Think you know baseball? NUT Check is a free baseball trivia game that puts your knowledge of MLB career stats to the test. Two players appear side by side, a career stat is shown, and you pick who has the better number. It's simple, it's addicting, and it covers 13 decades of baseball history — from the dead-ball era of the 1900s all the way to today's stars.

Play NUT Check now →

How NUT Check Works

Every round shows you two MLB players from the same era — hitters vs hitters, pitchers vs pitchers. A random career stat category appears: home runs, batting average, ERA, stolen bases, strikeouts, RBI, OPS, wins, the NUT Score, and more.

Your job is simple: tap the player with the better career number. Higher batting average? More home runs? Lower ERA? Get it right and your streak continues. Get it wrong and it's game over.

After each pick, both players' full career stats are revealed side by side — so you learn something every single round, whether you got it right or not.

Daily NUT Check — A New Game Every Day

Every day, NUT Check generates a brand-new daily challenge. The daily game picks a random decade and a random stat category, then gives you 10 rounds — all in the same category. One day you might be comparing 1990s players by career home runs. The next, you're guessing which 1960s pitcher had the lower ERA.

Everyone gets the same matchups on the same day, so you can compare your score with friends. Share your results on X with the built-in share button — your emoji grid shows exactly how you did:

The daily game also tracks your day streak — how many consecutive days you've played. Miss a day and the streak resets.

Missed yesterday? No problem. NUT Check keeps a 7-day archive of past daily games so you can always go back and play ones you missed. (Archive games don't count toward your day streak, though.)

Free Play Mode — Endless Streaks

If 10 rounds isn't enough, Free Play mode lets you keep going as long as you want. Pick any decade — 2020s, 2010s, 2000s, 1990s, 1980s, 1970s, 1960s, 1950s, 1940s, 1930s, 1920s, 1910s, or 1900s — and see how long your streak can go.

Unlike the daily game where the category stays the same, Free Play throws a different stat at you every round. One round it's career batting average, the next it's career strikeouts, then career WHIP. You need to know a little bit about everything.

It Gets Harder the Better You Do

NUT Check doesn't just throw random matchups at you. The difficulty scales as your streak grows:

• Rounds 1–3: Warm-up — noticeable gaps, but both players are legit.
• Rounds 4–6: Medium — both players are solid and the edge gets tighter.
• Rounds 7–9: Hard — similar caliber players where the gap is razor-thin.
• Round 10+: Expert — you're splitting hairs between All-Stars with nearly identical numbers.

This is what makes high streaks genuinely impressive. Getting to round 10 means you survived some brutal matchups.

13 Decades of Baseball History

NUT Check features over 1,000 MLB players spanning every era of professional baseball:

• 2020s: Ohtani, Judge, Soto, Skubal, deGrom
• 2010s: Trout, Kershaw, Scherzer, Harper, Cabrera
• 2000s: Pujols, Bonds, A-Rod, Halladay, Santana
• 1990s: Griffey Jr., Maddux, Pedro, Thomas, Piazza
• 1980s: Rickey Henderson, Schmidt, Clemens, Boggs, Ryan
• 1970s: Aaron, Bench, Seaver, Carlton, Rose
• 1960s: Mays, Koufax, Mantle, Gibson, Frank Robinson
• 1950s: Williams, Spahn, Banks, Snider, Berra
• 1940s: DiMaggio, Musial, Feller, Kiner
• 1930s: Ruth, Gehrig, Foxx, Grove, Ott
• 1920s: Cobb, Hornsby, Speaker, Walter Johnson
• 1910s: Wagner, Mathewson, Eddie Collins
• 1900s: Cy Young, Lajoie, Mordecai Brown, Ed Walsh

All stats are full career totals — the decade just determines which players you see. So you're always comparing complete careers, not just what someone did in a single era.

What Stats Can You Be Quizzed On?

NUT Check covers every major career stat:

After you answer, both players' full stat lines appear in the same order as their player profile pages — so you can dig into the numbers and understand why one player edged out the other.

How NUT Check Helps You Learn Baseball

Most baseball trivia games test whether you can remember random facts. NUT Check is different — it builds your intuition for player value. After a few games, you start developing a feel for what a “good” career batting average looks like, how many home runs separates a great player from an all-time great, or what ERA range puts a pitcher in the Hall of Fame conversation.

Every wrong answer teaches you something. When you guess that Derek Jeter had more career home runs than Chipper Jones and find out you were wrong (260 vs 468), that sticks with you. It's learning through playing, not studying.

The 13-decade span also gives you exposure to players you might not know well. Most fans know the modern stars, but how much do you know about 1950s pitchers or 1930s sluggers? NUT Check fills in those gaps naturally.

Share and Compete

NUT Check is built for sharing. After every game, you can:

• Share Results on X — opens Twitter/X with your emoji grid and score pre-filled
• Copy Results — copies the formatted results to your clipboard for pasting anywhere
• Invite a friend — sends a link to the game so they can try to beat your score

Since the daily game is the same for everyone, comparing scores is meaningful. Your 8/10 vs your friend's 6/10 means you genuinely knew those matchups better.

What Is the NUT Score?

One of the stat categories in NUT Check is the NUT Score — Baseball Nut's signature metric. NUT (Net Unbiased Total) measures how many wins a player adds to their team using only hitting and pitching data. No unreliable defensive metrics, no opinion — just the numbers.

When NUT comes up as the category in NUT Check, you're essentially guessing which player had more career value. It's the ultimate test of whether you understand who actually mattered most on the field.

Learn more about how the NUT Score works →

Why We Built NUT Check

Baseball has the richest statistical history of any sport. Over a century of data, thousands of players, every at-bat and every pitch recorded. But most fans only know a fraction of it. We wanted to build something that makes exploring that history fun — not a textbook, not a quiz show, but a game you actually want to play every day.

NUT Check is that game. It takes 2 minutes to play, you learn something every round, and the daily challenge gives you a reason to come back tomorrow. Whether you're a lifelong baseball fan or just getting into the sport, it meets you where you are — the early rounds are forgiving, and it only gets hard if you're doing well.

Play NUT Check — Free, No Account Required

NUT Check is completely free. No account needed, no ads, no paywalls. Just open it and play. It works on any device — phone, tablet, or desktop.

Play NUT Check now →

Frequently Asked Questions

Is NUT Check free?

Yes. NUT Check is completely free to play with no account required. There are no ads and no paywalls.

How often does the daily game change?

A new Daily NUT Check is available every day at midnight. Each day features a randomly selected decade and stat category with 10 rounds of matchups.

Can I play old daily games?

Yes. NUT Check keeps a 7-day archive of past daily games. You can go back and play any game from the last week. Archive games don't count toward your day streak.

What decades are available?

NUT Check covers 13 decades: 1900s, 1910s, 1920s, 1930s, 1940s, 1950s, 1960s, 1970s, 1980s, 1990s, 2000s, 2010s, and 2020s. Each decade has 50 hitters and 50 pitchers.

Are the stats accurate?

Yes. All career stats are pulled directly from the MLB Stats API. NUT values are calculated using the same methodology used across all of Baseball Nut.

How is NUT Check different from other baseball trivia games?

Most baseball trivia games ask you to recall random facts. NUT Check tests your feel for player value — you need to know roughly where players fall in each stat category. It's less about memorization and more about baseball intuition. The difficulty scaling also means the game adapts to your skill level.