Two bonafide noirs here--BODY AND SOUL and CHAMPION. Clearly RAGING BULL is close to where it belongs on the list, and certainly qualifies as neo-noir.
HARD TIMES is a very good film, but the list suffers from being American-centric. ROCCO AND HIS BROTHERS should be on here, and a writer named Kiki Evans (presumably a woman) might want to consider MILLION DOLLAR BABY, an excellent film that adds a needed gender dimension.
And a wonderful film with an interesting boxing subplot is VINCENT, FRANÇOIS, PAUL AND THE OTHERS (1974, Claude Sautet), with a quartet of superb French actors (Montand, Reggiani, Piccoli and Depardieu). It might be a stretch for such a list, but it's a great French counterpoint to ROCCO AND HIS BROTHERS.
Another film deserving of a place on this list: THE BOXER AND DEATH (1963), where a concentration camp prisoner is spared execution due to his skill in the ring, only to find that he's gone from the frying pan to the fire thanks to the escalating madness of the camp comandant. A brilliant, harrowing film from the Czech New Wave...