
Margins of victory in each geography are calculated as the winner's vote percentage minus the runner-up's vote percentage. Uncontested elections are treated as 100 percentage point margins. Tied elections have 0 percentage point margins. If an election is cancelled, postponed beyond the expiration date, or lacks certified results by expiration, it is excluded from the count. For multi-winner elections, each winner's margin is calculated relative to the next-highest candidate not elected.
For the purposes of this market, the specific party or candidate who wins each borough does not impact the margin of victory calculation.