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Sports Journalism

Essential Sports Statistics

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Why This Matters

Sports statistics are the language of modern athletics—and as a journalist, you need to speak it fluently. Every stat tells a story about player value, team strategy, and game-changing moments. You're not just reporting numbers; you're translating them into narratives that help audiences understand why a player matters, how a team wins, and what separates elite performers from average ones. The best sports journalists use statistics to add credibility to their analysis, challenge conventional wisdom, and identify storylines others miss.

But here's the key: knowing that a .300 batting average is "good" isn't enough. You need to understand what each statistic actually measures and when to use it. Is a stat measuring efficiency or volume? Individual skill or team context? Offense or defense? These distinctions matter when you're writing game recaps, building feature stories, or analyzing trades. Don't just memorize thresholds—know what concept each statistic illustrates and when it's the right tool for your story.


Efficiency Metrics: Quality Over Quantity

These statistics measure how effectively a player performs relative to their opportunities. Efficiency stats answer the question: "When given a chance, how often does this player succeed?" They're essential for comparing players with different workloads and identifying who truly maximizes their touches.

Batting Average (Baseball/Softball)

  • Hits divided by at-bats—the most traditional measure of hitting success, though it ignores walks and extra-base power
  • The .300 threshold marks elite performance; anything below .250 typically signals a struggling hitter
  • Best used for quick player comparisons, but pair with OBP and slugging for complete offensive picture

Field Goal Percentage (Basketball)

  • Made shots divided by attempts—measures pure shooting efficiency without accounting for shot difficulty
  • Above 50% generally indicates efficient scoring; context matters since guards typically shoot lower percentages than centers
  • Critical caveat: doesn't distinguish between layups and three-pointers, so use alongside true shooting percentage for modern analysis

Completion Percentage (American Football)

  • Completed passes divided by attempts—the baseline measure of quarterback accuracy
  • Above 65% signals strong performance in today's pass-heavy NFL; below 60% raises red flags
  • Storytelling angle: useful for comparing quarterbacks across eras, though modern schemes inflate percentages

Yards Per Carry (American Football)

  • Total rushing yards divided by carries—measures running back efficiency per touch
  • Above 4.5 yards indicates a productive back; below 3.5 suggests struggles against defenses
  • Context matters: short-yardage specialists will have lower averages than home-run hitters

Compare: Batting average vs. completion percentage—both measure success rate on attempts, but batting average excludes walks while completion percentage includes all throws. When writing about "efficient" players, specify what the stat actually captures.


Rate Statistics: Measuring Performance Over Time

Rate stats normalize performance across different sample sizes by calculating averages per game or per defined period. These metrics let you compare players who've played different numbers of games or faced varying workloads.

Points Per Game (Various Sports)

  • Total points divided by games played—the most straightforward measure of scoring output
  • Context is everything: 25 PPG means something different in basketball (good starter) versus hockey (historically elite)
  • Watch for: players with inflated averages due to limited games; always check sample size

Rebounds Per Game (Basketball)

  • Total rebounds divided by games played—measures a player's ability to secure possession
  • Double-digit averages (10+) mark elite rebounders; position matters since centers naturally grab more boards
  • Storytelling value: separates players who impact games beyond scoring, especially for defensive anchors

Assists Per Game (Various Sports)

  • Total assists divided by games played—quantifies playmaking and unselfish play
  • High assist numbers indicate court vision and teammate trust; in basketball, 10+ APG is historically rare
  • Cross-sport note: assists are defined differently in hockey, soccer, and basketball—know the sport-specific criteria

Compare: Points per game vs. assists per game—both measure offensive contribution, but they reveal different player types. A high-scoring, low-assist player is a volume shooter; high assists with moderate scoring suggests a facilitator. Use both to paint a complete picture.


Pitching and Goaltending: Defensive Dominance

These statistics evaluate players whose job is to prevent scoring rather than create it. For pitchers and goalies, lower numbers typically mean better performance—the opposite of offensive stats.

