Earth Day Challenge
April 22
| Name | Age | Location | Country | Affiliation | Distance |
|---|---|---|---|---|---|
| Henry Nicholson | 21 | GBR | 8,276 | ||
| Jon Nicholson | 57 | NS | CAN | 5,170 | |
| Phil Nicholson | 55 | GBR | 12,207 | ||
| David Nicholson | 58 | USA | 4,330 | ||
| Misti Nickel | 45 | AL | USA | U.S. Air Force | 4,744 |
| Justin Nickel | 46 | Montgomery, AL | USA | Fitness Matters | 7,015 |
| Jean Nicklas | 91 | Tulsa, OK | USA | 6,659 | |
| Kent Nickle | 59 | Albuquerque, NM | USA | 8,020 | |
| Stephen Nickle | 65 | San Antonio, TX | USA | 5,978 | |
| Stephen Nicklin | 57 | GBR | 5,000 | ||
| Frederic Nicod | 62 | Vaugneray | FRA | Société Nautique de Sauvetage de SAINT-FONS | 13,743 |
| Lena Nicolai | 59 | Wallingford, CT | USA | 12,177 | |
| MENNA Nicolas | 64 | FRA | 12,685 | ||
| Arnaud Nicolay | 42 | FRA | 10,000 | ||
| Halvdan Nicolaysen | 65 | Oslo | NOR | 10,000 | |
| jacob nielsen | 35 | DEN | 12,284 | ||
| Heber Nielsen | 78 | Hingham, MA | USA | Hingham Maritime Center, MA | 8,331 |
| Torben Henrik Nielsen | 66 | Holbæk | DEN | Age Without Limits | 5,576 |
| Doug Nielsen | 58 | Ottawa, ON | CAN | 5,533 | |
| Søren Nielsen | 48 | DEN | 5,000 | ||
| Mathias Nielsen | 35 | Copenhagen | DEN | 2,060 | |
| Peer Nielsen | 71 | Whanganui | NZL | Union Boat Club NZL | 11,259 |
| Páll Nielsen | 38 | Tórshavn | FRO | 5,687 | |
| Thomas friis Nielsen | 54 | Aarhus | DEN | Ergathlon | 30,864 |
| Derrick Nielsen | 58 | USA | 7,523 | ||
| Jens NIelsen | 49 | Bagsværd | DEN | 3,979 | |
| Jorma Niemi | 63 | Vantaa | FIN | 15,000 | |
| Tony Niemira | 60 | GBR | 5,000 | ||
| Nick Nienhuis | 43 | ON | CAN | 6,453 | |
| Detlev Nienhuysen | 59 | La Salle, MB | CAN | 5,000 | |
| Der Herr Niessinger | 43 | Hamburg | GER | 10,000 | |
| Mark Nieto | 55 | AK | USA | Army National Guard | 5,643 |
| Tanya Niezgoda | 58 | USA | 4,521 | ||
| Emily Niezgoda | 24 | USA | 8,200 | ||
| Dimitri Nikas | 57 | Jamesport, NY | USA | 6,618 | |
| Epameinondas Nikas | 40 | London | GBR | 10,000 | |
| Yuriy Nikitin | 46 | Dnipro | UKR | Dnipro Rowing Club | 6,120 |
| Eckhard Niklaus | 64 | Somerset West | RSA | 5,515 | |
| Anton Nikolaiev | 39 | GER | CrossFit Linchpin | 12,659 | |
| Kateryna Nikolaieva | 38 | GER | 4,635 | ||
| Rita Nilsen | 52 | Revetal | NOR | 6,934 | |
| Johan Nilsson | 41 | Arvika | SWE | 732 | |
| Lars Nilsson | 44 | SWE | 7,800 | ||
| Ian Nimmo | 85 | Innerleithen | GBR | Team Diamonds | 6,367 |
| Hai Tao Ning | 45 | CHN | 10,000 | ||
| Nenad Ninkovic | 38 | USA | 5,634 | ||
| jamieson ninneman | 42 | USA | 5,124 | ||
| Gabriel Ninonuevo | 65 | New City, NY | USA | 8,668 | |
| kanji nishijima | 72 | USA | 4,406 | ||
| Marian Nissen | 72 | Ochten | NED | 7,000 |