John Wade Kelly (born November 19, 1984)La Sportiva: John Kelly; The Goldsboro News-Argus: Kelly-Lail. is an American endurance athlete who specializes in ultrarunning.

His fastest known times include that for the 268-mile Pennine Way, set in 2021.

Early life Kelly was raised in Morgan County, Tennessee, and graduated from nearby Oak Ridge High School in 2003. He was a good but not outstanding runner in high school, after which he did not compete in the sport for several years until 2013, when he ran the Marine Corps Marathon. After subsequently qualifying for the Boston Marathon, he decided to use ultramarathons and triathlons to maintain his fitness and motivation.

American ultras and triathlons In 2017, Kelly became the fifteenth finisher in the history of the Barkley Marathons. He completed the required five loops in a total time of 59:30:53, around half an hour inside the time limit for the full course. It was his third attempt at the race, having managed three loops in 2015 and four in 2016.Trail Runner Magazine: Born and Bred in the Briars; Canadian Trail Running: 2017 Barkley Marathons features one finisher, heartbreak for Gary Robbins; Run Washington: Looking back at John Kelly’s Barkley Marathons finish. Later in 2017, Kelly won the Road Runners Club of America National Ultra Championship at the Lookout Mountain 50 Miler.Road Runners Club of America: RRCA National Ultra Championship Comes to Lookout Mountain.

The next year, he set a course record of 23:48:00 at the Wild Oak Trail Run in VirginiaiRunFar: This Week In Running: February 19, 2018. and was an age group champion at the ITU Long Distance Triathlon World Championships. Thereafter, Kelly became a professional triathlete for just one race, Ironman Arizona, before turning his attention more closely to ultrarunning.Triathlete: This Triathlete Will Make His Pro Debut at Ironman Arizona—And Then Retire.

He won the Franklins 200 Mile race in Texas in February 2019 in a time of 60:53:12.iRunFar: This Week In Running: February 11, 2019; UTMB World: Franklin Mountains Trail Run 2019.

British races and records Soon after his Franklins win, Kelly moved with his family to the UK, and in late May 2019, he began an attempt at what he termed the Grand Round. This involved consecutively running the three best-known fell running rounds (the Paddy Buckley in Wales, the Bob Graham in England and the Ramsay in Scotland) and getting between them by cycling. On this occasion, Kelly was able to complete the Paddy Buckley Round, cycle to Keswick, and finish the Bob Graham Round. He then began the cycling section towards Fort William, but safety concerns relating to tiredness led him to abandon the challenge.Run247: John Kelly Takes On The Grand Round.

In January 2020, Kelly took first place at the Spine Race, the route of which largely follows the Pennine Way. He completed the course of approximately in a time of 87:53. Late in the race, he was challenged by Jayson Cavill, but Cavill was forced to drop out due to tendonitis and Kelly was ultimately left with a comfortable margin of victory.Grough: John Kelly takes Spine Race victory by a margin of more than 30 miles; UKHillwalking: John Kelly Wins The 2020 Montane Spine Race.

Kelly revisited the Pennine Way in July the same year. With more daylight and the expectation of better weather than in the Spine Race, as well as not having to carry as much equipment, he aimed to beat Mike Hartley’s 1989 record of 65:20. Despite losing time against his schedule in the second half of the run, Kelly was fast enough to set a new record of 64:46. He ran the route in the south to north direction, from Edale to Kirk Yetholm, in contrast to Hartley's north to south traverse.UKClimbing: John Kelly Breaks Pennine Way Fastest Known Time. Although Hartley's best had stood for over thirty years, Kelly's record of 64:46 only lasted eight days until it was beaten by Damian Hall who completed the Way in 61:35.Run247: Damian Hall: The quickest man on the Pennine Way.

