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FastestThings

Tennis

Milos Raonic

249.9 km/h serve against Ryan Harrison in the 2012 SAP Open semifinal.

Also known as Raonic 249.9
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Ball speed

Published as 249.9 km/hPublished as 249.9 km/hPublished as 249.9 km/h

Serve radar at the 2012 SAP Open semifinal, Milos Raonic against Ryan Harrison. 155.3 mph is the conversion Tennis Companion and Wikipedia print beside 249.9 km/h. No calendar day is stored.

OfficialSportskeeda (opens source in a new tab)

In context

  • 2.4× a cheetah's timed top speedSourced · Cheetah, 29 m/s. Sharp 1997, mean of three timed runs over 201.2 m
  • A football field in 1.3 sConstant · American football field, 100 yd (91.44 m)
  • London to New York in 22 h 17 minConstant · London to New York, 5,570 km great-circle

Worked out from the sourced figure above, which stays the ranked number.

This list

Why it's so fast

An ATP or Davis Cup serve is a kinetic chain. The legs, the trunk and the shoulder load, then the racquet head meets the ball. The list keeps the radar figure those events printed.

  1. A loaded throw

    Serve speed is the racquet head at contact, not a practice swing. The toss has to sit where the chain finishes.

  2. Tour radar, not a Challenger

    This list is ATP Tour and Davis Cup radar. A Challenger clock, even a faster one, is a different scope and stays off the ranking.

This is how the category works. A note written for this entry appears here once it is in the database.

Provenance

Every measurement

Claimed, measured and official figures side by side, each with its source. The ranked figure is marked.

  1. 249.9km/h155mph69.4m/s135knRanked figure

    Serve radar at the 2012 SAP Open semifinal, Milos Raonic against Ryan Harrison. 155.3 mph is the conversion Tennis Companion and Wikipedia print beside 249.9 km/h. No calendar day is stored.

    Tennis Companion and Wikipedia both print 249.9 km/h (155.3 mph) at the 2012 SAP Open.

    Official
    Sportskeeda (opens source in a new tab)

Reference

Specs

Server
Milos Raonic
Event
2012 SAP Open
Speed
249.9 km/h
Returner
Ryan Harrison

Context

Background

Sportskeeda prints a 249.9 km/hr serve by Milos Raonic against Ryan Harrison in the semifinals of the 2012 SAP Open. Tennis Companion's table prints 249.9 km/h (155.3 mph) at the 2012 SAP Open. Wikipedia's fastest-serves table prints the same 249.9 km/h (155.3 mph) at the 2012 SAP Open.

The ranked figure is 249.9 km/h. 155.3 mph is that figure in miles. No calendar day is stored. The serve is an ATP Tour match, so it stays on this list.

Spot a wrong number?

Every report is read by a person, and corrections are dated on the page.