2025 Marathon and Century Challenge
Half Marathon Board
Total people: 1236
| Name | Age | Location | Country | Affiliation | Number |
|---|---|---|---|---|---|
| Trevor Senetza | 54 | Sherwood park, AB | CAN | 1 | |
| Taehoon Seok | 43 | Seoul | KOR | Geobukseon -「거북선」 | 1 |
| Mauro Serena | 49 | Treviso | ITA | 1 | |
| Joe Servas | 33 | Cumming, GA | USA | 1 | |
| dave sexson | 54 | Indio , CA | USA | 3 | |
| Dani Shahvarani Renouf | 47 | Vancouver | CAN | 1 | |
| Jeff Shanahan | 66 | USA | The Diamonds (Over Sixties Erging Group) | 1 | |
| Stewart Shatford | 42 | UK | GBR | 1 | |
| Harry Shaw | 15 | GBR | 1 | ||
| Daniel Shay | 52 | Tampa, FL | USA | 1 | |
| Andrew Sheffer | 36 | MI | USA | 1 | |
| Gavin Shefford | 56 | Eastleigh | GBR | 1 | |
| Mark Shen | 42 | Shanghai | CHN | 亦可赛艇 | 1 |
| Tony Sheneman | 65 | CA | USA | The Diamonds (Over Sixties Erging Group) | 1 |
| Bernie Shiao | 64 | Sparks Glencoe, MD | USA | The Diamonds (Over Sixties Erging Group) | 1 |
| Chad Shields | 54 | USA | 1 | ||
| Trey Shipp | 62 | Atlanta, GA | USA | The Diamonds (Over Sixties Erging Group) | 1 |
| Rachel Showalter | 38 | MI | USA | University of Virginia | 1 |
| Ursula Siebel | 60 | MAS | 1 | ||
| Keryan SILLOUX CAP MARARA | 18 | PYF | 1 | ||
| Angelo Silva | 39 | POR | GNR Portugal - Guarda Nacional Republicana | 1 | |
| Andrew Simmonds | 56 | Southend | GBR | Red Line Rowers | 1 |
| Chris Simpson | 41 | London | GBR | Royal Air Force (UK) | 1 |
| Justin Sims | 44 | Carmel, IN | USA | 1 | |
| Espen Skjervold | 41 | NOR | 1 | ||
| Phil Sleight | 54 | Woking | GBR | Rowing for Beer | 4 |
| David Sloman | 67 | GBR | 1 | ||
| Gwyn Sloman | 65 | GBR | Age Against The Machine | 1 | |
| james smigiel | 55 | USA | 1 | ||
| Syd Smith | 75 | Columbia City, OR | USA | The Diamonds (Over Sixties Erging Group) | 1 |
| Pavel Smolka | 51 | Prague | CZE | Concept Fitness Czechia | 1 |
| Kevin Smothers | 44 | TN | USA | 8 | |
| Jill Snethen | 57 | Princeton, IL | USA | Street Parking | 1 |
| Jackie Snyder | 70 | Folsom, CA | USA | Capital Crew, Sacramento | 1 |
| Stephen Sobolevitch | 60 | USA | 1 | ||
| Dave Solliday | 71 | VA | USA | The Diamonds (Over Sixties Erging Group) | 1 |
| Gui Sommer | 41 | Barrie, ON | CAN | 1 | |
| Helena Somorovska | 37 | CZE | 1 | ||
| Letizia Sonzio | 56 | ITA | 1 | ||
| Luca Sorbini | 40 | Pesaro | ITA | 1 | |
| Ricardo Soto Maior | 42 | RSA | 1 | ||
| Tony Sousa | - | Johannesburg | RSA | Age Without Limits | 1 |
| Louisa Southworth | 51 | Manchester | GBR | 1 | |
| Chris Spalding | 42 | AUS | 1 | ||
| Amanda Spencer | 55 | Toronto, ON | CAN | Team Canada | 1 |
| Mike Spilsbury | 61 | KEN | The Diamonds (Over Sixties Erging Group) | 1 | |
| Wim Spittaels | 41 | BEL | 1 | ||
| Zach Stackhouse | 35 | Cleveland, OH | USA | University of Notre Dame | 1 |
| Kent Stader | 53 | Lafayette, IN | USA | 1 | |
| Pieter Stadler | 47 | Edinburgh | GBR | British Army | 1 |