In August 2020, Kelly returned to the Grand Round, which involves a running distance of about with around of elevation gain, as well as over of cycling. He finished the route in a total time of 130:43. This was the first time that the Grand Round had been completed. In 1990, Mike Hartley had run the three rounds in a total time from start to finish of 86:20, but he had used motorized transport between the rounds rather than cycling.UKClimbing: John Kelly Completes Grand Round; FionaOutdoors: Ultra runner John Kelly completes his 'Grand Round'. Due to the connections with Hartley, Kelly referred to the Pennine Way run and the Grand Round collectively as the Hartley Slam.Ultrarunner Magazine: Taking on the Hartley Slam – John Kelly Interview.

Kelly made a further attempt on the Pennine Way in May 2021, hoping to avoid the gastrointestinal problems which had restricted him the previous year. This time he ran the Way from north to south, as Hartley and Hall had done on their record runs. Despite periods of heavy rain, Kelly finished the in a time of 58:04, reducing the record by over three hours.Trail Runner Magazine: John Kelly Sets Astonishing Record On The 260-Mile Pennine Way; Runner's World: John Kelly reclaims Pennine Way FKT; BBC: Ultra marathon record-breaker shares secrets of Pennine Way success.

In July 2021, Kelly set out to run a circuit of the 214 Wainwrights in the Lake District but foot problems and high temperatures caused an end to the undertaking.Grough: John Kelly abandons Wainwrights record attempt on third day of challenge. Shortly before returning to the United States, he attempted the Wainwrights a second time in May 2022 and completed the whole route in a record time of 5 days, 12 hours, 14 minutes, beating the previous record set by Sabrina Verjee by 11 hours and 35 minutes.

Return to the US Kelly was tenth man in the Hardrock 100 in 2022.iRunFar: 2022 Hardrock 100 Results: Dauwalter and Jornet Smash Course Records. Later in the year, in a change to his accustomed distance and terrain, he ran a time of 2:26:50 at the California International Marathon.iRunFar: This Week In Running: December 5, 2022.

In March 2023 Kelly finished the Barkley Marathons for a second time, with a time of 58:42:23. In March 2024 Kelly became the second three-time finisher of the Barkley Marathons with a time of 59:15:38. He is the third person to complete the course more than once.

Data science career Kelly has a M.S. from North Carolina State University and a Ph.D. in electrical engineering and machine learning from Carnegie Mellon University. He works as Chief Technology Officer of Envelop Risk Analytics, having previously been the Technical Lead for Corporate Data Analytics Lockheed Martin as well as the Director of Analytics at QxBranch.

List of Fastest Known Times (FKTs) The following table includes all of Kelly's Fastest Known Times (FKTs), whether they are still the FKT on the given route or have since been bested (by either Kelly or another athlete). The list is accurate as of May 29, 2025, while Kelly was in the midst of attempting to set the FKT for the Appalachian Trail. + John Kelly's Fastest Known Times (FKTs) Route Route Variation Style Time Date Current Status Long Trail Standard route Supported 4d 4h 25m 50s 2023-07-03 No longer standing Wainwrights 214 Open course Supported 5d 12h 14m 43s 2022-05-07 Still standing Pennine Way Standard route Supported 2d 10h 4m 53s 2021-05-17 Still standing Mendip Way West Mendip Way Unsupported 3h 49m 5s 2021-04-10 No longer standing Community Forest Path Loop Unsupported 7h 6m 43s 2021-02-27 No longer standing Big 3 UK Rounds (Paddy Buckley Round, Bob Graham Round, and Charlie Ramsay Round) Grand Round (cycling between) Supported 5d 10h 43m 0s 2020-08-21 Still standing Pennine Way Standard route Supported 2d 16h 46m 0s 2020-07-16 No longer standing Somerset Three Peaks (Maes Knoll, Knowle Hill, and Blackberry Hill) Standard loop Unsupported 1h 56m 21s 2020-06-07 Still standing Rock Creek Trail Standard route Supported 5h 8m 51s 2019-02-23 Still standing Smokies Challenge Adventure Run (S.C.A.R.) S.C.A.R. Unsupported 15h 31m 37s 2018-03-18 No longer standing AT Four State Challenge (PA, MD, WV, VA) Standard route Supported 6h 39m 51s 2018-01-20 No longer standing

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