Thomas Callaghan, Peter J. Mucha and Mason A. Porter, The Bowl Championship Series: A Mathematical Review, Notices Amer. Math. Soc. 51, 887-893 (2004).
Thomas Callaghan, Peter J. Mucha and Mason A. Porter, Random Walker Ranking for NCAA Division I-A Football, to appear in Amer. Math. Monthly.
Keener's old SIREV paper. I'll look this up later.
P. Kvam and J.S. Sokol, A Logistic Regression/Markov Chain Model for NCAA Basketball, to appear in Naval Research Logistics.
P. K. Newton and K. Aslam, Monte Carlo Tennis, SIAM Rev., 48(4), 722-742 (2006).
J. Park and M. E. J. Newman, A network-based ranking system for US college football, J. Stat. Mech., P10014 (2005).
J. Park and M. E. J. Newman, Network-based Ranking System for U.S. College Football, from the International Workshop and Conference on Network Science (2006).
Park's longer paper (on the arxiv in 05). I'm too lazy to look this up right now.
E. Ben-Naim and N. W. Hengartner, How to Choose a Champion, arXiv: physics/0612217