Both major parties are contesting 66% of the state legislative seats up for general election across the country this November. That is just shy of the 2018 record of 66.3%. Of the 6,137 total state legislative seats up for election, 2,085 (34%) are uncontested.
A seat has major party competition when candidates from both major parties are on the general election ballot. When only one major party is running for a seat, it has no major party competition and is effectively guaranteed to the major party candidate on the ballot.
Ballotpedia uses the level of major party competition to help determine the overall competitiveness of an election cycle. A larger number of seats without major party competition indicates fewer options on the ballot. A smaller number indicates more options.