How Many Laps in a Mile Swimming? By Pool Size, in Lengths and Laps
How many laps in a mile swimming? A true mile is 70.4 lengths in a 25-yard pool, 64.4 in 25 metres, 32.2 in 50 metres — plus the 1,650-yard mile.
Sports
The rules, formats and numbers of the major sports, explained simply and correctly.
Flag Football Rules: How Flag Football Works in 5v5 and 7v7
Flag football rules explained: flag pulls replace tackles, 5v5 is the standard, and 7v7 differs on field, downs and the rush. NFL FLAG, Olympic and NFHS rules.
F1 Points System: How Points Work in Grands Prix and Sprints (2026)
F1 points system for 2026: a Grand Prix pays 25-18-15 down to 1 for the top 10, a Sprint pays 8 down to 1 for the top 8. No fastest-lap point. Full scale here.
How Long Is a Soccer Game? 90 Minutes, Halftime, Stoppage Time and Youth Lengths
How long is a soccer game? 90 minutes - two 45-minute halves plus stoppage time. Halftime, extra time, penalties, and youth lengths, per the IFAB Laws.
How Long Is a Football Game? 60 Minutes on the Clock, About 3 Hours in Real Time
How long is a football game? 60 minutes of clock - four 15-minute quarters - but about 3 hours real time. NFL, college, high school, halftime and Super Bowl.
How Many Holes Are in a Golf Round? 18 — and Why
How many holes are in a golf round? 18 - a front nine and a back nine. What par means, 9-hole rounds, why golf settled on 18, and tournament totals.
How Many Miles Is a Marathon? 26.2 Miles, the Half, and Why
How many miles is a marathon? 26.2 miles - exactly 26 miles 385 yards (42.195 km). The half is 13.1. Why the distance is what it is, and typical finish times.
How Many Players Are on a Baseball Team? 9 on the Field, 26 Active, 40 on the Roster
How many players are on a baseball team? 9 on the field, 26 on an MLB active roster, 40 on the full roster — plus September, college and youth numbers.
How Many Players Are on a Basketball Team? 5 on the Court, and the Roster Numbers by League
How many players are on a basketball team? 5 on the court - but rosters differ: NBA 15, WNBA 12, FIBA 12. Court, active and full roster numbers by league.
How Many Players Are on an NFL Team? 11 on the Field, 53 on the Roster, 48 on Game Day
How many players are on an NFL team? 11 on the field, 53 on the roster, 48 dress on game day. Practice squad, 90-man offseason and cutdown numbers explained.
How Many Players Are on a Hockey Team? 6 on the Ice, 20 Dressed and 23 on an NHL Roster
How many players are on a hockey team? 6 on the ice, 20 dressed, 23 on an NHL roster — plus field hockey's 11 and indoor's 6, by the official rulebooks.
How Many Rounds Are in a UFC Fight? 3 Rounds Standard, 5 for Title Fights and Main Events
How many rounds are in a UFC fight? 3 rounds normally, 5 for title fights and main events — 5 minutes each, 1-minute rests, 17 or 29 minutes in total.
How Many Players Are on a Volleyball Team? 6 on the Court, and the Roster Numbers by Level
How many players are on a volleyball team? Six on the court indoors and two in beach, but rosters run from 12 under FIVB rules to 18 in NCAA Division I play.
How Tall Is a Basketball Hoop? 10 Feet, Youth Heights and Rim Specs
How tall is a basketball hoop? 10 feet (3.05 m) in the NBA and FIBA. Rim and backboard specs, plus official youth heights: 8 ft at 7-8, 9 ft at 9-11.
Padel Rules: How to Play, Scoring, the Serve and the 2026 Star Point
Padel rules from the FIP: the 20x10m court, underarm serve below the waist, tennis scoring, walls in play, and the new 2026 Star Point at deuce explained.
Pickleball Rules: How to Play, Scoring, Serves and the Kitchen
Pickleball rules from USA Pickleball: the underhand serve, two-bounce rule, scoring to 11 from a 0-0-2 start, the 7-foot kitchen, line calls, and faults.
What Is DRS in Cricket? The Decision Review System Explained
What is DRS in cricket? The Decision Review System lets teams challenge dismissals: replays, UltraEdge and ball-tracking. Reviews per innings by format.
NFL Overtime Rules Explained: Regular Season vs Playoffs, With the 2025 Change
NFL overtime rules with the 2025 change: both teams now get a possession in the regular season too. 10-minute periods, playoffs, coin toss, and ties explained.
What Is OPS in Baseball? On-Base Plus Slugging, Explained
What is OPS in baseball? On-base percentage plus slugging - one number for getting on base and hitting for power. Formula, worked example, and the scale.
What Is Umpire's Call in Cricket? DRS Explained in Simple Words
What is umpire's call in cricket? When an LBW review is too close, the on-field decision stands. The three checks, the ball-centre rule, and review counts.