doubleheader
nounUK /ˌdʌbəlˈhedə/
US /ˌdʌbəlˈhɛdər/
Two games played one after the other on the same day.
We stayed at the ballpark all afternoon to watch the doubleheader.
OTHER MEANINGS
2. A train pulled by two locomotives at the same time.
The freight doubleheader climbed the mountain with two engines.
3. Two events or performances held one after the other.
The theater hosted a doubleheader with a comedy and a musical.
4. A pair of similar things presented together.
The science fair was a doubleheader of robotics and chemistry projects.