Keep your hands in frame
The detector tracks each wrist independently. As long as your hands stay inside the camera view, you can sit, stand, or hold the phone in one hand — anything that moves the other hand counts.
20 seconds. Your camera. Your reps. Climb the leaderboard.
Works on desktop & most phones. Best results in good light.
Tap start. Your browser asks for camera access. Frames stay on your device.
Sit or stand — just make sure your hands are visible. Drop your arms to start.
A 3-second countdown then go. Move your arms up and down as fast as you can.
Result drops at the buzzer. Submit a name, take the leaderboard.
The 67 speed game is a free, browser-based arm speed test built around the viral 6-7 hand-motion trend. The rules are simple: move your arms up and down as fast as you can — sitting or standing, full pumps or chest-level flaps, the counter tracks any motion of your hands. A pose-detection model running locally in SixSeven counts every rep and posts your 67 score to the global leaderboard.
The 67 speed run lasts exactly 20 seconds. There is nothing to download, no account to make, and no payment screen. Open the page, allow camera access, and play. Your video never leaves the device — every frame of computer vision happens client-side, in real time.
Anyone with a webcam and 30 seconds. Streamers use SixSeven as a quick on-stream challenge with their chat. Friends use it as a party game. Fitness fans use the 67 speed test as a 20-second warm-up sprint that gives a number at the end. Kids who saw the 6-7 trend on short-form video use it to settle whose arms are actually faster.
The page loads a small pose-estimation neural network straight to your device. Every video frame, the model tracks the position of your wrists. A rep is registered each time a wrist completes a clear up-then-down motion — with smoothing and a minimum interval so ordinary hand jitter does not get counted. Each wrist counts independently, so alternating arms scores twice as fast as moving them in sync.
Within the limits of camera-based pose tracking, very. Good lighting, contrasting clothing, and keeping your hands inside the frame are the three biggest factors. If a wrist drops out of view, that hand pauses until the model picks it up again — so the 67 leaderboard stays clean.
Small adjustments to camera setup and motion form can add 20–30% to your final number. These are the ones that make the biggest difference.
The detector tracks each wrist independently. As long as your hands stay inside the camera view, you can sit, stand, or hold the phone in one hand — anything that moves the other hand counts.
A bright lamp pointing at you (and not directly into the camera) makes pose tracking dramatically more reliable. Backlight from a window is the worst case.
Dark long sleeves on a light wall, or a light shirt on a dark wall — the higher the contrast between you and your background, the cleaner the keypoints.
The detector ignores tiny shakes. Each rep needs a clear up-then-down motion. Crisp, decisive direction changes register; vibrating in place does not.
A consistent 1-2-1-2 tempo will out-score 5 seconds of frantic flailing followed by a recovery break. The tempo is your throttle.
Built-in laptop cameras drop frames under load. If you have a USB webcam, plug it in. Close other tabs while you play.
The 67 speed game is a free, browser-based arm speed test built on the viral 6-7 hand-motion trend. You move your arms up and down as fast as you can for 20 seconds — sitting or standing, full pumps or chest-level flaps, anything that moves your hands counts. A pose model running on your device counts every rep, gives you your 67 score, and ranks you on the global 67 leaderboard.
Open SixSeven in a modern browser, allow camera access, point the camera at your hands, and tap start. There is no install, no signup, and no payment screen — every play is unlimited and free.
Your browser loads a small pose-estimation neural network on the fly. Every video frame, the model tracks your wrists. A rep is registered each time a wrist completes a clear up-then-down motion — with smoothing and a minimum interval so micro-jitter does not double-count. Each wrist is tracked independently, so alternating arms scores twice as fast as moving them in sync.
No. The 67 speed challenge runs entirely in your browser. There is no app, no signup, and no extension. Just open the page and play.
Nowhere. Pose detection runs entirely in your browser using on-device computer vision. Only the final score and the rep timeline are sent to our server when you submit a leaderboard entry. Video and images never leave your device.
Your 67 score is the number of arm reps the counter validates during the 20-second window. A rep is one clear up-then-down motion of either wrist. Each wrist counts independently, so alternating arms doubles your rate. Micro-jitter and stationary hands do not count.
The world record on the SixSeven leaderboard updates live. Top players hit several hundred reps in 20 seconds. Submissions are signed server-side and validated against a plausibility cap, so only honest scores reach the leaderboard.
No. Each session is signed with a server-issued token. The server validates the rep timeline, monotonic timestamps, and a per-challenge maximum reps-per-second. Implausibly fast, out-of-order, or empty timelines are rejected automatically.
Yes. iOS Safari and Android Chrome both support pose tracking with the front camera. Prop the phone up so your whole upper body is in the frame for best results.
The lite pose model is fast on most hardware, but cheap webcams and older laptops can drop frames. Close other tabs, move into bright light, and try a wired webcam if you have one.
Consistent rhythm and clean reversals beat random flailing. Alternating arms (left-right-left-right) scores twice as fast as moving both in sync. The detector ignores tiny jitters, so a clear, decisive up-then-down is what scores.
Not yet. The whole challenge is built around real-time pose tracking. We may add motion-free modes in the future.
Yes — completely. There is no paywall, no premium tier, no ads asking for payment. Play and submit to the leaderboard as many times as you want.