I think our rpi will go up tomorrow even if we lose.
Yep, win or lose, I think ISU's RPI is guarenteed to go up. And I see a lot of misconceptions about RPI in this thread. RPI doesn't care about who you beat and who you lost to, it only cares about your winning percentage and then how tough your schedule is. The one caveat is that the winning percentage gives a bonus to road wins and an extra penalty to home losses.
Other teams' conference games will have no effect on ISU's RPI ranking at the end of the year. Each win for a team that you play twice is exactly cancelled out by the loss of a team you played twice. The only thing that really matters is Iowa State's record and then the record of non-conference foes. But there will be the added noise of the current RPI ratings including say TCU and Texas Tech twice but KU and OSU only once until it all evens out at the end of the season.