The 2026 Race Calendar by the Numbers

The Short Answer

From May 16 to November 7, 2026, the Endurance Grid calendar held 19,607 races across all 50 states and 15 sports. Running made up 17,550 of them, two in three offered a 5K, and 13,002 were on a Saturday. The busiest single day was Saturday, September 19, with 757 races.

Based on 19,607 races held on the Endurance Grid calendar from May 16, 2026, when our race history begins, through November 7, 2026, as of November 8, 2026. We don't list every race in the US.

Races by Sport

Running is most of the calendar. Every other sport together made up about one race in ten.

Sport	Races held
Running	17,550
Triathlon	525
Trail Running	484
Road Cycling	344
Open Water Swimming	183
Mountain Bike	119
Obstacle Course Racing	70
Adventure Racing	56
Ultramarathon	54
Gravel Racing	49
Duathlon	46
Paddle Sports	40
Rucking	38
SwimRun	35
HYROX	14

Races by Month

October was the busiest full month on our calendar, with 4,917 races, and September was next, with 4,149.

Month	Races held
May (from May 16)	1,847
June	2,856
July	2,352
August	2,605
September	4,149
October	4,917
November (through Nov 7)	881

The Busiest Days

Saturday is race day. Of the 19,607 races, 13,002 were on a Saturday and 3,703 on a Sunday. The five busiest single days were all Saturdays in September and October: September 19 (757 races), September 12 (755), September 26 (751), October 3 (746), and October 17 (709).

The States With the Most Races

Ohio had the most races on our calendar, with 1,333, followed by Pennsylvania (1,202), Texas (1,181), Michigan (1,056), New York (923), and Florida (885). Every state had at least one.

Distances

The 5K is the most common distance by far: 13,127 races, two in three, offered one. Next were the 1 mile (3,347), the 10K (2,757), and the half marathon (1,722).