Demystifying "NBA GB" and Other Standings Shorthand

Hey there fellow NBA fan, are you looking to better understand what all those "GB" and other confusing abbreviations mean when you‘re checking the latest standings? As a basketball stat geek, let me walk you through the essential need-to-know stats that bring the playoff race to life.

Growing up watching legendary Bulls-Knicks rivalries on a grainy TV, I‘ve been hooked on NBA standings since my early teens. The "GB" and "L10" columns created intrigue – how far back was my team? What did these abbreviations stand for? From anxiously checking box scores in the newspaper to today‘s real-time digital stats, that thirst for up-to-date standings has stuck with me.

Now, as both a recreational player and data analyst, I want to provide the full court press on what GB means, how it’s calculated, and many other shorthand metrics that add drama as teams battle down the stretch. Consider this your savvy insider’s guide to understanding the numbers!

What Is "Games Behind" in the NBA?

"GB" simply refers to "games behind" based on the win-loss records of the top team and other teams in a division or conference. It summarizes at a glance how far back that team is from the pacesetter in the race for playoff positioning.

A team 5 GB has 5 fewer wins than the current leader in the standings. Easy enough so far! But how exactly is GB determined on a game-by-game basis? Let‘s break down the math:

GB Formula:
*(First place team‘s wins) – (Other team‘s wins)

• (First place team‘s losses) + (Other team‘s losses)*

Then divide that total by 2.

For example:

• Team A – 35 wins, 10 losses
• Team B – 30 wins, 15 losses

So Team A has 35 – 30 = 5 more wins
And 10 – 15 = 5 fewer losses

That‘s a 10 game differential in Team A‘s favor
10/2 = Team B is 5 GB of Team A

This GB metric is so ingrained that we automatically associate a large number, like 10+ GB with a team having no shot at the playoffs. While being up 10 with 20 games left may still seem hopeless, crazy comebacks like the ‘95 Rockets (down 10 GB on March 1st) give hope!

Tracking The Playoff Picture with "NBA L10"

Complementing GB, "L10" stands for last 10 games – a snapshot of wins and losses from the past couple weeks. This helps gauge which teams are heating up or cooling off as the playoff race nears the finish line.

For example, a "7-3 L10" record signals strong momentum with 7 wins over the last 10 contests. Meanwhile, a mediocre "4-6 L10" indicates a team trending the wrong direction. Keep an eye on L10 fluctuations, especially among teams with similar GB who are battling for one playoff spot. Will the surging team with positive L10 overtake the freefalling squad? The next few games will determine everything!

The Evolution to 82 Games

Believe it or not, the 82 game schedule we now take for granted was far from set in stone in the NBA‘s early days:

• 1946-47 inaugural season: 60 games
• 1949-50: 66 games
• 1961-62: 80 games
• 1966-67: 81 games

Finally in the 1967-68 season, the league expanded to 12 total teams with the addition of the Seattle Supersonics and San Diego Rockets. This allowed a perfectly balanced schedule where each team played their 7 conference opponents 8 times (4 home, 4 away). They played the 5 teams from the other conference 7 times each (4 home, 3 away). Add that up – 7 x 8 = 56 conference matchups and 5 x 7 = 35 non-conference matchups. 56 + 35 totals to the nice round 82 game schedule we‘ve had ever since!

As the NBA grew in popularity through the 80s/90s, you wonder if they ever considered expanding the schedule further. But there‘s an art and science behind staying at 82 games. It provides a large enough sample size over 6 months to determine the true best teams, without excessively taxing players‘ bodies or diminishing the significance of each individual game. The 82 game marathon ultimately strikes the right balance for the NBA regular season.

Playoff Positioning: The Anatomy of a Good Race

Now that we‘ve covered the backstory of the schedule, let‘s bring it back to analyzing standings and playoff races. I distinctly remember sprinting home from high school in May of 1998 to catch the results of a huge Jazz-Spurs showdown. Utah was 1 GB of San Antonio in the Midwest Division with 2 weeks left. A road win in San Antonio would pull them even! The game did not disappoint, coming down to the final possession with the Jazz prevailing to tie the standings. They seized division title on the season‘s final day – a one game swing triggered by that monumental head-to-head matchup.

In the modern NBA, the best playoff races emerge when the teams have played each other frequently, resulting in a separatation of just a few GB. The familiarity breeds contempt and amps up the drama when they face off again. Local geographic rivalries also play a role. In today‘s East, a photo finish between the Celtics, 76ers, and Raptors would be far more compelling than one between Miami, Milwaukee, and Charlotte based on history.

While blowout seasons are fun for fans of the dominant team, everyone else quickly loses interest. The playoffs are universally more exciting when multiple teams have a credible shot and are within 3-4 GB in the closing weeks.

Additional NBA Standings Shorthand and Terminology

Let‘s round out this NBA statistics crash course by decoding a few other popular abbreviations and metrics you‘ll encounter:

• MPG: Minutes per game, measuring playing time
• PER: Player efficiency rating, an all-in-one performance metric
• TS%: True shooting percentage, accounting for three pointers and free throws
• eFG%: Effective field goal percentage
• USG%: Usage percentage, estimating plays a player is involved in
• ORTG and DRTG: Offensive and defensive rating, points scored/allowed per 100 possessions
• PIPM: Player impact plus-minus rating
• RAPTOR: Comprehensive player rating from FiveThirtyEight

I won‘t bury you with the formulas behind these. Just know the NBA stat universe is ever-expanding! But even fancier metrics still trace back to reflecting a team‘s wins, losses, and GB.

Advanced analytics provide value, but GB keeps it simple and meaningful. The eye test supports GB too – we can clearly see the better teams pulling away atop the standings. At its core, despite revolutionary changes in playing style and scoring over 50+ years, winning and GB remains the bottom line. I‘m thankful the NBA has found balance in staying at 82 games to keep each one exciting.

Anyway, we‘ve covered a ton here! Let me know if you have any other questions on standings and stats. I‘m always down to nerd out over basketball numbers!