision had avoided using a playoff tournament to determine an annual national champion, which was instead traditionally determined by a vote of sports writers and other non-players. In place of such a playoff, various cities across the United States developed their own regional festivals featuring postseason college football games. Prior to 2002, bowl game statistics were not included in players' career totals. Despite attempts to establish a permanent system to determine the FBS national champion on the field, various bowl games continue to be held because of the vested economic interests entrenched in them.
Throughout its history, the National Football League (NFL) and other rival American football leagues have used several different formats to determine their league champions, including a period of inter-league matchups to determine a true national champion.
A sports league is a group of individual athletes, sports teams or clubs who form a league to compete against each other and gain points in a specific sport. At its simplest, it may be a local group of amateur athletes who form teams among themselves and compete periodically, at its most complex, it can be an international professional league making large amounts of money and involving dozens of teams and thousands of players.
In an organized sports league, a typical season is the portion of one year in which regulated games of the sport are in session: for example, in Major League Baseball the season lasts approximately from the last week of March to the last week of September. In other team sports, like association football or basketball, it is generally from August or September to May although in some countries – such as Northern Europe or East Asia – the season starts in the spring and finishes in autumn, mainly due to weather conditions encountered during the winter.
The National Football League (NFL) playoffs is the single-elimination tournament to determine the annual league champion. The four-round tournament is held after the league's regular season. Since the 2020 season, seven teams from each of the league's two conferences qualify for the playoffs based on regular season winning percentage, with a tie-breaking procedure if required. The top team in each conference receives a first-round bye, automatically advancing to the next round. The tournament culminates in the Super Bowl, the league's championship game, competed between teams from each conference.
The Major League Baseball (MLB) season schedule consists of 162 games for each of the 30 teams in the American League (AL) and National League (NL), played over approximately six months – a total of 2,430 games, plus the postseason. The regular season runs from late March/early April to late September/early October, followed by the postseason which can run to early November. The season begins with the official Opening Day, and, as of 2018, runs 26½ weeks through the last Sunday of September or first Sunday of October. One or more International Opener games may be scheduled outside the United States or Canada before the official Opening Day. It is possible for a given team to play a maximum of 22 games in the postseason in a given year, provided the team is a wild card and advances to each of the Division Series, Championship Series, and World Series with each series going the distance.
A sports rating system is a system that analyzes the results of sports competitions to provide ratings for each team or player. Common systems include polls of expert voters, crowdsourcing non-expert voters, betting markets, and computer systems. Ratings, or power ratings, are numerical representations of competitive strength, often directly comparable so that the game outcome between any two teams can be predicted. Rankings, or power rankings, can be directly provided, or can be derived by sorting each team's ratings and assigning an ordinal rank to each team, so that the highest rated team earns the #1 rank. Rating systems provide an alternative to traditional sports standings which are based on win–loss–tie ratios.
The SEC Championship Game is an annual American football game that has determined the Southeastern Conference's season champion since 1992. For its first 32 seasons, the championship game pitted the SEC East Division regular season champion against the West Division regular season champion. With the SEC eliminating football divisions after the 2023 season, future games will feature the top two teams in the conference standings. Since 2007, the game has typically been played on the first Saturday of December, and the game has been held in Atlanta since 1994, first at the Georgia Dome, and at Mercedes-Benz Stadium since 2017.
A wild card is a tournament or playoff berth awarded to an individual or team that fails to qualify in the normal way; for example, by having a high ranking or winning a qualifying stage. In some events, wildcards are chosen freely by the organizers. Other events have fixed rules. Some North American professional sports leagues compare the records of teams which did not qualify directly by winning a division or conference.
In a group tournament, unlike a knockout tournament, there is no scheduled decisive final match. Instead, all the competitors are ranked by examining the results of all the matches played in the tournament. Typically, points are awarded for each match, with competitors ranked based either on total number of points or average points per match. A special type of group tournament is the Round-robin tournament, in which each player plays against every other player.
A one-game playoff, sometimes known as a pennant playoff, tiebreaker game or knockout game, is a tiebreaker in certain sports—usually but not always professional—to determine which of two teams, tied in the final standings, will qualify for a post-season tournament. Such a playoff is either a single game or a short series of games.
In American college football, the 2006 BCS computer rankings are a part of the Bowl Championship Series (BCS) formula that determines who plays in the BCS National Championship Game as well as several other bowl games. Each computer system was developed using different methods which attempts to rank the teams' performance. For 2006, the highest and lowest rankings for a team are dropped and the remaining four rankings are summed. A team ranked #1 by a computer system is given 25 points, #2 is given 24 points and so forth. The summed values are then divided by 100. The values are then ranked by percentage. This percentage ranking is then averaged with the Coaches Poll and Harris Poll average rankings, each receiving equal weight, and the results become the BCS Rankings.
In American college football, the 2007 BCS computer rankings are a part of the Bowl Championship Series (BCS) formula that determines who plays in the BCS National Championship Game as well as several other bowl games. Each computer system was developed using different methods which attempts to rank the teams' performance. For 2007, the highest and lowest rankings for a team are dropped and the remaining four rankings are summed. A team ranked #1 by a computer system is given 25 points, #2 is given 24 points and so forth. The summed values are then divided by 100. The values are then ranked by percentage. This percentage ranking is then averaged with the Coaches Poll and Harris Poll average rankings, each receiving equal weight, and the results become the BCS Rankings.
The College Football Playoff (CFP) is an annual postseason knockout invitational tournament to determine a national champion for the National Collegiate Athletic Association (NCAA) Division I Football Bowl Subdivision (FBS), the highest level of college football competition in the United States. It culminates in the College Football Playoff National Championship game. The inaugural tournament was held at the end of the 2014 NCAA Division I FBS football season under a four-team format. The CFP expands to include twelve teams for the 2024 season.
The 2013–14 NCAA football bowl games were a series of college football bowl games. They concluded the 2013 NCAA Division I FBS football season, and included 35 team-competitive games and three all-star games. The games began on Saturday December 21, 2013 and, aside from the all-star games, ended with the 2014 BCS National Championship at the Rose Bowl in Pasadena that was played on January 6, 2014.
The New Year's Six, sometimes abbreviated as NY6, are the following NCAA Division I Football Bowl Subdivision (FBS) bowl games: the Rose Bowl, Sugar Bowl, Orange Bowl, Cotton Bowl, Peach Bowl, and Fiesta Bowl. These games are played annually on or around New Year's Day and represent six of the ten oldest bowl games played at the FBS level.