Ha ha! I.e., "it doesn't exist." So the RS win 10 in a row. You would say "they have momentum." Then they lose; you say, "they lost momentum." If it has no predictive value, then it's meaningless. There was no "momentum"; there was a series of wins, then losses. To prove 'momentum,' you really need to do a mathematical study to discover whether a team that has won 2/3/4/5 or however many in a row has a chance of winning the next one that is greater than that same team's winning% after winning fewer than that in a row or after a loss. I assume this has been done: it's not a difficult mathematical problem. But I need to see the results of that before I believe this. It's like announcers in a close football game exclaiming "Wow! The constant momentum shifts in this game are amazing!"