How does the MLB rivalry quiz work?

You get ten questions. Each names two teams and asks which one leads their all-time head-to-head series. Pick a side, then see the real record. Today's quiz is the same ten questions for everyone on a given day, and the random quiz deals a fresh set each time.

Where do the MLB questions come from?

From 416 series between current MLB teams, covering 220,732 games. A series needs at least 10 meetings and a clear leader; exactly level series are never asked. Every record is the one on that matchup's page.

How often does the quiz change?

Today's quiz changes at midnight in your time zone. The random quiz is unlimited, so you can play as many sets as you like.

Can I play an earlier day's quiz?

Yes. When you finish a daily quiz, use Previous day, or open a shared score link: it carries its date, so you get the same ten questions your friend did. Past days are dealt from today's records, so a day replayed after new games can differ slightly.

What is the most-played MLB series in the quiz?

Chicago Cubs vs Pittsburgh Pirates, with 2635 meetings since 1887.

Ties are listed in the record you see after answering, but the leader is decided by wins alone.

MLB Rivalry Quiz: Who Leads the Series?

Two MLB teams, one all-time series. Pick the team that leads the head-to-head record, then see the real numbers. Ten questions, a new set every day.

The quiz needs JavaScript. Meanwhile, here are the most-played MLB series.

Chicago Cubs vs Pittsburgh Pirates 2635 meetings since 1887
Pittsburgh Pirates vs St. Louis Cardinals 2623 meetings since 1882
Los Angeles Dodgers vs San Francisco Giants 2610 meetings since 1890
Atlanta Braves vs Philadelphia Phillies 2587 meetings since 1883
Chicago Cubs vs St. Louis Cardinals 2543 meetings since 1892
Cincinnati Reds vs Pittsburgh Pirates 2540 meetings since 1882
Cincinnati Reds vs St. Louis Cardinals 2531 meetings since 1882
Chicago Cubs vs Cincinnati Reds 2442 meetings since 1890

Try one: Chicago Cubs or Pittsburgh Pirates?

Which team leads the all-time series between the Chicago Cubs and the Pittsburgh Pirates? They have met 2635 times since 1887.

Show the answer

The Pittsburgh Pirates lead the Chicago Cubs 1323-1293-19, counting 19 ties. See every meeting.

About this quiz

This quiz draws on 416 series between current MLB teams, 220,732 games in all. The oldest began in 1871. The most-played is Chicago Cubs vs Pittsburgh Pirates, with 2635 meetings. A series needs at least 10 meetings and a clear leader to be asked.

How it works

Each question names two current teams and asks who leads their all-time series. Pick a side, see the record, and move on. Today's quiz is a fixed MLB set for each day, saved apart from the site-wide quiz, so playing one never marks the other done. Random quiz deals a new MLB set whenever you ask. Your results stay in your browser.

Every record comes from the matchup pages. See the MLB head-to-head records and the MLB streaks, blowouts and closest rivalries.

Questions

How does the MLB rivalry quiz work?: You get ten questions. Each names two teams and asks which one leads their all-time head-to-head series. Pick a side, then see the real record. Today's quiz is the same ten questions for everyone on a given day, and the random quiz deals a fresh set each time.
Where do the MLB questions come from?: From 416 series between current MLB teams, covering 220,732 games. A series needs at least 10 meetings and a clear leader; exactly level series are never asked. Every record is the one on that matchup's page.
How often does the quiz change?: Today's quiz changes at midnight in your time zone. The random quiz is unlimited, so you can play as many sets as you like.
Can I play an earlier day's quiz?: Yes. When you finish a daily quiz, use Previous day, or open a shared score link: it carries its date, so you get the same ten questions your friend did. Past days are dealt from today's records, so a day replayed after new games can differ slightly.
What is the most-played MLB series in the quiz?: Chicago Cubs vs Pittsburgh Pirates, with 2635 meetings since 1887.
Do ties count?: Ties are listed in the record you see after answering, but the leader is decided by wins alone.

Other rivalry quizzes

Sources

Records are computed from every final game result in the Matchup Index database. About the data.