Why does my score start at 501?

501 is the standard starting score for a singles leg in professional and league darts. Each player throws to reduce 501 to exactly zero, and most formats require the final dart to land in a double (double-out).

What counts as a bust?

A visit busts if it would take your remaining score below zero, or leave you on exactly one, because one cannot be finished with a double. On a bust your score returns to what it was at the start of that visit.

What are bogey numbers?

Bogey numbers are scores from which no valid three-dart double-out finish exists: 169, 168, 166, 165, 163, 162 and 159. The tool flags these so you know to set up a different finish.

Does this verify my double-out?

It tracks the arithmetic of the leg and suggests a checkout combination, but it cannot see which segment your dart hit. You still need to land the called double to legally finish the leg.

Can I undo a mistake?

Yes. The Undo button removes the most recent visit and restores the previous remaining total, so a mis-typed score is easy to correct without resetting the whole leg.

Darts Leg Score Tracker

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A leg of darts is simple arithmetic under pressure: start at 501 and subtract every visit until you reach exactly zero on a double. This tracker keeps that running total for you, flags bust throws, and tells you the standard checkout once you are in finishing range.

How it works

Each visit (up to three darts, scoring 0 to 180) is subtracted from your remaining score:

remaining = 501 − sum of all valid visits

A visit is a bust — and is not deducted — when:

remaining − visit < 0      (overthrow)
remaining − visit == 1     (cannot finish on 1)

When your remaining score is 170 or less and not a bogey number, the tool looks up the conventional three-dart checkout (for example T20 T20 Bull for 170, or D20 for 40) from the standard finishing table used by professional players.

Tips and notes

The seven bogey numbers — 169, 168, 166, 165, 163, 162 and 159 — have no three-dart finish, so aim to leave a “good” number such as 170, 160, 100, 40 or 32. The tool also reports your three-dart average, the headline figure used to compare players: a club player sits around 45-60, while top professionals push past 100. Use Undo to fix a mistyped visit rather than resetting the leg.