Sports Wiki
Evergreen explainers on the rules, tactics, records and numbers behind football and basketball — built to be read long after the final whistle.
- Trivia4 Sept 2026
Why do footballers swap shirts?
Where the shirt-swap tradition comes from, what the gesture means, why it sometimes causes controversy, and the rules that govern when players can and cannot do it.
- Trivia4 Sept 2026
Why is basketball played in quarters?
Why professional basketball is divided into four quarters while college games use halves, what the breaks are for, and how the structure shapes the flow of a game.
- Trivia4 Sept 2026
The origin of the World Cup: how football's biggest event began
Where the World Cup came from, who drove its creation, why the first tournament was held in Uruguay, and how it grew into the sport's greatest competition.
- Trivia4 Sept 2026
The origin of the NBA Draft
What the NBA Draft is, why it was created to balance the league, how the order of picks works, and why the draft lottery was introduced.
- Trivia4 Sept 2026
The origin of the NBA All-Star Game
How the NBA All-Star Game began, why the young league created it, how players are chosen, and how the exhibition grew into a celebration of the sport.
- Trivia4 Sept 2026
The origin of promotion and relegation
Where the system of moving up and down divisions came from, how the football pyramid works, and why it makes European football so different from closed American leagues.
- Trivia4 Sept 2026
The origin of March Madness
What March Madness is, where the famous name came from, how the college tournament became a national obsession, and why single-elimination makes it so dramatic.
- Trivia4 Sept 2026
The evolution of the football: from leather to modern design
How the football itself has changed over time, why old balls became so heavy, where the classic black-and-white design came from, and how modern balls are made.
- Rankings4 Sept 2026
Win Shares and VORP explained: catch-all value metrics
Win Shares and VORP in one sentence, how each turns a player's production into total value, why they differ from raw plus-minus, and the limits of any single all-in-one number.
- Rankings4 Sept 2026
The four factors of basketball explained
The four factors in one sentence, what each one measures, why they are ranked in order of importance, and how they explain why a team wins or loses.
- Rankings4 Sept 2026
What is PPDA? Measuring how hard a team presses
PPDA in one sentence, how the number is built from passes and defensive actions, why a low value means aggressive pressing, and how to read it in the context of the game.
- Rankings4 Sept 2026
What is PER? Player Efficiency Rating explained
Player Efficiency Rating in one sentence, how it squeezes a player's box score into one number, why the league average is always fifteen, and the limits you should keep in mind.
- Rankings4 Sept 2026
Offensive and defensive rating explained
Offensive and defensive rating in one sentence, why measuring per possession matters, how net rating ties to winning, and how to read these numbers for teams and players.
- Rankings4 Sept 2026
What is xPts (expected points)? A fairer league table
Expected points in one sentence, how a match's chances turn into win, draw and loss probabilities, why an xPts table reveals over- and under-performers, and how to read it wisely.
- Rankings4 Sept 2026
xGA and xGD explained: measuring a team's real quality
Expected goals against and expected goal difference in plain terms, how they measure defence and overall control, why they predict future results better than the league table, and how to use them.
- Rankings4 Sept 2026
What is xA (expected assists)? Measuring chance creation
Expected assists in one sentence, how a pass earns a value from the shot it sets up, why xA judges a playmaker more fairly than the assist column, and how to read it without over-trusting one game.
- Trivia31 Aug 2026
Why do teams retire jersey numbers? The highest honour, explained
What retiring a number means, where the tradition came from, why it is considered the ultimate club honour, and the rare cases where a number is retired league-wide.
- Trivia31 Aug 2026
Why do teams have home and away kits? The story of the change strip
Why football teams carry a second kit — the colour-clash problem it solves, how the 'change strip' became standard, and how third kits turned into a commercial fixture.
- Trivia31 Aug 2026
Why do footballers wear numbers? The history of shirt numbers
How shirt numbers came to football — the early experiments, the 1-to-11 system tied to positions, and the shift to fixed squad numbers and names on the back.
- Trivia31 Aug 2026
Why is a basketball orange? The story behind the colour
Basketballs were not always orange — the early brown ball, why visibility drove the change to the now-standard orange, and how one coach's idea became universal.