Division Structure

Divisions describe what your verified history supports—pace on standard qualification distances—not which races you may enter, which career level you defend, or wildcard eligibility (Level calculation, Part VI).

Each league (RUN, SWIM) ships its own division catalog. This page describes the structure; RUN threshold tables are in Division groups. SWIM codes, units, and qualification paths are in the Swimming appendix.

What a division is

In a league, URX places athletes into divisions: peer groups for season storytelling, division rating, and cup competition among comparable profiles. The RUN league ships seventeen divisions, each with a code, rank, and qualification rules (Division groups).

Division code

A division code is two letters, or T for the training tier ( RUN convention):

• The first letter reflects pace on the qualification distance (which letter band applies).
• The second letter reflects the qualification distance length (for example marathon vs half vs 10 km vs 5 km on RUN).

Together, the code identifies both how fast and over what distance you have proven yourself in verified data.

Division rank

Division rank orders divisions from strongest to broadest cohort: rank 1 is the highest (AA on RUN), rank 17 is the lowest (T). A higher division (numerically lower rank) means a higher verified performance bar for that code’s qualification path.

League tiers (grouping of codes)

RUN divisions group into five league tiers (names are product labels):

Exact pace and distance thresholds per code are listed in Division groups for RUN; URX may tune numbers in the product while keeping this structure. SWIM tiers and codes follow the Swimming appendix.

What division does not do

• Division does not replace career level as the race entry gate (Level-Based Access, Part III).
• Division does not change QLF→PRO-I promotion math or defense bars (Level calculation, Part VI).

What division does do

• Division drives league placement and division rating—who you are grouped with for season and league surfaces (Global ranking, League standings context).

Qualification, invitation, and moves (summary)

• You qualify by publishing a verified activity that meets the qualification thresholds for the target division (Division groups on RUN; Swimming for SWIM).
• After verification, if your result supports a different division than your current one, URX may issue an invitation to join that division—you accept or decline.
• Changing division when invited is unlimited by count; promotion means moving to a higher division (lower rank number), demotion to a lower division (higher rank number). You cannot roll back a change without qualifying again.

See also: Division groups; Level calculation; Running; Swimming.