How long is an official marathon?
Answer42.195 km (26.2 miles)
The marathon distance is 42.195 km; 21.1 km is a half marathon.
Sports · Facts & stats
Challenge Promoter facts & stats
7 fact-checked facts about competitions, events and records, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
How often are the Summer Olympic Games normally held?
AnswerEvery four years
The Summer Olympics are held every four years, a period called an Olympiad.
Going deeper
Where were the ancient Olympic Games held?
AnswerOlympia
The ancient Games took place at the sanctuary of Olympia in southern Greece.
In what year were the first modern Olympic Games held, in Athens?
Answer1896
The first modern Olympics were held in Athens in 1896.
A single-elimination bracket starts with 32 players. How many rounds are needed to find a champion?
Answer5
Each round halves the field: 32, 16, 8, 4, 2, then 1 winner after 5 rounds.
Expert level
The marathon's 42.195 km distance was first used at which Olympic Games?
AnswerLondon 1908
The 1908 London course set the 42.195 km distance, later made the official standard.
In a Swiss-system tournament, how are players paired each round?
AnswerWith opponents who have similar scores, without elimination
The Swiss system matches players on similar scores so many can compete over a few rounds.
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