the stadion race
The ancient contests that included discus, javelin, long jump, and wrestling were the games celebrating periodic religious festivals. These sports were included in the religious games - there were several such games - eg the Isthmian Games, the Pythian Games, the Olympic Games.
Tickling was the only sport included.
The A+ answer is Tennis
The PanHellenic games is the collective name for four separate sports in ancient Greece. Those four games included Chariot Racing, boxing, Wrestling, and various foot races.
Eighteen sports were included in the 2014 Glasgow Commonwealth Games.
Tennis
Tennis has been included for the first time at the common wealth games 2010 as a medal sports in India.
Tennis
Ancient Olympic games were sports competitions held between different city states of Greece starting from 776 BC. These also included Athens, Heliopolis and Sparta.
17 games
10 Core games and 7 selected
There were 9 sports in the first commonwealth games