A coach's guide to using AceSense between lessons

If you coach amateur or junior players, AceSense gives you an async homework workflow between lessons. The 4-step framework, plus where it doesn't replace you.

You're a tennis coach. You see your players for an hour, maybe twice a week. They walk off court, they go play tournaments and practice on their own, and by the next lesson half your previous-session corrections have drifted. The fix everyone reaches for is more video — but more video is a chore for the coach (clipping, sending, marking up) and the player rarely watches it carefully without a structured prompt.

This post is the workflow we recommend if you coach NTRP 3.0–4.5 adults or junior tournament players. It's an async between-lessons homework loop. AceSense does the heavy lifting; the structure makes it work.

TL;DR

A four-step weekly loop:

  1. Player picks one match per week to upload to AceSense.
  2. You send a one-paragraph homework prompt before they review.
  3. Player reviews the report against your prompt and brings three time-coded clips to the next lesson.
  4. The lesson stays for what only you can do.

You do zero clipping. The player does the watching. The data carries between sessions.

When this workflow earns its keep

Honest scoping. This page is worth your time if:

  • You coach U12–U18 ranked juniors or adult tournament players at NTRP 3.0–4.5.
  • Your players (or their parents) pay for one to three lessons a week plus practice and tournament time.
  • You don't have facility-grade hardware (SmartCourt, PlaySight) at every court you teach on.
  • You're constantly fielding "can you look at my match from Saturday?" and you don't have time to clip and review.

Skip this page if you coach exclusively academy players with on-site video staff, or if your students are below the level where stroke-quality scoring is reliable (typically green-ball-and-up).

The Talk Tennis "Coaches/Parents - match tracking & statistics app?" thread is the recurring forum version of this question. Read it for the live community version of the conversation.

The four-step loop

1. Player picks one match per week

Junior tournaments produce 1–3 matches a weekend. Adults at the club typically play 1–3 matches a week. Pick one. Not the easiest win, not the most lopsided loss — the most competitive match, where the patterns under pressure are visible.

The player records on a tripod from the back of court. Three to five minutes of analysis time after the match ends. By the time they're home, the report is ready.

This part scales. One match a week per player, ten players on your roster, ten reports a week — none of which you have to process yourself.

2. Send a one-paragraph homework prompt

This is the single biggest unlock. The player needs to know what to look at. You're the coach — you know what they're working on. A good prompt is concrete and asks for evidence:

"Look at the cross-court backhand heatmap from Saturday's match. Compare it to last week's report. Are you getting deeper, or is it still landing in the middle third? Bring me three forehands and three backhands you want to talk about on Tuesday."

Or:

"Pull up the second-serve placement heatmap. Are you spreading the second serve, or always going to the backhand? Find me one second serve you'd like to redo, and one rally where the second serve started a problem."

Send the prompt before they review, not after. The prompt is what turns 20 minutes of watching into a structured exercise.

3. Player reviews the report against your prompt

The PDF report has the data; the prompt gives the player a job. A typical review is:

  • 5 min: open the heatmap, look at the shot-count split, look at the rally-length distribution.
  • 10 min: pick three forehands and three backhands the report flagged (low stroke-quality score, off-target landing, or whatever your prompt asked for).
  • 15 min: watch each clip in slow motion, write a one-line note, time-stamp it.

Total: 20–30 minutes. Done at home, on the player's schedule, without you in the loop.

This is also where the data starts to compound across weeks. By week 4 the player has four reports, four sets of clips, and a longitudinal record of how their backhand is changing. The first few reports are noisy; the trend across reports is the signal.

4. The lesson stays for what only you can do

The player walks into your next lesson with three time-stamped clips and a question. Your hour goes to:

  • Demonstrating the correction live. (AceSense can't show them what good looks like in their own body — only you can.)
  • Feeding the specific pattern. (AceSense can't put a backhand at three-quarter pace into the deuce corner — only you can.)
  • The judgement call about what to fix next. (AceSense surfaces patterns; it doesn't know your player's developmental priorities.)

