TCU Horned Frogs play its first Big 12 conference home game Saturday when they take on Iowa State in Amon G. Carter Stadium.

Here are 15 key stats and figures about the game:

3- The number of touchdowns TCU’s defense has allowed in the first four games of the season.

3- The number of sacks TCU’s offensive line has allowed this season.

4- The number of picks Iowa State linebacker AJ Klein has returned for a touchdown in his career. Klein had a 87-yard return for a score against Texas Tech last week, putting him third all-time in NCAA history. Virginia’s Randy Veal (1991-94) and Miami of Ohio’s Dustin Cohen (1996-99) are the only other players to have more touchdown returns on interceptions.

5- The number of times TCU has gone 4-0 under coach Patterson’s tenure.

6- The number of wins against Top 25 programs Iowa State has faced since 1996. The Cyclones are 6-56 against Top 25 teams since joining the Big 12, with three of those wins coming from the last two seasons.

7.25- The average number of points TCU allows per game. The number is the second-best in the nation, only Alabama (7.0) gives up fewer points per game.

12- The number of consecutive wins TCU has coming into Saturday. TCU is the only team in the FBS with a double-digit win streak.

14- The average number of points Iowa State allows per game. The team ranks 17th in the nation for this category.

20- The number of players TCU has lost for the season due to injury, academic issues or arrests. Casey Pachall is not included in this statistic, as his suspension is indefinite, not for the season.

25- The number of times Cyclones punter Kirby Van Der Kamp has come out to punt this season. Fifteen of those punts were inside the opponent's 20 and nine inside the 10. 

30- The number of consecutive games TCU has scored at least 20 points. The Horned Frogs are tied with Oklahoma State for the longest active streak in this category.

73- The number of passing yards Iowa State had against the Texas Tech Red Raiders last week. The Cyclones had 189 yards of total offense in that game.

74- The number of passing yards TCU quarterback Trevone Boykin has this season. Boykin will be starting over the suspended Casey Pachall.

122- The number of yards Boykin has rushed for. He is only behind Waymon James and Matthew Tucker in this category and has an average of 10.2 yards per carry.

2005- The last time the Horned Frogs and the Cyclones played each other. TCU came away with a 27-24 win in the Houston Bowl. TCU is 3-0 all-time against Iowa State.