Opening Day Survival Guide for Pool Commissioners

Tomorrow morning, the US Open starts and your pool goes from setup to live. Here's the commissioner's guide to opening day and the two weeks after it: what happens at the first ball, what the platform handles without you, the edge cases members will ask about, and the doors that stay open for latecomers.

At the first ball, three things happen

The moment the tournament's first match starts on Sunday:

1. Every Full Draw bracket locks. All 127 picks, final. Same for Bracket Scores, winners and set-score calls alike. Until that moment, members can still revise freely — after it, the brackets are what they are.
2. Survivor Round 1 locks. Each later round locks at its own first match, so survivor stays a live, round-by-round game all fortnight — with an email reminder before every deadline.
3. Your job effectively ends. Everything from here — grading picks, moving the leaderboard, reminding survivor players — is automatic. The rest of this post is about knowing the rules, not doing any work.

What runs itself (so you don't)

Every match is scored automatically as it finishes. Bracket points land per the doubling ladder — 5 for Round 1 up through 320 for the champion — survivor picks are graded win-or-out, and the leaderboard updates live. You will not enter a result, settle a scoring dispute, or open a spreadsheet at any point. If someone asks "who's updating this?", the answer is: nobody, that's the point.

The questions members will actually ask

Two weeks of tennis produces the same handful of rule questions in every pool. Here are the answers, so you can paste instead of improvise:

"My player retired mid-match / got a walkover — what happens?" Tennis rules apply: whoever advances counts as the winner. In survivor, if you picked the player who advanced, you're safe; if your player is the one who withdrew, the pick loses. In a bracket, a pick on the advancing player scores full points. The one wrinkle is Bracket Scores: a retirement or walkover voids the exact-set-score bonus for that match only — winner points still count in full.

"I forgot my survivor pick." A missed pick eliminates exactly like a losing one. That's the format; reminders went out before the deadline. (Commissioners: sympathy optional, consistency mandatory.)

"Can I change a pick?" Any pick can be changed until it locks — and locked is locked. Brackets froze at the first ball; each survivor round freezes at that round's first match.

"Two of us are tied on points." Bracket ties are broken by the tiebreaker submitted with the picks: predicted total games in the final, closest to the real number without going over.

"Everyone left in survivor lost in the same round." The pool still crowns a winner. By default, members who made a pick that round beat anyone who didn't — a pick beats a no-pick — or the commissioner can have everyone who fell together split it. Eliminations only bite when someone survived the round, so the pool always ends with a champion or co-champions.

Late doors that are still open

The pool that didn't get organized isn't dead. Two formats are built for exactly this:

• Sweet 16 hasn't even started. The 15-pick, Round-of-16-onward bracket opens once the R16 field is set — about a week in — and locks at the first Round-of-16 match. You can create a Sweet 16 pool today, or midway through week one, and be early.
• Survivor pools can start mid-tournament, any time up until the Round of 16 begins. The pool simply starts at the next round — create one during the Round of 32 and that round becomes everyone's Round 1. Perfect for the group that catches the bug watching the first week's upsets.

And within an existing pool, new members can join with the same invite link right up to their format's lock. Someone hears about the pool Sunday morning? Autofill, three minutes, in.

Commissioner's notes for the fortnight

• Feed the chat, don't run it. The best thing a commissioner posts during week one is the leaderboard after a chaotic day. The platform makes the numbers; you provide the commentary.
• Don't relitigate the rules. Retirements, missed picks, tiebreakers — the answers above are the answers. Consistent beats clever, every time.
• Watch the survivor count. The slow drumbeat of eliminations is the best story your pool has. "14 alive after Round 2" is a better message than any highlight clip.
• Money's done, right? If you collected buy-ins during the week, you're finished with money until you pay winners out. If a straggler still owes, the paid/unpaid tracker is your enforcement arm — the pot never touches TennisPools either way.

Enjoy the part you built this for

Somewhere around mid-afternoon tomorrow, the first seed will drop a set to a qualifier, one-third of your pool's brackets will take their first dent, and the group chat will light up. That moment — the one where people who'd never watch a Round 1 match are suddenly living on every point — is the entire reason pools exist.

You did the setup. The scoring runs itself. Watch the tennis.

(No pool yet? One minute. The tournament runs through September 13 — and between Sweet 16 and mid-tournament survivor starts, you're less late than you think.)