The start list is now posted for 2023 ACE Physical Therapy & Sports Medicine Institute 2023 Potomac River Run Marathon & Half on April 24, 2023, at https://www.webscorer.com/startlist?pid=1&raceid=312401 On-site parking is extemely limited, so please arrange to car-pool or use a commercial carrier like Uber, Lyft, or Red Top Cab (703-522-3333). To offer a ride, you can use our Facebook group page www.facebook.com/groups/53196613490 We use WebScorer RFID timing to manage our races. An RFID timing chip in a waterproof plastic bag is stapled to the back of the name tag at the bottom of your bib number. You must START and FINISH with the RFID timing chip stapled to your name tag. DO NOT OPEN OR DETACH THE ENVELOPE! DO NOT REMOVE OR LOSE THE TIMING CHIP STAPLED TO THE BACK OF YOUR NAME TAG! If you do, your finish time won't be timed, and your finish won't count! Please return it intact, in its plastic envelope, still stapled to the back of your bib numberm when we collect name tags after you finish. If you get your bib number and chip at packet pick-up but you don't come to the race, please mail the chip back to us at SHF 611 South Ivy Street Arlington VA 22204 Full information about everything for the race is at www.safetyandhealthfoundation.org/marathon Late Saturday afternoon after the races, we publish the results as hand-timed on a Time Machine (r) as a back-up.The hand-timed results will be at www.safetyandhealthfoundation.org/20230506.html You can use the many various features on that page to gauge your competition or to know your bib number in advance so you can tell your friends and family. WebScorer automatically creates a new results page whe the race actually starts When we start the race, the results page will be listed at the top of www.webscorer.com/shfresults then click the link to 2023 Potomac River Run Marathon & Half Webscorer automatically updates the results page every 10 seconds during the race. When you finish, WebScorer instantly automatically send you confirmation of your finish via e-mail. Congratulations in advance, and thank you for joining us! Jay Jacob Wind, director Safety And Health Foundation 703-505-3567 PS I will send a separate more detailed letter later.