Here it is, all the teams .500 or better and how they've fared against each other. W L Pct.
CHI 13 18 0.420
Atl 32 24 0.570
Fla 23 31 0.430
NYM 27 26 0.510
Phi 26 29 0.470
SD 12 5 0.710
StL 9 12 0.430
Was 24 22 0.520 The Cubs have the worst percentage among the teams, but several teams are very close, and the Cubs have played fewer games than many. San Diego is by far the best, but has played only 17 games against that competition, having not faced NY, Philly, or Washington. Based on this smaller sample, most good teams in the NL are around .500, with more slightly below. I'll do last year's numbers and see if they are like I remember. EDIT: ESPN doesn't have last year's grid anymore, rats.