Your hour didn't go to clipping, didn't go to writing notes, didn't go to "how was your week?" — it went to the highest-leverage thing the player is paying for. That's the workflow.

What AceSense does well in this loop

Three specific things make this work:

  • The PDF report is shareable. Players email or AirDrop it. Parents can forward it. There's nothing to install on your side.
  • The heatmap and shot counts compound across matches. Week-over-week trends are the signal — and a player who hasn't reviewed last week's report can't see the comparison.
  • Stroke-quality scores give the player something objective to react to. "Your forehand grade dropped 8 points this week" is a different conversation than "you felt a bit off."

What AceSense doesn't do (and where you stay essential)

I want to be careful here. Tennis-AI marketing tends to over-promise on coaching replacement, and that's not what AceSense is. Specifically:

  • Stroke-quality scoring is calibrated to a broad ATP/WTA technical baseline. A player you're intentionally building with non-classical mechanics (extreme grip, deliberate kinetic-chain choice) may score lower than a more textbook hit. Treat the score as a discussion starter, not gospel.
  • The report doesn't know what your player needs to fix next. It surfaces patterns. You decide which pattern is the priority — a developmental coach knows that some "errors" are productive struggle, and AceSense doesn't.
  • AI doesn't replace the demonstration. A player learning a new contact point needs to see it modeled. AceSense can show them their own contact point at frame 47 and a graph of where their racket head was; it can't show them what your contact point looks like.

The frame here is AceSense plus a good coach is meaningfully better than either alone. We're not the coach.

A real prompt library

Adapt these to your players' weekly priorities:

  • "Backhand depth — pull the heatmap and tell me where 70% of your backhands are landing."
  • "Second-serve placement variance — count how many times the second serve went to the same corner."
  • "Rally-length distribution — what's your average winning rally vs your average losing rally?"
  • "Approach shots — how many approach shots did you hit, and what was the win rate on the next shot?"
  • "First-strike pattern — on your first-serve points, what shot did you hit second, and what was the win rate?"
  • "Cross-court vs down-the-line ratio — are you mixing it up or living in one diagonal?"
  • "Stroke-quality score by set — did your forehand technique decline after set one?"

One prompt per week. Don't try to coach everything from one report.

Where this fits with your existing tools

A non-trivial number of coaches use OnForm or a similar slow-motion tool for technique work and AceSense for match data. They're complementary:

  • OnForm — detailed slow-motion review of a specific stroke, side-by-side with a model.
  • AceSense — match-level patterns, heatmaps, rally analysis, longitudinal data.

Use OnForm when the question is "is the wrist position right?" Use AceSense when the question is "is this pattern surviving under tournament pressure?"

Pricing for coaches today

The player pays. Pro is €19/mo (unlimited matches), free tier is 3/month. For most one-or-two-match-per-week routines, the free tier covers it. For a player serious enough to upload every match plus practice video, Pro pays for itself in saved coach time.

A multi-player roster view is on our 2026 roadmap. If you're running 10+ regular players today and you want early access, email [email protected] — we're piloting this with a small set of coaches.

FAQ

How do coaches use AceSense between lessons? The four-step loop: player records, you send a prompt, they review the report, they bring clips to the next lesson.

Does AceSense replace a coach? No. It's a between-lessons homework tool. The judgement, the demonstration, and the corrections stay with you.

What level of player is this useful for? NTRP 3.0–4.5 adults, U12–U18 ranked juniors. Below that the data is noisier than the player's variance.

Can I share an AceSense report without the player sending it to me? Today, no — the player generates the report and shares the PDF. A coach inbox is on the 2026 roadmap.

Does AceSense work for the workflow on Android? Yes — and a meaningful share of junior players are on Android phones, so cross-platform support matters for the homework loop.


Try AceSense free — 3 full reports per month is enough to run this loop for one player. Start free · How AceSense works · AceSense for junior coaches · What changes after watching 10 of your own matches