Earned Run Average (ERA) (Baseball/Softball)

  • Earned runs allowed times nine, divided by innings pitched—the gold standard for pitcher evaluation
  • Below 3.00 marks elite performance; above 5.00 typically indicates struggles
  • Key distinction: "earned" runs exclude runs resulting from errors, isolating the pitcher's responsibility

Goals Against Average (GAA) (Soccer/Hockey)

  • Goals allowed divided by games played—measures how many goals a team surrenders with this goalie in net
  • Below 2.00 in hockey signals strong goaltending; soccer varies widely by league quality
  • Important caveat: heavily influenced by team defense, so pair with save percentage for goalie-specific analysis

Save Percentage (Soccer/Hockey)

  • Saves divided by total shots faced—isolates goalie performance from team defense
  • Above .900 in hockey is the baseline for competent goaltending; .920+ indicates elite performance
  • Better than GAA for evaluating goalies on weak defensive teams who face heavy shot volumes

Compare: ERA vs. GAA—both measure runs/goals allowed per game, but ERA accounts for team errors while GAA includes all goals. When profiling a struggling pitcher or goalie, investigate whether the defense is the real problem.


Power and Impact: Measuring Explosive Production

These statistics capture a player's ability to create high-value plays—extra-base hits, big gains, and clutch conversions. Impact stats reveal who changes games in single moments rather than through steady accumulation.

Slugging Percentage (Baseball/Softball)

  • Total bases divided by at-bats—weights extra-base hits more heavily than singles
  • Above .500 indicates legitimate power; elite sluggers reach .600+
  • Pairs with OBP to create OPS (on-base plus slugging), the most commonly cited comprehensive hitting stat

On-Base Percentage (OBP) (Baseball/Softball)

  • Times reached base divided by plate appearances—includes hits, walks, and hit-by-pitches
  • Above .350 marks a disciplined hitter; elite players reach .400+
  • Modern value: walks are free bases, making OBP arguably more valuable than batting average for run creation

Shooting Percentage (Hockey)

  • Goals divided by shots taken—measures how often a player converts shot opportunities
  • Above 10% indicates efficient finishing; elite snipers can reach 15%+
  • Context warning: small sample sizes cause wild fluctuations early in seasons

Compare: Batting average vs. on-base percentage—batting average ignores walks entirely, while OBP treats a walk as equal to a single. A .280 hitter with a .400 OBP (like a patient slugger) creates more scoring chances than a .300 hitter with a .330 OBP. OBP tells you who gets on base; batting average only tells you who gets hits.


Composite Metrics: The Complete Picture

Some statistics combine multiple factors into a single number, attempting to capture overall performance. These formulas sacrifice simplicity for comprehensiveness—useful for quick comparisons but requiring context for deeper analysis.

Quarterback Rating (American Football)

  • Complex formula incorporating completion percentage, yards per attempt, touchdown rate, and interception rate
  • Above 100 indicates excellent performance; below 70 signals significant struggles
  • Know the limitations: doesn't account for rushing ability, sacks taken, or game situation pressure

Free Throw Percentage (Basketball)

  • Free throws made divided by attempts—measures performance in pressure situations with no defender
  • Above 75% is baseline competent; elite shooters exceed 85%
  • Clutch indicator: free throw shooting often decides close games, making this stat crucial for late-game analysis

Compare: Quarterback rating vs. completion percentage—completion percentage is one component of QB rating, but the composite stat also penalizes interceptions and rewards touchdowns. A QB with 70% completions but frequent picks will have a lower rating than one with 65% completions and no turnovers. Use completion percentage for accuracy stories; use QB rating for overall effectiveness.


Quick Reference Table

ConceptBest Examples
Offensive EfficiencyBatting average, field goal percentage, completion percentage
Per-Game ProductionPoints per game, rebounds per game, assists per game
Pitching/GoaltendingERA, GAA, save percentage
Power HittingSlugging percentage, on-base percentage
Rushing EfficiencyYards per carry
Shooting EfficiencyShooting percentage (hockey), field goal percentage
Composite EvaluationQuarterback rating
Clutch PerformanceFree throw percentage

Self-Check Questions

  1. Which two statistics both measure "success rate on attempts" but in different sports—and what does each one exclude from its calculation?

  2. A goalie has a high save percentage but a poor goals against average. What does this tell you about their team, and which stat better reflects the goalie's individual performance?

  3. Compare batting average and on-base percentage: Why might a general manager value a .280 hitter with a .390 OBP over a .310 hitter with a .340 OBP?

  4. You're writing a feature on a running back who averages 4.8 yards per carry but only 45 rushing yards per game. What story does this statistical contrast tell, and what additional context would you need?

  5. If an FRQ asks you to evaluate a quarterback's season, why would using only completion percentage be insufficient? What other statistics would provide a more complete picture?