A grandstand is the fixed, roofed seating that faces a fair's main arena or track. Crowds sit there for pulling contests, demolition derbies and harness racing. Judging in an exhibition hall or livestock barn is a walk-through event and needs no seat. The grandstand is where the ticketed or reserved-seat versions of a fair's contests usually happen. Smaller one-day town and Grange fairs often run their contests at ground level, with spectators along a rope line.
Grandstand
The roofed seating that faces a fair's arena or track.
See it at these Massachusetts fairs

Shown first
AgriculturalFamilySeasonal
Topsfield Fair
Eleven days of livestock, rides, and giant pumpkins.
Oct 2–12Topsfield
EndedAgriculturalFamilySeasonal
Marshfield Fair
A South Shore tradition since 1867. Midway, demo derby, and agricultural exhibits.
Aug 21–30Marshfield
EndedAgriculturalSeasonalFamily
Three County Fair
A Northampton fair dating to 1818, with rodeo and livestock shows.
Date not confirmedNorthampton
EndedAgriculturalFamilySeasonal
Franklin County Fair
A Pioneer Valley fair since 1848 with the Roundhouse exhibit hall.
Sep 10–13Greenfield