A 45 s buffer fits every rally
Average ATP rally length on hard court is around 4–5 seconds; even long baseline exchanges rarely break 30. The free 45 s buffer gives you headroom plus the celebration. No need for Pro for the racquet use case.
Use case · Updated
ReplayR for tennis and padel players
TL;DR. A tennis or padel rally averages 4–5 seconds. The 45-second free buffer captures every rally with room to spare. Mount the phone behind the baseline (tennis) or on the back fence (padel), tap your Wear OS watch between points, and walk off court with a clean set of saved rallies — not a 90-minute MP4 to scrub. On-device only, no cloud, no account.
Why racquet players pick ReplayR
Save from the wrist between points
Pair a Wear OS watch (Tile or Complication). Between points — towel down, tap your wrist, save. Phone stays on the mount; recording resumes in about a second.
Padel cage friendly
Padel courts are 20×10 m enclosed. Clamp the phone to the back fence corner — landscape, lens facing diagonally — and a single mount captures all four players and most of the glass walls.
No cloud, no account
Footage stays on the phone. Useful at clubs where members object to video, and useful for not handing your match data to a third party.
Court setup
Tennis
- Mount: tripod 2–3 m behind your baseline, lens at chest height, landscape.
- Buffer: 45 s (free) covers any rally + celebration.
- Resolution: 480p (free) is enough for serve / footwork review; 1080p (Pro) if you want to slow-mo a wrist position.
- Save: watch tap between points. Open-palm gesture (Pro) if you're hitting against a wall solo.
- Stealth mode on for full-set sessions over an hour.
Padel
- Mount: phone clamp on the back fence corner, landscape, diagonal framing across the 20×10 m court.
- Buffer: 45 or 90 s — padel rallies are longer than tennis but rarely past 30 s.
- Resolution: 1080p — useful for reviewing glass plays at speed.
- Save: watch tap as you walk to serve.
- Plug into a power bank for full-session play.
What to save, what to skip
Save
- Break-point and set-point rallies
- Rallies where you executed a tactic deliberately
- Errors you want to dissect — bad footwork, wrong shot selection
- Padel: glass plays and bandeja / víbora exchanges worth analyzing
- Serve sequences across a full game
Skip
- Warm-up rallies
- Aces and unreturned serves (already short, no rally to study)
- Long tactical discussions between points
- Anything you wouldn't watch back tonight
Reference data
Tennis rally length is well-documented in the analytics literature — see for example ITF research on the anatomy of a tennis point, which establishes the 4–5 second average for hard-court ATP-level play. Padel rally durations skew slightly longer because of glass-wall continuations but rarely exceed the 45 s buffer.
FAQ
What buffer length should I use for tennis?
45 s covers nearly every rally — average ATP rally is 4–5 s, longest are typically under 30. Use 90 s if you want celebration and coach reaction in frame.
Can I save without leaving the baseline?
Yes. Pair a Wear OS watch and tap the Tile or Complication. Phone stays mounted, save in 200–500 ms, recording resumes in ~1 s.
Where do I mount the phone for padel?
Back fence / cage corner, landscape, diagonal across the 20×10 m court. One corner mount captures all four players.
Will the line judge object to filming?
Most clubs are fine with personal training video on your own court. Always check your club's rules and your opponent's preference before mounting.