Press and citations
Figures on these pages may be quoted with attribution to Nijinn and a link to the page cited.
Citation format
Nijinn, "[page title]," data as of [timestamp shown on the page].
Example: Nijinn, "Maine Senate 2026," data as of Oct 16, 2026, 1:45 PM ET.
Describing the figures
The TruthIndex™ is a market-implied probability combining Polymarket and Kalshi. Suggested wording: "Prediction markets give Democrats a 64% chance of winning control of the Senate, according to Nijinn's TruthIndex™, which combines prices from Polymarket and Kalshi."
For gaps between venues: "Polymarket and Kalshi differ by [spread] points on [contest], according to Nijinn."
Live embeds
Every race page has an embed code under "Embed the live card". The embedded card shows the TruthIndex™, the rating, both leading candidates, the venue prices and a 30-day chart, updates on your page every 5 minutes and links to the race. It fits any width up to 680 pixels at a height of 400 pixels. An image version is offered beside it for pages that do not allow frames.
Data downloads
- contests.csv: every contest with TruthIndex™, venue prices, spread, 24-hour change, volume and venue status
- contests.json: the same data as JSON
Files refresh every 5 minutes.