Q 01/05

Which British inventor built the ball-tracking system that brought line-call challenges to tennis?

A) Paul Hawkins

B) Bill Carlton

C) Tony Verna

D) Allan Plaskett

Answer · why

A) Paul Hawkins

Paul Hawkins built it at Roke Manor Research to enhance television coverage of cricket, and only later did tennis adopt it for line-call challenges.

Q 02/05

Hawk-Eye was first used on television in 2001 to analyse which cricket decision?

A) Run-out appeals

B) Stumping appeals

C) Caught behind

D) Leg before wicket

Answer · why

D) Leg before wicket

Leg before wicket: Channel 4's coverage showed viewers where the ball would have gone had the batsman's pad not been in the way, and umpires later got...

Q 03/05

What colour is the virtual first-down line that TV viewers have seen on American football broadcasts since 1998?

A) Blue

B) Yellow

C) White

D) Green

Answer · why

B) Yellow

Yellow: the line exists only on screen, drawn so that players appear to run over it as if it were painted on the grass.

Q 04/05

Which company bought Hawk-Eye Innovations in March 2011?

A) Panasonic

B) Siemens

C) Canon

D) Sony

Answer · why

D) Sony

Sony bought the firm from investors led by the Wisden Group, the cricket publisher that had taken it over in 2006, after it was put up for sale.

Q 05/05

Which Grand Slam first used Hawk-Eye officially for player challenges, in 2006?

A) Wimbledon

B) Australian Open

C) US Open

D) French Open

Answer · why

C) US Open

US Open: the push came from its own 2004 quarter-final, where television replays showed several wrong line calls against Serena Williams in her loss t...