Visitors can leave comments in two places on my.raceresult.com:

1. On the Reviews tab they can leave longer texts and rate the event with a 5-star-system.
2. Comments can be left for specific participants in the Participant View. If there are comments for a participant and the comment logo is enabled then the comment icon on the left side of the Output list will be solid. 

Comments can be set in Particpant Views and the Reviews tab can be disabled if you choose, and you can also moderate comments through the Handle Comments page. 

Note that new comments are checked on a daily basis by RACE RESULT and comments deemed inappropriate will be removed.