Late Registration.

NewTon DC Tournament Manager v4.2.8 — March 13, 2026

Overview

NewTon DC Tournament Manager Version 4.2.8 introduces Late Registration — a controlled, operator-facing tool in the Dev Console that allows a new player to join a tournament already in progress.

Late Registration

Tournaments don't always go to plan. A player drops out last minute, a substitute arrives after the draw, or someone simply shows up late. Late Registration gives the operator a safe, structured way to add a player mid-tournament without compromising bracket integrity.

What it does

A new player is added to the tournament and placed in a randomly selected eligible walkover spot in Frontside Round 1. The player is registered as paid and participates from that point forward — as if they had been part of the original draw.

What makes it safe

No live or completed downstream matches are touched. The tool identifies which walkover slots are still eligible — meaning neither the winner path nor the loser path from that slot has a live or completed match downstream. Slots that would affect an in-progress match are blocked entirely.
Placement is random. The new player is placed in a randomly chosen slot among the eligible ones. The operator cannot pick a slot, which removes any opportunity for a convenient bracket edit.
Confirmation gate. Before anything is written, the operator must type the player's name exactly to confirm. This prevents accidental registration.
Re-validation at execution time. If a match goes live between the eligibility check and the confirmation step, the tool re-validates before placing the player. A slot that has become ineligible in the meantime will be caught.
Audit trail. A Late Registration entry is recorded in the transaction log with the player name, match, and timestamp. The operator can always see what happened and when.

When it cannot help

If no eligible slots exist — because all walkover spots have been blocked by live or completed downstream matches — the tool refuses and explains why. Blocked slots can be freed by stopping or undoing the relevant matches, but all affected matches will need to be replayed from the beginning.

Finding It

The Developer Console is intentionally tucked away — it is an operator tool for edge cases, not a day-to-day feature. To make it easier to find when it is actually needed, a "Player arrived late?" button now appears at the bottom of the Tournament Players list whenever a tournament is in progress.

Clicking it opens a dialog that explains what Late Registration does and how to access the Developer Console: enable it in Global Settings, then open it by clicking the version number in the lower-right corner of the Tournament Bracket.

Files Changed

js/analytics.js — Late Registration command (Stages 1–3)
js/player-management.js — "Player arrived late?" button and info dialog
js/bracket-rendering.js — refreshTournamentUI save fix
tournament.html — Late Registration info modal, Late Registration pointer in "Tournament Already in Progress" modal
CHANGELOG.md — v4.2.8 entry added

Migration from v4.2.7

No migration required. Fully compatible with all existing tournaments and saved configurations.

NewTon DC Tournament Manager v4.2.8 — Late Registration.

Download v4.2.8

Previous Releases

Latest release
v4.2.7 — March 13, 2026 — Sitemap, font loading fix, and Get Started section.
v4.2.6 — March 12, 2026 — Undo system bug fix, Late Registration eligibility checker, and robots.txt.
v4.2.5 — March 11, 2026 — Landing page improvements and a Bracket Editor placeholder in the Developer Console.
v4.2.4 — March 10, 2026 — Proper Single Elimination match length configuration and colour-coded Chalker leg averages.
v4.2.3 — March 10, 2026 — Landing page redesign with retro comic theme by Nano Banana.
v4.2.2 — March 9, 2026 — Landing page fix, cleaner card layout.
v4.2.1 — March 8, 2026 — Cleaner cards, clearer brackets, better discoverability.
v4.2.0 — March 3, 2026 — Single Elimination: one shot, no second chances.

For older releases, see the GitHub releases page.