# How are Event ID's structured?

## What is an Event ID?

An event ID is a 3-part unique event identifier. The DDE uses them to identify each single event that happens on the platform.

## Example Event ID

Example ID: 2024-0083-MD013

**2024**\
This is the year the event takes place

**0083**\
This is the Competition ID

**MD013**\
This is the match ID. Match IDs are structured as follows:

MD - The draw that the match is from\
013 - The place of the match within the draw

See below for a full breakdown of these for the **main** draws within tennis tournaments

| Acronym | Type                                       |
| ------- | ------------------------------------------ |
| MS      | Men's Singles                              |
| QS      | Qualifying Men's Singles                   |
| MD      | Men's Doubles                              |
| QD      | Qualifying Men's Doubles                   |
| LS      | Ladies' Singles                            |
| RS      | Qualifying Ladies' Singles                 |
| LD      | Ladies' Doubles                            |
| RD      | Qualifying Ladies' Doubles                 |
| XD      | Mixed Doubles                              |
| MX      | Mixed Doubles - Hopman Cup/United Cup only |

| Tournament Round | DDE Round | Event ID's |
| ---------------- | --------- | ---------- |
| Final            | Round 1   | 001        |
| Semi Final       | Round 2   | 002 & 003  |
| Quarter Final    | Round 3   | 004 to 007 |
| Round of 16      | Round 4   | 008 to 015 |
| Round of 32      | Round 5   | 016 to 031 |
| Round of 64      | Round 6   | 032 to 063 |
| Round of 128     | Round 7   | 064 to 128 |

N.B, the above are valid for the main draw of knockout tournaments. Qualifying draws will not end in a single match (001) - there will be 2 or more qualifiers progressing through to the main draw.

Also, round robin tournaments will of course have a slightly different structure to the above, depending on how big the groups are. However, the Final will always be 001 and the Semi Finals 002 and 003 within a Round Robin tournament.