▶/TOURNAMENT
ENGINE LIVE
Build a bracket.
Settle it for good.
Pick your teams across any era. The engine runs every game — full box scores, line scores, win probability — and crowns a champion. Solo or with friends. Unlimited brackets, free forever.
No account needed for solo. Multi-user brackets need a free account.
▶HOW A BRACKET RUNS
4 · 8 · 16 · 32 teams · single-elim · best-of-1, 3, 5, or 7
▶TWO WAYS TO BRACKET
Run it solo, or rope your group chat in.
Solo bracket
Just you and the engine. Pick the teams, pick the format, watch it play out. Save your bracket to a shareable link — no sign-in required.
- Up to 8 teams, any era, any sport
- Engine sims every game with full box scores
- Sharable link to show off the result
- Everything you build saves locally for 30 days
Multi-user bracket
Commish a bracket for your group. Invite up to 32 simmers. Everyone makes picks before lock — engine runs the games, leaderboard ranks the picks.
- Up to 16 teams, up to 16 participants
- Invite by link or email · picks lock at first sim
- Live leaderboard — accuracy + bracket survival
- Group chat thread per round, screenshot-ready box scores
- Run as many brackets as you want, side by side
▶THE BUILDER · PREVIEW
Three knobs. One link. Bracket runs.
Set size, format, era rules — drop teams in, share the link, walk away. Every game runs through our cross-era simulation engine.
①SIZE
How many teams?
Solo or multi · 7 games
②FORMAT
How long is each round?
③ERA
What rules apply?
Home team era
Every game is simulated under the rules of the home team's season — the higher seed's era determines pitching, physicality, and ballpark factors.
YOUR BRACKET
8-team · BO1 · Home era
Ready to draft teams. Estimated runtime: ~3 min.
▶HOW IT WORKS
From “let’s settle this” to a champion in four steps.
STEP 01
Configure
Pick size, format, era rules. Solo or invite friends.
STEP 02
Draft teams
Search any team from any era. Tap to add to a bracket slot.
STEP 03
Make picks
You (and your group) pick a winner per matchup before lock.
STEP 04
Engine runs
Sims every game · full box scores.
▶DRAFT TEAMS · ANY ERA
Search every team that ever was. Drop them in.
Browse by era, dynasty, sport, or one-off greatness. Tap to add. Every team comes pre-loaded with its real-season roster, stats, and ratings.
Shows up at the top of the bracket page and in shareable links.
QUICK PICK
Need someone else? Type a year above to load every baseball team for that season.
YOUR BRACKET
8 slots · 0 filled
- #1Drop a team here
- #2Drop a team here
- #3Drop a team here
- #4Drop a team here
- #5Drop a team here
- #6Drop a team here
- #7Drop a team here
- #8Drop a team here
▶THE OBVIOUS QUESTIONS
What you’re probably wondering.
Do I need an account?
Solo brackets need no account — pick teams, run the bracket, share the link. Multi-user (inviting friends and tracking picks against the engine) needs a free account: email + handle, no card.
What's the difference between solo and multi-user?
Solo is just you and the engine — set the format, watch it play, share the result. Multi-user lets you invite up to 32 simmers, locks picks at first sim, and runs a live leaderboard so the group chat has receipts.
How big can a bracket be?
4, 8, 16, or 32 teams. Single-elim, with rounds set to best-of-1, 3, 5, or 7. Higher seed gets home-field by default.
Cross-era — how does that actually work?
Era-blended rules normalize hitter/pitcher gaps, ballpark factors, and physicality so a '27 Yankee can face a '04 pitcher and the result still passes the smell test. You can also lock to Period (each team plays under its own season's rules) or Modern (everyone plays under current rules).
Can I save and re-run a bracket?
Solo brackets save locally for 30 days and export to a shareable link any time. With a free account they save forever, side-by-side with the rest of your work.
Is it free?
Yes. Unlimited brackets. No card. We never lock the engine behind a paywall.
Stop arguing.
Build the bracket.
Solo, in 60 seconds. With your group, in two. Either way, the engine settles it.