Earth Day Challenge
April 22
| Name | Age | Location | Country | Affiliation | Distance |
|---|---|---|---|---|---|
| Fabrice Martin | 39 | FRA | 8,367 | ||
| Jayson Martin | 34 | Phoenix, AZ | USA | 4,018 | |
| Olivia Martin | 42 | Cornwall | GBR | 7,000 | |
| Jim Martin | 60 | Lake Forest, CA | USA | University of California, Irvine (Alumni) | 4,009 |
| Patrick Martin-Breen | 45 | NJ | USA | 10,000 | |
| Marcella Martinelli | 57 | ITA | 3,837 | ||
| Carlos Martinez | 53 | USA | 18,454 | ||
| Joel Martinez | 50 | USA | 6,026 | ||
| Jaime Martinez | 44 | Austin, TX | USA | 10,000 | |
| Ted Martinez | 47 | Rio Rancho, NM | USA | 6,433 | |
| ANTHONY MARTINEZ | 41 | Alexandria, VA | USA | Air National Guard | 9,055 |
| Marcos Martinez | 60 | Lebanon, OR | USA | 5,000 | |
| Nestor Martinez | 22 | Orange, NJ | USA | St. Benedict's Prep | 7,793 |
| Ignacio Martinez | 46 | MEX | 4,831 | ||
| Francis Martinez | 50 | ONDARA | ESP | 10,000 | |
| Alvarito Martinez Bravo | 50 | Valencia | ESP | 12,220 | |
| Anxo Martínez Fernández | 33 | ESP | 29,253 | ||
| dale martini | 73 | Bolivar, OH | USA | 5,229 | |
| roberto martini | 58 | roma | ITA | Fibra Rowing Team | 12,409 |
| Serena Martino | 41 | Maastricht | NED | 5,000 | |
| Mark Martino | 71 | USA | 6,018 | ||
| Daniel Martyn | 39 | St Thomas, ON | CAN | 6,079 | |
| Andrey Martynovich | 61 | AIN | 16,000 | ||
| Nicole Marud | 53 | CAN | Fit Chick | 6,190 | |
| Gabriela Marunova | 49 | Beijing-China | SVK | 43,266 | |
| Jarle Marvik | 37 | Kongsvinger | NOR | 33,166 | |
| Neil Marwood | 53 | GBR | 5,839 | ||
| Scott Marx | 32 | Windermere | USA | Live2Row Studios | 19,176 |
| Janice Marx | 64 | USA | Live2Row Studios | 5,000 | |
| William Marzullo | 24 | USA | 12,401 | ||
| Jan Masar | 49 | Prague | CZE | 19,107 | |
| Stephen Mascall | 36 | GBR | 5,732 | ||
| vernon mascall | 65 | Westbourne | GBR | 10,617 | |
| Zack Masci | 26 | CAN | 21,046 | ||
| Massimo Masi | 58 | ITA | 65,149 | ||
| Patrick Masiewicz | 57 | MI | USA | 10,021 | |
| alyssa masiewicz | 22 | USA | 5,339 | ||
| Mikhail Maslov | 60 | Cary, NC | USA | The Diamonds (Over Sixties Erging Group) | 6,730 |
| Ian Mason | 61 | Newquay | GBR | 5,016 | |
| Jim Mason | 60 | Charles Town, WV | USA | 5,000 | |
| Jeff Mason | 52 | Brentwood, TN | USA | 12,015 | |
| Neil Mason | 55 | GBR | 5,914 | ||
| David Mason | 42 | USA | 10,848 | ||
| Dominic Mason | 59 | GBR | 10,154 | ||
| Bill Massar | 59 | Mount Pleasant, SC | USA | U.S. Navy | 5,132 |
| Peter Massarelli | 62 | Charlottesville, VA | USA | OneWorld Rowing (1WR) | 6,226 |
| Ivan Massetti | 42 | GIB | 15,000 | ||
| Patrick Massey | 58 | HAARLEM | NED | 16,000 | |
| Howard Massey | 57 | USA | 8,059 | ||
| William Massimini | 35 | Edmond, OK | USA | Potomac Boat Club | 12,877 |