number of teams (at peak)

20 triples

GPTKB property

Subject	Object
gptkb:National_Professional_Soccer_League_(1984–2001)	15
gptkb:Major_Indoor_Soccer_League_(1978–1992)	14
gptkb:Negro_National_League_(second_incarnation)	8
gptkb:American_Basketball_League_(1925–1931)	11
gptkb:Women's_Professional_Soccer_(WPS)	7
gptkb:Premier_Basketball_League	13
gptkb:North_Eastern_Hockey_League	6
gptkb:American_Association_(baseball)	8
gptkb:United_Football_League_(Philippines)	12
gptkb:USL_W-League_(1995–2015)	over 30
gptkb:International_Hockey_League_(IHL)	19
gptkb:National_Indoor_Football_League	24
gptkb:Continental_Indoor_Football_League	14
gptkb:Arena_Football_League_(original)	19
gptkb:Conference_USA_(former)	14
gptkb:Ultimate_Indoor_Football_League	16
gptkb:Southern_Indoor_Football_League	9
gptkb:American_Professional_Soccer_League	22
gptkb:American_Arena_League	13
gptkb:World_Hockey_Association	14