The Vance Aquatics Club Barracudas didn’t win a Durham Summer Swim League dual meet this year (or last year, for that matter), but coaches Wendi and Chris Leas bring a group of improving swimmers into the league championship meet today and Saturday at the Koury Natatorium, in the shadow of the Smith Center at UNC-Chapel Hill. The Barracudas will get to measure themselves individually against every swimmer in the league. The children 8 and under start at 6 p.m. today. The rest swim Saturday.