Reference

final results — status tells you if it completed naturally or was cut short.

Poll

• [[[event.title]]] — Poll question
• [[[event.status]]] — "completed", "terminated", or "archived"
• [[[event.started_at]]] — When the poll opened
• [[[event.ended_at]]] — When the poll ended

Final Choices

• [[[event.choices.count]]] — How many choices
• [[[event.choices.total_votes]]] — Final total votes across all choices
• [[[event.choices.0.title]]] — First choice title
• [[[event.choices.0.votes]]] — First choice final vote count
• [[[event.choices.1.title]]] — Second choice title (also .2 to .4)
• [[[event.choices.1.votes]]] — Second choice final votes

example:

[[[if:event.status = completed]]]
  <div class="poll-done">Poll ended: [[[event.title]]]</div>
[[[elseif:event.status = terminated]]]
  <div class="poll-cut">Poll cut short: [[[event.title]]]</div>
[[[endif]]]

note: maps to the Twitch EventSub event channel.poll.end.