April Fools' Challenge 2023
April 1–15
People with a streak of 15 days
| Name | Age | Location | Country | Affiliation |
|---|---|---|---|---|
| Justin Johnson | 32 | Carson City, NV | USA | Air National Guard |
| John Johnstone | 68 | Basingstoke | GBR | |
| Luther Jones | 74 | Boise, ID | USA | Team Diamonds |
| Christina Jones | 58 | North Curl Curl , NSW | AUS | |
| Robert Jones | 59 | Pontrhydfendigaid. | GBR | |
| Linda Jones | 73 | USA | ||
| Maurice Jongmans | 55 | NED | ||
| Deon Joubert | 37 | Cape Town | RSA | |
| Eleanor Joyner | 67 | Plano, TX | USA | |
| Jakub K | 39 | CA | USA | |
| Michael K | 54 | NED | Ministry of Defence The Netherlands | |
| Károly Kalauz | 41 | HUN | ||
| Nick Kalokasidis | 49 | Thessaloniki | GRE | |
| Vedat Kaplan | - | VA | USA | Row House Ashburn |
| Mike Kapsalis | 62 | London | GBR | |
| Jim Karlis | 52 | ME | USA | reddit /r/ rowing |
| Kalju Kask | 58 | Tartu | EST | |
| kerstin kastner | 52 | Ulm 🇩🇪 | GER | |
| Paul Kaukonen | 42 | Redding, CA | USA | |
| Shawn Kay | 42 | USA | Team Redline | |
| Gene Kelley | 71 | Tucson, AZ | USA | USAF Veterans |
| Gene Kelley | 71 | USA | ||
| Leonid Kelner | 37 | Montreal, QC | CAN | |
| Scott Kemp | 60 | Northville, MI | USA | |
| Andrew Kendall | 62 | West Newton, MA | USA | The Diamonds (Over Sixties Erging Group) |
| Daniel Kenny | 35 | Birmingham | GBR | Forum Flyers |
| Lauren Keough | 35 | MI | USA | Grand Rapids Rowing Club |
| Marek Keram | 57 | SVK | ||
| Phil Kerkhof | 39 | Cambridge, ON | CAN | |
| Larry Kessler | 41 | USA | ||
| Jän Ketchum | 49 | USA | U.S. Navy | |
| Fred Kirk | 61 | Peabody, MA | USA | |
| Laurie Kirk | 60 | USA | ||
| Dixon Kirkland | 65 | Detroit, MI | USA | |
| Rob Kirton | 67 | Littleton | USA | Golden Ores |
| Ken Kladitis | 63 | Kennesaw, GA | USA | The Diamonds (Over Sixties Erging Group) |
| Karsten-Max Klammer | 53 | Zollernalbkreis | GER | Team Ruderathlet |
| Carolyn Klassen | - | Bainbridge Island, WA | USA | WYSIWYG |
| Christopher Klassen | 53 | USA | ||
| Gerd Klinder | 62 | Weingarten/Baden | GER | |
| Elizabeth Knowlden | 27 | USA | ||
| Daniel Koehler | 37 | St. Louis, MO | USA | |
| Robert Korczyk | 45 | Jawiszowice | POL | Polish Indoor Rowing Team |
| Franz Korkesch | 66 | Kronach, BY | GER | Team Diamonds |
| Nicholas Kosar | 28 | ON | CAN | |
| Maciej Kosinski | 50 | Bromma | SWE | |
| Simon Krueger | 34 | Sammamish, WA | USA | |
| Geidi Kruusmann | 41 | EST | ||
| Vince Kubitza | 50 | GER | Team Ruderathlet | |
| Laura Kuennen | 35 | USA |