Five Star Gift Ideas

How about a running watch specifically designed for marathon runners? There are brands like Garmin and Polar that make running watches with advanced features such as GPS tracking, heart rate monitoring, activity tracking, and personalized training plans. This could help him better track his progress and improve his performance. Alternatively, you could also consider gifting him entry to a popular marathon race or a trip to a city where a famous marathon takes place. This way, he could participate in the race and experience the thrill of running in a new and exciting location.

Or you can get him a star map with the date when he was born.

Burcin Dalkanat says about Under Lucky Stars star maps:

“It was such a sentimental and romantic present for my husband's birthday (since he is so into astronomy and the moon on the background). The order came super well packaged, and now it is the gem in the basement :)”