The semifinal game between LSU and Oklahoma features the second-highest spread and over/under in College Football Playoff history.
 
LSU is currently a 12.5-point favorite against the Sooners, and the game's total is 75 points.
 
According to closing odds from SportsBetting.ag, there has only been one higher spread and one higher total in CFP history. The complete list is below.
 
The other CFP semifinal, featuring Ohio State and Clemson, shows the Tigers as 2-point favorites over the Buckeyes with an over/under of 63.5.
 
The combined current total of both games is the highest for any two CFP semis in the same year.
 
Here are the championship odds:
LSU +125
Clemson +225
Ohio State +250
Oklahoma +1000
 
Current bowl odds: https://www.sportsbetting.ag/sportsbook/football/ncaa
 
(semifinal games are in bold/italics)
 
List of CFP Spreads (sorted by biggest spread)
2018/19 Orange Bowl: Alabama (-14.5) vs. Oklahoma
2019/20 Peach Bowl: LSU (-12.5) vs. Oklahoma
2016/17 Peach Bowl: Alabama (-12.5) vs. Washington
2018/19 Cotton Bowl: Clemson (-10.5) vs. Notre Dame
2015/16 Cotton Bowl: Alabama (-10) vs. Michigan State
2014/15 Sugar Bowl: Alabama (-7.5) vs. Ohio State
2014/15 Rose Bowl: Oregon (-7.5) vs. Florida State
2016/17 CFP NCG: Alabama (-6.5) vs. Clemson
2015/16 CFP NCG: Alabama (-6) vs. Clemson
2014/15 CFP NCG: Oregon (-6) vs. Ohio State
2018/19 CFP NCG: Alabama (-5) vs. Clemson
2017/18 CFP NCG: Alabama (-3.5) vs. Georgia
2017/18 Sugar Bowl: Alabama (-3.5) vs. Clemson  
2015/16 Orange Bowl: Oklahoma (-3.5) vs. Clemson
2017/18 Rose Bowl: Georgia (-2.5) vs. Oklahoma
2019/20 Fiesta Bowl: Clemson (-2) vs. Ohio State
2016/17 Fiesta Bowl: Ohio State (-1) vs. Clemson
 
- Favorites are 7-3 straight-up and 6-4 ATS in semifinal history
- Favorites are 8-7 straight-up and 6-9 ATS in CFP history
 
List of CFP Totals (sorted by highest totals)
2018/19 Orange Bowl: Alabama vs. Oregon (80.5)
2019/20 Peach Bowl: LSU vs. Oklahoma (75)
2014/15 Rose Bowl: Oregon vs. Florida State (74)
2014/15 CFP NCG: Oregon vs. Ohio State (72.5)
2019/20 Fiesta Bowl: Clemson vs. Ohio State (63.5)
2017/18 Rose Bowl: Oklahoma vs. Georgia (62.5)
2015/16 Orange Bowl: Clemson vs. Oklahoma (61.5)
2014/15 Sugar Bowl: Alabama vs. Ohio State (58)
2018/19 Cotton Bowl: Clemson vs. Notre Dame (58)
2018/19 CFP NCG: Clemson vs. Alabama (57.5)
2016/17 Fiesta Bowl: Ohio State vs. Clemson (56)
2016/17 CFP NCG: Alabama vs. Clemson (51)
2016/17 CFP NCG: Alabama vs. Washington (50.5)
2015/16 CFP NCG: Alabama vs. Clemson (50.5)
2017/18 Sugar Bowl: Alabama vs. Clemson (46.5)
2017/18 CFP NCG: Alabama vs. Georgia (45.5)
2015/16 Cotton Bowl: Alabama vs. Michigan State (45.5)  
 
- Overs are 8-7 in CFP history
- Overs are 4-6 in CFP semifinal history
 
List of CFP Upsets (sorted by biggest upset)
2014/15 Sugar Bowl: Ohio State (+7.5) over Alabama
2016/17 CFP NCG: Clemson (+6.5) over Alabama
2014/15 CFP NCG: Ohio State (+6) vs. Oregon
2018/19 CFP NCG: Clemson (+5) over Alabama
2015/16 Orange Bowl: Clemson (+3.5) over Oklahoma
2016/17 Fiesta Bowl: Clemson (+1) over Ohio State
 
- The CFP has had six teams reach it with undefeated records. Those teams are 4-2 straight-up and 3-3 against the spread (ATS) in semifinals and 3-4 straight-up and 4-3 ATS in the playoff overall. Clemson is the only undefeated team that has gone on to win the National Championship in the CFP era.
 
All-Time CFP Records
LSU: 0-0 SU / 0-0 ATS
Ohio State: 2-1 SU / 2-1 ATS
Clemson: 5-2 SU / 6-1 ATS
Oklahoma: 0-3 SU / 0-3 ATS
 
- Oklahoma is trying to become the first team from the Big 12 to ever win a CFP game. The Big 12 is the only Power Five conference that has yet to win a CFP game.
 
- LSU is 1-0 SU and ATS against Oklahoma, winning the 2004 Sugar Bowl (LSU 21-14, LSU +6)
 
- Clemson is 2-0 SU and ATS against Ohio State, winning the 2016 CFP Semifinal (Clemson 31-0, Clemson +1.5) and the 2014 Orange Bowl (Clemson 40-35, Clemson +2.5)