| Cfp Years: | 2018–19 |
| Cfb Season: | 2018 |
| Semi Bowl1: | Cotton Bowl Classic |
| Semi Bowl2: | Orange Bowl |
| Semi Date: | December 29, 2018 |
| Champ Date: | January 7, 2019 |
| Team1: | Alabama |
| Team2: | Clemson |
| Team3: | Notre Dame |
| Team4: | Oklahoma |
| Champion: | Clemson |
| Cfp Ordinal: | 2nd |
| Overall Ordinal: | 3rd |
| Previous: | 2017–18 |
| Next: | 2019–20 |
The 2018–19 College Football Playoff was a single-elimination postseason tournament that determined the national champion of the 2018 NCAA Division I FBS football season. It was the fifth edition of the College Football Playoff (CFP) and involved the top four teams in the country as ranked by the College Football Playoff poll playing in two semifinals, with the winners of each advancing to the national championship game. Each participating team was the champion of its respective conference: No. 1 Alabama from the Southeastern Conference, No. 2 Clemson from the Atlantic Coast Conference, No. 3 Notre Dame, an FBS independent, and No. 4 Oklahoma from the Big 12 Conference.
The playoff bracket's semifinal games were held at the Cotton Bowl Classic and the Orange Bowl on December 29, 2018, part of the season's slate of bowl games. The Cotton Bowl semifinal saw Clemson defeat Notre Dame, 30–3, and the Orange Bowl semifinal saw Alabama defeat Oklahoma by eleven points. By virtue of their victories, Alabama and Clemson advanced to the national championship game, held on January 7 in Santa Clara, California. The title game was a rematch of the national championship games in 2016 and 2017 and the 2018 Sugar Bowl semifinal. In the championship game, Clemson defeated Alabama, 44–16, to win their second CFP national championship and their third national championship in school history.
The 2018–19 CFP selection committee was chaired by Oregon athletic director Rob Mullens. Its other members were former Virginia Tech head coach Frank Beamer, former The Arizona Republic reporter Paola Boivin, former Southern Miss head coach Jeff Bower, Oklahoma athletic director Joe Castiglione, former Central Michigan athletic director Herb Deromedi, former head coach Ken Hatfield, Robert Morris University president Christopher B. Howard, former head coach Bobby Johnson, former NFL player Ronnie Lott, Ohio State athletic director Gene Smith, Georgia Tech athletic director Todd Stansbury, and Florida athletic director Scott Stricklin.[1]
The season's first CFP rankings were released on October 30, 2018, with three conferences represented in the top six. No. 1 Alabama, No. 3 LSU, and No. 6 Georgia represented the Southeastern Conference (SEC), No. 2 Clemson represented the Atlantic Coast Conference (ACC), and No. 5 Michigan represented the Big Ten Conference. Also debuting in the top six was No. 4 Notre Dame, an FBS independent.[2] The following week of games saw No. 1 Alabama shut out No. 3 LSU,[3] dropping the Tigers to No. 7 and allowing Oklahoma to rise to No. 6.[4] The top eight ranked teams did not change over the next two rankings releases on November 13 and 20,[5] [6] the latter of which saw UCF ranked No. 9, making them the first Group of Five team to earn a CFP top ten ranking.[6] The final week of the regular season featured several games with implications for the penultimate rankings release; No. 8 Washington State fell to No. 16 Washington in the Apple Cup,[7] No. 10 Ohio State defeated rival No. 4 Michigan,[8] and No. 22 Texas A&M beat No. 7 LSU in a seven-overtime game that broke the FBS record for points scored in a game with 146.[9] Accordingly, the November 27 rankings dropped Michigan to No. 7, with Georgia and Oklahoma each moving up one spot and Ohio State jumping from No. 10 to No. 6. LSU and Washington State also dropped to Nos. 10 and 13, respectively.[10]
Each conference played their championship the following week. No. 11 Washington was first to win their conference with a defeat of No. 17 Utah in the Pac-12 Championship on November 30.[11] The next day, No. 1 Alabama defeated No. 4 Georgia in a rematch of the 2018 CFP national championship to win the SEC Championship.[12] No. 2 Clemson beat Pittsburgh to win the ACC Championship and No. 6 Ohio State defeated No. 21 Northwestern to win the Big Ten Championship, both by at least three possessions.[13] [14] In the Big 12 Championship, No. 5 Oklahoma defeated No. 14 Texas,[15] while No. 8 UCF beat Memphis to win the American Athletic Conference (AAC) Championship.[16]
The final CFP rankings were released on December 2, 2018. Alabama, Clemson, and Notre Dame remained in the top three spots, and Oklahoma rose to No. 4 following Georgia's loss to earn the final playoff spot. Alabama and Oklahoma were assigned to the Orange Bowl semifinal, and Clemson and Notre Dame were assigned to the Cotton Bowl Classic semifinal.[17] No. 5 Georgia was matched with No. 15 Texas in the Sugar Bowl,[18] while No. 6 Ohio State was assigned to play No. 9 Washington in the 2019 Rose Bowl.[19] In the final two New Year's Six games, No. 7 Michigan and No. 10 Florida were assigned to the Peach Bowl[20] and AAC champion No. 8 UCF was sent to the Fiesta Bowl to play No. 11 LSU.[21]
| Week 9 | Week 10 | Week 11 | Week 12 | Week 13 | Final | ||
|---|---|---|---|---|---|---|---|
| 1 | Alabama (8–0) | Alabama (9–0) | Alabama (10–0) | Alabama (11–0) | Alabama (12–0) | Alabama (13–0) | |
| 2 | Clemson (8–0) | Clemson (9–0) | Clemson (10–0) | Clemson (11–0) | Clemson (12–0) | Clemson (13–0) | |
| 3 | LSU (7–1) | Notre Dame (9–0) | Notre Dame (10–0) | Notre Dame (11–0) | Notre Dame (12–0) | Notre Dame (12–0) | |
| 4 | Notre Dame (8–0) | Michigan (8–1) | Michigan (9–1) | Michigan (10–1) | Georgia (11–1) | Oklahoma (12–1) | |
| 5 | Michigan (7–1) | Georgia (8–1) | Georgia (9–1) | Georgia (10–0) | Oklahoma (11–1) | Georgia (11–2) | |
| 6 | Georgia (7–1) | Oklahoma (8–1) | Oklahoma (9–1) | Georgia (10–1) | Ohio State (11–1) | Ohio State (12–1) |
See main article: 2018 Cotton Bowl Classic. The Cotton Bowl semifinal matched No. 2 Clemson and No. 3 Notre Dame in the teams' fourth meeting; it was their first matchup since 2015, and Clemson entered leading the series 2–1.[22]
See main article: 2018 Orange Bowl.
See main article: 2019 College Football Playoff National Championship.
Each semifinal game placed in the top six most-watched cable broadcasts of the 2018 calendar year, with Alabama–Oklahoma receiving 19.0 million viewers and Clemson–Notre Dame receiving 16.8 million. Both games' audiences peaked in the first half and declined as Alabama and Clemson each grew and maintained their respective leads.[23] The Orange Bowl earned a Nielsen rating of 10.4, just beating out the Cotton Bowl's 10.3 rating.[24] The national championship averaged 26.97 million viewers, more than either of Alabama and Clemson's prior CFP national championship meetings, putting it as the No. 7 most-watched cable broadcast of all time.[25] In spite of this, the championship game's Nielsen rating of 14.6 was the lowest of any national championship game since 2012.[26]