Tennis Glossary

A-Z guide to tennis statistics and coaching terminology

Metrics Concepts
4 terms
All Serve Metrics Return Metrics Rally Metrics Match & Score Metrics Pressure Metrics Placement & Pattern Metrics Consistency & Error Metrics Movement & Physical Metrics Development Metrics Analytics & Meta Metrics
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

P

Percentile Analytics & Meta Metrics ★ ★ ★ ★ ★
🖼️ What
A score indicating where a player's stat falls relative to a comparison group.
📡 The Signal
Relative standing. 80th percentile means better than 80% of the group. Context-dependent — always ask 'compared to whom?'
🎯 Why It Matters
Raw numbers mean little without context. Percentiles provide that context by comparing against peers.
⭐ Impact
2/5 — Contributing factor
📝 Example
A 1st Serve % of 62% might be 75th percentile among U14 girls but only 40th percentile among U16.
📏 How it's measured
Player stat value ranked against all values in the comparison group, expressed as a percentage.
🚧 Common Mistake
Comparing percentiles across different comparison groups (e.g. squad vs ATP benchmarks).
🔁 Related Terms
squad-benchmark scouting-report radar-chart

R

Radar Chart Analytics & Meta Metrics ★ ★ ★ ★ ★
🖼️ What
A circular chart with multiple axes, each representing a different metric.
📡 The Signal
Shape tells the story — a large, even shape means well-rounded; spikes and dips reveal specialisation or weakness.
🎯 Why It Matters
Makes complex multi-metric data instantly understandable. One glance reveals the player's profile.
⭐ Impact
2/5 — Contributing factor
📏 How it's measured
Player values plotted on normalised axes and connected to form a polygon shape.
🔁 Related Terms
scouting-report percentile

S

Scouting Report Analytics & Meta Metrics ★ ★ ★ ★ ★
🖼️ What
A performance profile showing key statistics plotted on a radar chart against squad benchmarks.
📡 The Signal
The big picture at a glance. Shape of the radar reveals playing style; gaps reveal priorities.
🎯 Why It Matters
Gives coaches and players a quick visual overview of strengths and weaknesses across 12 key metrics.
⭐ Impact
4/5 — Key factor
📝 Example
A player's radar shows a large serve sector but small return sector — strong server, needs return work.
📏 How it's measured
12 scouting metrics plotted against percentile scales derived from squad benchmarks.
🔁 Related Terms
radar-chart percentile squad-benchmark
Squad Benchmark Analytics & Meta Metrics ★ ★ ★ ★ ★
🖼️ What
The average performance level of the training squad across key metrics.
📡 The Signal
Your peer reference point. Where you sit relative to squad average shows whether you're leading or trailing in each area.
🎯 Why It Matters
Provides a meaningful local comparison for players in the same training environment.
⭐ Impact
2/5 — Contributing factor
📏 How it's measured
Mean of all squad players' values for each scouting metric.
🔁 Related Terms
percentile scouting-report

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