double-header
Officials estimate this weekend's racing triple-header will draw 400,000 fans to the track.
The exhibit is part of a triple-header in the museum for Black History Month.
They were part of the first boxing tripleheader to be televised live.
The gig was a triple-header.

SMART Vocabulary: related words and phrases

Specific sporting events
bowl
classic
El Clásico
FA Cup
Highland Games
Madison
modern pentathlon
Olympiad
Olympic
Paralympian
Paralympic
pentathlon
roller derby
Super Bowl
swimathon
the IOC
twin bill
vert
walkathon
Wimbledon

You can also find related words, phrases, and synonyms in the topics:

Spectacles & performances