A wine expert who blindly tasted different wines during the London Marathon said he felt “honored” when his challenge went viral on social media, exceeding his fundraising target. He said he aimed to raise $2,490 for the Sobell House hospice charity in Oxford. Currently, he has raised more than $16,000. Tom Gilbey, known as the “wine guy,” drank from 25 glasses during the race, stopping at each mile to guess the type of grape used, country of origin, and vintage. Gilbey posted a video to TikTok, which has received over 3.2 million views. He had his first sip just after the start of the maratho…