How to run a March Madness pool at work

Somebody in every office runs the bracket. It is rarely the person who knows the most about college basketball, it is the person who did it last year. The job looks small in February and turns into forty entries, a spreadsheet, and one argument about whether an entry that arrived after tipoff counts.

The 2027 tournament has a new shape, so start with the dates.

Pick a format

Four formats work in an office, and they differ in how much basketball knowledge they demand and how much admin they cost you.

Resist running two. A bracket for the enthusiasts plus squares for everyone else sounds generous and dilutes both: two sets of standings, two sets of rules questions, and a channel where nobody knows which thing is being discussed. Run one properly this year and the other next March.

Scoring by hand versus scoring automatically

Choose the scoring system before the field is announced, and unless you have a reason not to, choose the doubling ladder: 1 point in the round of 64, then 2, 4, 8, 16 and 32 in the championship game.

A perfect bracket is 192, and every round is worth 32 in total. Somebody who had a rough Thursday is still live on the second weekend, so the pool keeps its audience. That one property is why the doubling system outlived every clever alternative.

Two variants are worth knowing. An upset bonus adds the difference in seeds whenever a lower seed wins, so calling a 12 over a 5 is the round value plus 7, and it makes the first two days loud. A seed-based systemadds the winning team's seed number to the round value instead, with less arithmetic. Adding either one after the bracket is out is the problem, not which you pick.

Scoring by hand survives on two habits. Freeze the entries into one file at tipoff and never edit it again, then score one round at a time and post the table straight away, because a visible table beats a perfectly accurate one. Write down every ruling you make while you are at it, so the same question cannot get a different answer on day nine.

Prizes without money

The moment there is a pot, somebody has to hold the money, somebody has to chase the two people who did not pay, and HR has a fair question about company time. The pot was never why anybody played. Make the prize recognition instead, which scales to 400 people without anybody collecting anything.

• A trophy that lives on a desk. Cheap, absurd, and fought over harder than cash. It comes back next March.
• A company-funded charitable donation to a cause the winner chooses. Nobody paid in, so nobody won a pot.
• Time. An early finish on a Friday, or a meeting-free afternoon. Managers approve this without a form.
• A named title in the channel for a year. Free, and the reigning champion brings it up unprompted every March.

The legality question

A pool where people pay to enter and the money goes to a winner is, in most US states, gambling, and happening at work does not change that. Enforcement against small office brackets is vanishingly rare, but plenty of employers ban them by policy and plenty of workplaces have had an awkward conversation about one. Remove the entry fee and the problem mostly disappears: with no consideration there is no wager, only a free contest. That is why every recommendation here is free to enter. The longer version is in our guide to whether office pools are legal. None of this is legal advice, and a company policy beats all of it.

Running it in Slack

Be clear about where this stands. Office Rivals does not run March Madness brackets yet. They are being built for the 2027 tournament. Put your name on the list on the March Madness page and you will get one email the day it opens.

What already runs inside Slack and Google Chat is the same machinery pointed at other sports: NFL Pick'em and Survivor, the Premier League, the Champions League and Formula 1. That shape is worth knowing, because it is the shape a bracket pool takes.

• The channel is the pool. One command enrolls everyone in it, and anyone who joins later is enrolled too.
• Picks arrive as a private message. No login, no separate site, nothing for players to install.
• Scoring runs without a commissioner, and results are revealed on weekday mornings, never at the weekend.
• No money is anywhere in it. No entry fee, no pot, no payout. That is a decision, not a missing feature.

The ten-minute version

1. 01

   Invite people early

   Post the invitation the week before Selection Sunday. Say who can play, that it is free, and that nobody needs to know anything about college basketball to enter.

2. 02

   Pick exactly one format

   Bracket, survivor, squares or a daily pick'em. Running two at once doubles the admin and splits the conversation.

3. 03

   Write the rules down before the field is announced

   Scoring per round, the tiebreak, the deadline, and what happens to a late entry. Rules written after the bracket is public always look like they were written to suit somebody.

4. 04

   Make the first tipoff the deadline

   Anything later means somebody is entering with results already on the board, which is the fastest way to lose the room.

5. 05

   Collect entries in one place

   One channel, one thread, one form. Entries arriving by email, direct message and a photo of a printout are how a commissioner ends up transcribing brackets at midnight.

6. 06

   Score every night, not every weekend

   Ten minutes a night keeps the standings believable. A Sunday catch-up means two days of people asking where they are.

7. 07

   Post the table where the conversation is

   After every round, put the standings in the channel with one line about who moved. A pool nobody can see the standings of is just a form people filled in once.

Skip step three and you spend the last week of March defending decisions instead of enjoying the tournament. Skip step six and the pool stops existing at about the point it does every year. The version where the last four steps are not your job is what we are building for 2027: join the March Madness list, or read twenty ideas beyond the bracket if a bracket is not right for your office at all.