Pick a live match to auto-fill everything, tweak teams if needed, then copy the overlay URL into an OBS Browser Source.
Leave these empty for live updates. Picking a match only needs the ESPN Event ID — the scoreboard pulls teams, score and clock live. Anything you set here overrides the live data and won't auto-update.
In OBS: Sources → Browser → paste this URL → Width 1280, Height 225 → enable “Allow transparency”.