How to run an F1 watch party on YouTube and Twitch
Highlights, qualifying reruns, reaction streams and the long race weekend videos. One room, everyone on the same second.
Not every race weekend is watched live. Highlights arrive on YouTube within hours, reaction streams run for the rest of the evening and half a friend group catches up on Monday.
YouTube and Twitch
9 watching
CoViewer is a free extension made by BoxBoxd. It holds every picture on the same second and puts a chat beside the video. It never rebroadcasts anything, so each person watches on their own subscription.
The setup, six steps
Add CoViewer to Chrome
It is free and it takes one click from the Chrome Web Store. There is no account to create, no card, nothing to configure. The extension does nothing until a race is on your screen.
Open the race on the broadcast you already pay for
F1 TV, Canal+, Sky Sports, DAZN, ESPN, Viaplay, Apple TV, RTL, Kayo, Fox Sports, Sky Italia, NOW, WOW, YouTube or Twitch. Everyone in the room keeps their own subscription and their own commentary language. Nothing is ever rebroadcast.
Let it recognise the session
CoViewer reads the page title and the player to work out which Grand Prix and which session you opened. When it is sure, the launcher appears at the edge of the video. If you are watching something else, it stays quiet.
Create the room and copy the link
One click creates the party and gives you a short link. Send it in the group chat, by message or by mail. The room is yours, you are the host and playback follows you.
Your friends open the link
The link explains the two steps, adding the extension and opening their own broadcast. They join with the same code and appear in the room within seconds, wherever they are and whoever they watch with.
Watch the race together
The sidebar opens next to the video with the chat, the reactions, the live standings and the room. At the flag you rate the race and pick your driver of the day and it posts to your BoxBoxd profile.
The detail that counts here
This is where the tools built for film catalogues stop entirely, because YouTube and Twitch are outside what they cover. CoViewer treats them like any other player and syncs the timeline the same way.
How does the sync hold?
The host sends the playback position to the room every three seconds. Each viewer compares that position to their own player and corrects the difference quietly.
A gap under two seconds is closed by nudging the playback speed by five percent for a moment, so nobody sees a jump. Past two seconds the player seeks straight to the right place. On a live broadcast only play and pause travel, because a live stream carries its own clock.
Ad breaks are handled too. When one person hits an ad break, the room waits and resumes when everyone is back on the race. That single detail is what usually breaks a watch party built for films.
Frequently asked questions
Can you watch F1 with friends on YouTube and Twitch?
Yes. Each person opens the race on their own YouTube and Twitch account, one person creates the room and shares the link. The CoViewer extension keeps the players in sync.
Do we all need the same subscription?
No. Everyone watches on the service they already pay for, in their own language. Only the playback position travels between browsers.
Is there a limit on how many people can join?
No and the extension and rooms are free.
CoViewer is free, it takes about a minute to set up and it runs on the broadcast you already pay for.
CoViewer is made by BoxBoxd, the motorsport social network where fans rate every Grand Prix. The extension keeps playback in sync between people who each watch on their own subscription. It never rebroadcasts a stream. Questions at partnerships@boxboxd.fun.