pull-ups
... that the Guinness World Record for the most consecutive pull-ups is 651 in 87 minutes?
... that the <a href="./Guinness_World_Records" id="mwArQ" rel="mw:WikiLink" title="Guinness World Records">Guinness World Record</a> for the most consecutive <b id="mwArU"><a href="./Pull-up_(exercise)" id="mwArY" rel="mw:WikiLink" title="Pull-up (exercise)">pull-ups</a></b> is 651 in 87 minutes?