Seattle CF StairClimb

Seattle CF StairClimb

The Seattle CF StairClimb is the 38th annual stair-climbing event held at T-Mobile Park in Seattle on September 16, 2026. The event takes place in the 300-level section of the ballpark and uses staircases for a timed climb in waves, with participants self-identifying their pace and faster climbers starting first.

There are two route options based on the number of stairs:

• Full route: up-and-down 1,800 stairs
• Half route: up-and-down 900 stairs

Registration is offered in tiered fees: an Early Bird rate of $45 available through June 30, 2026, a standard online registration rate of $65 with online registration closing on September 15, 2026, and a day-of registration rate of $75 once online registration has closed. Participants who raise an additional $100 beyond the registration fee receive a t-shirt; paying the $100 fundraising minimum by self-donation during registration is an option.

Age and participation rules are specified: participants under 14 are not allowed; minors aged 14 to 16 must be accompanied by an adult; those 16 and over may participate without an adult. The event supports the Cystic Fibrosis Foundation’s fundraising for research and care. Accessibility requests should be submitted at least three weeks before the event so accommodations can be arranged. Visit the organization's website for the most recent information.