Stakhovsky Tennis Research · English edition

Tennis research, made usable.

Stakhovsky Tennis publishes source-backed guides to player levels, serve speed, match length and training costs. Compare the evidence, check its date and reuse the data. For a coaching decision, start with your level, goals and the training format you need.

Launched 9 August 2026Updated 2 November 2026Prague, Czech Republic

Published by Stakhovsky Tennis, the Prague coaching practice of Leonard Stakhovsky.

New practical guides

Match analysis, player development and 2027 planning

Published assets

Evidence you can inspect and reuse

MTL-01 · Rules and data

How long is a tennis match?

Compare scoring formats, dated match-duration studies and ball-in-play time. A sample average is not a time limit or a forecast for your next match.

Read guide →
BAC-01 · Evidence review

Junior-to-pro conversion rates in tennis

An established study tracks juniors toward the pro game and looks back at pros' junior records. Read the verified rates, denominators, time windows and limits. Download the CSV or JSON extracts.

Read review →

Forward programme

Planned research

BAC-02 · Q4 2026

Relative-age effects in junior tennis

What counts of players born in each quarter of the year can and cannot show about selection.

BAC-03 · Q1 2027

Junior-to-pro development costs

A cost model to be built only when we can publish like-for-like country data and the assumptions behind it.

BAC-04 · Q2 2027

NCAA versus direct-to-pro

A guide to weighing the choices for school, matches, costs and player development.

Editorial policy

How this research is published

Scope and review status

We publish evidence reviews, checked data extracts and practical guides to tennis development. Each page says whether it presents new analysis, a review of sources or external peer review. Work reviewed only by our editors is not peer-reviewed research.

Sourcing

We prefer peer-reviewed papers, official tour and federation records, research archives and current prices published by providers. Each numeric claim should state who was studied, the denominator or unit, the time period and the source.

Data and licence

Stakhovsky Tennis-created tables and extracts are released under CC BY 4.0 unless an asset says otherwise. Underlying third-party publications retain their original rights.

Corrections

Material corrections are dated in the asset changelog without erasing the prior version. Send reproducible corrections to leo@stakhovskytennis.com.

Funding and commercial disclosure

Stakhovsky Tennis funds and publishes this hub. It is a commercial coaching practice. No outside sponsor funded the current work. Links to services are labelled and kept separate from research conclusions.

Authorship

Each page names its author and review status. New editorial guides are attributed to Stakhovsky Tennis. A coach's playing record is not evidence that he personally reviewed every research claim.

Stakhovsky Tennis

On court.
In Prague.

Courts in Prague

Prague · districts 3, 4, 7 · primary courts TK Spoje, Hodkovičky, CLTK

Session times

Session times confirmed when booking · current opening hours on Google (Central European Time)

Coaching languages

Coaching available in English, Czech, and Ukrainian

Federation record

Registered with the Czech Tennis Federation (Český tenisový svaz) - Player ID 1070535 · Verify Czech Tennis Federation registration →

Player reviews

Instagram: @stakhovskytennis · Google rating: ★★★★★ 5.0 (checked 1 November 2026) · Read Google reviews for Stakhovsky Tennis →

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