The 45-year-old covered around 300km during the week, starting at Bury St Edmunds Rugby Club and finishing at Headingley Stadium.
He finished his challenge yesterday (December 7), arriving at Headingley to greet supporters who had backed him.
Sinfield completed a set of at least 45km on each of the seven days, working in bursts of 7km.
The challenge was taken on to pay tribute to his late teammate and friend Rob Burrow, who died last year having been diagnosed with MND in 2019.
Sinfield said: "To the MND community and the people we've met on route, all through the last week, all through the past five years, to everybody we've met - it's an absolutely beautiful community. We've got to keep fighting for the MND community."
Here are 13 pictures taken on the final day of Sinfield’s latest fundraising challenge.
1. Kevin Sinfield 7 in 7
Kevin Sinfield after arriving at Headingley Stadium - the final stop. | Steve Riding
2. Kevin Sinfield 7 in 7
Kevin Sinfield sports binbags on his feet as he makes his way through flooded streets. | Danny Lawson/PA Wire
3. Kevin Sinfield 7 in 7
Kevin Sinfield braves the rain to charge towards the finish line. | Steve Riding
4. Kevin Sinfield 7 in 7
Kevin Sinfield is greeted by his son Jack at Headingley Stadium. | Steve Riding