Running

Ultramarathons to Watch in June 2026: Summer Race Roundup

June is a major month for trail and ultra running. Bay Area 100, Timberline Marathon, UTMB World Series: the summer races worth knowing about.

Trail runner ascending a steep mountain path through forest in golden hour light, viewed from behind mid-stride.

June is one of the busiest months on the trail calendar. Between summer ultras in North America and UTMB World Series qualifying events in Europe, there's no shortage of options for runners looking to test themselves before fall's major races.

June Race Calendar

  • Bay Area 100: June 13, Berkeley, CA — the region's marquee 100-mile trail ultra
  • Timberline Marathon & Half: June 6-7, Mount Hood, OR — iconic Pacific Northwest volcanic course
  • Lake Chabot Trail Challenge: June 7, Castro Valley, CA — half marathon and 5K trail options
  • UTMB World Series: new June stops in Europe and Asia

The Bay Area 100: Northern California's marquee ultra

The Bay Area 100 is one of Northern California's most established 100-mile trail ultras. The 2026 edition starts June 13 in Berkeley. The course traverses the ridgelines and regional parks of the Bay Area over 100 miles — demanding on elevation, with exceptional views of the San Francisco Bay. For West Coast runners, it's often a summer A-race or ideal preparation for major fall ultras.

Timberline Marathon runs June 6-7 on the slopes of Mount Hood in Oregon — an iconic course with late-season snow at elevation, views of Pacific Northwest volcanoes, and an atmosphere that's made it a regional benchmark for years.

UTMB World Series: qualifications in progress

For runners targeting major UTMB events in late summer and fall, June is a viable qualification window. The UTMB World Series runs qualifying events across Europe and Asia throughout the year, with accumulated points determining access to flagship races (UTMB, CCC, TDS, OCC) later in the season.

June offers a strategic window: race a UTMB World Series event, bank qualification points, and have time to recover before the August-September marquee races.

Key takeaways

  • June is a busy month for trail and ultra — Bay Area 100, Timberline Marathon, UTMB World Series qualifying events.
  • Good timing for a building-block race that tests endurance and race nutrition before fall.
  • UTMB-targeting runners: check which June stops offer qualifying points for your target race.
  • Heat will be a factor on most courses — plan hydration and pacing strategies accordingly.