SBRR Race Weekend — WDCR MARRS Bracket Tracker

gaps: to next/to leader battle (≤5s) 🔥 show empty brackets

Import a session

Session

Qualifying sets the roster + initial brackets (Bracket Set 1). Races merge best laps: if a driver goes faster than their bracket's low bound, they break out and move up — never down. Re-importing the same session merges by fastest lap, so partial pastes are safe.

Live timing relay free — uses the same feed as the Race Monitor website

Relay URL

Merging into

only merge when the on-track session is the SBRR group (matched from group label / “Bracket”)

Start the relay first: node server.js (race ID comes from config.json) — the race ID is the number in the race-monitor.com/Live/Race/163681 URL. The relay speaks the live timing feed directly and this app polls it every 5 s; breakouts fire the feed and a toast.

Quick paste (no relay needed)

Merging into

Lines are matched to the roster by car number; the fastest time on each line counts. Breakouts trigger the feed and a toast.

Race Monitor API polling optional

API token

Race ID

Poll every (seconds)

Uses api.race-monitor.com/v2/Live/GetRace (paid token from Race Monitor). Rarely needed — the relay above gets the same data for free. If the browser blocks the cross-origin call, the running server.js also proxies it at localhost:8321 automatically.

Event

Series / year title

Event no.

Sanction

Date

Track

Location

Group label

Group label is auto-detected from the qualifying header (e.g. “Grp 3 Sprint Bracket Road Racing”) — the SBRR group number changes event to event.

Bracket bands

Name	Low (blank = open)	High (blank = open)

2-second bands from the event supplemental regs. Times as M:SS.mmm. Summit Point Main table is the default.

Roster

No.	Driver	SCCA ID	City ST	Region

Created automatically from qualifying import. SCCA ID / hometown / region are optional reference fields.