their RPI goes up... regardless of how "bad" those teams are. Here is an example formula from Wikipedia (not a credible source, I know... but this illustrates how it works).
RPI = (WP * 0.25) + (OWP * 0.50) + (OOWP * 0.25)
where WP is Winning Percentage, OWP is Opponents' Winning Percentage and OOWP is Opponents' Opponents' Winning Percentage.
The WP is calculated by taking a team's wins divided by the number of games it has played (i.e. wins plus losses).
So as USM wins, their RPI increases. As their opponents win games (regardless of how "strong" they are... like how the BCS formula takes into account Strength of schedule), that part of the formula increases
(this is the part with the most weight... which for USM, holds true). As the opponents of their opponents win, that increases their RPI even further. USM has beat teams that are winning, albeit in ****** conferences. Keep in mind, RPI does not consider "how good" teams are... so a win over a top 5 RPI team weigh the same amount as a win over a bottom 300 team. Also, WP takes into account road wins, home wins, and neutral court wins (since they weigh differently from one another).
Don't put so much stock in RPI, because as the season goes on, the RPI will begin to really take shape... and it is also not the only thing the committee considers in the selection.... like I said, it is only a statistical indicator... and does not work the same as BCS rankings... which is probably what you are trying to compare it to.<div><p style="margin-top: 0.4em; margin-right: 0px; margin-bottom: 0.5em; margin-left: 0px; background-color: rgb(255, 255, 255); "></p></div> <div>
</div><div>ETA: RPI takes into account how much your team wins and how much your opponents win, not necessarily SOS... that's what I meant when I said RPI does not take into account how "good" teams are. </div>