National Basketball Association

Season Calendar

The NBA regular season tips off in mid-October and stretches through mid-April, with each of the thirty teams playing an 82-game schedule — a deliberate marathon designed to separate the truly great from the merely talented. The All-Star break in February provides a midseason respite, while the league’s In-Season Tournament, introduced in 2023, adds a knockout competition layered atop the regular schedule. The playoffs begin in April and can extend into late June, meaning the full NBA calendar commands nearly nine months of the sporting year.

Team Format

Each team carries a 15-man roster, with 13 players active on game nights and five starters taking the court. The NBA operates under a soft salary cap with a luxury tax threshold — teams can exceed the cap to retain their own players, but face escalating financial penalties for doing so. The NBA Draft, held each June, consists of two rounds, with lottery odds weighted toward the league’s weakest teams.

Thirty franchises are split between the Eastern and Western Conferences, each containing three divisions. The conference structure determines playoff seeding and ensures geographic rivalries, though the league’s scheduling formula guarantees that every team faces every other team at least twice each season.

Game Format

Basketball is played with five players per side on a 94-by-50-foot hardwood court. Teams score by shooting the ball through a basket mounted ten feet above the floor: two points from inside the three-point arc, three points from beyond it, and one point per free throw awarded after shooting fouls. Games consist of four twelve-minute quarters, with a fifteen-minute halftime intermission.

The 24-second shot clock ensures a relentless pace — teams must attempt a field goal before it expires or surrender possession. The three-point revolution has remade the geometry of the modern game, stretching defenses to the breaking point and turning sharpshooters into the most valuable commodities in the sport. An eight-second backcourt violation and a ten-second free-throw limit keep the action flowing at a speed no other major team sport can match.

Key Rules

Personal fouls regulate physical contact: a player who accumulates six fouls is disqualified from the game, and team fouls beyond a quarterly threshold send opponents to the free-throw line in a bonus situation. Flagrant fouls — excessive or unnecessary contact — carry additional penalties including ejection and potential suspension. Technical fouls punish unsportsmanlike conduct, from arguing with officials to hanging on the rim after a dunk.

The restricted area arc beneath the basket prevents defenders from drawing charging fouls simply by standing under the hoop, while goaltending and basket interference rules prohibit players from touching the ball on its downward trajectory toward the rim. Traveling, double dribble, and carrying violations enforce the fundamental dribbling mechanics that distinguish basketball from handball.

Playoff Format

Sixteen teams qualify for the NBA playoffs — six division seeds plus four play-in tournament survivors from each conference. The play-in tournament, introduced permanently in 2021, pits the seventh through tenth seeds against each other for the final two spots, injecting late-season drama into races that might otherwise be settled weeks early.

The playoffs proper consist of four rounds of best-of-seven series: the first round, conference semifinals, conference finals, and the NBA Finals. Home-court advantage is awarded to the higher seed, and the grueling format rewards depth, adaptability, and the kind of clutch performance that defines legacies. The Larry O’Brien Trophy is presented to the champion on the court in a coronation ceremony that has produced some of the most iconic images in sports history.