MacTuffX Sheffield

JUL

26

2026

Test your endurance at MacTuffX Sheffield with a variety of interval based running events. Choose between solo, doubles, or relay formats featuring repeated 400m or 800m distances in this summer competition.

Sun 26 Jul 2026

Sheffield, Yorkshire and The Humber

Registration

Relay X (10x400m) Doubles X (10x400m) Solo X (10x400m) Solo 2x (10x800m) Relay Xx (10x800m)

Always double-check with the organizer's website! This page may contain affiliate links.

MacTuffX Sheffield 2026

MacTuffX Sheffield takes place in July 2026, offering a series of interval-based running events for participants aged 18 and over. The competition structure focuses on repeated distance segments, with formats available for individual competitors, pairs, and relay teams. The event utilizes different distance intervals to categorize the various entry options.

Participants can choose from several event formats based on the total distance and team size:

Solo X: 10 rounds of 400m distance intervals.
Solo 2X: 10 rounds of 800m distance intervals.
Doubles X: Pairs competing in 10 rounds of 400m intervals.
Doubles 2X: Pairs competing in 10 rounds of 800m intervals.
Relay X: Teams participating in 10 rounds of 400m intervals.
Relay XX: Teams participating in 10 rounds of 800m intervals.

All registered entrants must be at least 18 years old on the day of the event. The competition allows for solo participation or group registration via the doubles and relay categories. Each format follows a specific repetition structure of ten sets of either 400m or 800m. Visit the organization's website for the most recent information.

8 km

Solo 2x (10x800m)

8 km

Relay Xx (10x800m)

8 km

Doubles 2x (10x800m)

Relay X (10x400m)

Doubles X (10x400m)

Solo X (10x400m)