298 articles · page 8 of 13
Articles 169–192 of 298, newest first. The introduction to this reading list, its topic hubs and the guides other articles cite most are on the first page.
How pro tennis punishes misconduct and slow play in 2026: the warning, point and game penalty scale, the 25-second clock, and medical timeout limits.
Why clay plays slow and grass plays fast, how the ITF measures court pace, which ball belongs on which surface, and what surface does to serving.
How a tennis rating differs from a ranking, and how the USTA's NTRP, the UTR Rating and the ITF's World Tennis Number each measure playing level.
The rules of tennis in plain language: where to serve from, faults and foot faults, lets, the ways to lose a point, and the size of the court.
What the numbers on a tennis stat sheet mean, which are counts and which are a scorer's judgement, and why service points won tells you the most.
How a tennis tiebreak works: first to seven by two, the one-two-two serve order, when players change ends, and where 10-point tiebreaks are used.
How round robin, single and double elimination and Swiss systems work, how many games each needs, and how much luck each format leaves in the result.
A when-to-go-for-two chart rebuilt from scoring values, the expected-value test underneath it, and the NFL's official two-point success rates through 2025.
The main types of hockey shots, the trade-off each makes between release, power and accuracy, the order players learn them, and the rules that shape them.
Fourteen pitch types, grouped by what they do to a hitter: raw speed, late movement, spin and changes of pace. How each one works and how often you will see it.
How MMA submissions split into chokes, joint locks and compression locks, what the current Unified Rules ban, and how a tap or technical submission is recorded.
Which top-flight soccer teams have gone a whole league season unbeaten, why unbeaten is not the same as perfect, and how league points treat all those draws.
Which fighters retired with no losses, how draws and no contests affect a record, and the arithmetic that makes an unbeaten career so rare in boxing and MMA.
What the ABC Unified Rules of MMA (version 8.2026) allow and forbid, how the grounded-fighter test works, and where the 12-6 elbow stands now.
Declaring a ball unplayable costs one stroke and gives you three options, four in a bunker. How each works, and when taking one saves strokes.
A balk is an illegal act by the pitcher with runners on base, and every runner moves up. The 13 balk actions, the penalty and the disengagement limit.
Corsi counts shot attempts, Fenwick drops the blocked ones and PDO adds shooting and save percentages. How each works, a worked example, and where they mislead.
Expected points put a value on every down, distance and yard line, and EPA measures how much one play changed it. A worked drive shows how success rate differs.
Expected goals gives every unblocked hockey shot a probability of scoring. How the models work, how goals saved above expected follows, and what xG can't see.
What the landmark fourth-down studies found, the break-even yardage they estimated across the field, and why tracking data shrinks the case for aggression.
Why trailing hockey teams pull the goalie, what published research found about timing, how the trade-off works, and what the models cannot see.
Golf's 18-hole round began at St Andrews in 1764 and spread slowly. The documented history, and where par, bogey, birdie, eagle and albatross came from.
Man-to-man guards players, zone guards areas. How 2-3, 1-2-2 and 1-3-1 zones work, what each system concedes, and why zone defence is legal in the NBA.
Career modes are written about as growth stories, but every career has a second half. What the research says about peak age, and how to play the years after it.