The Virtual Valentine's Day Run - The Virtual Marathon Series presents The Virtual Valentine's Day Run. Take this 10K challenge on any time before or on the 14th of February (Valentine's Day). Simply register to the event below and we will give you access to the Virtual Marathon Series runner's portal where you can submit your evidence before or on the big day. To complete this challenge, you must complete a 10K distance, however it can be done in 1 of the following ways.