His knuckles may be bloodied and bruised, but David Rush has now broken another world record. He shared a video on Sunday showing him and his neighbor’s son managing 273 fist bumps in 30 seconds, easily beating the old record of 174.

Rush also set the world record for the most fist bumps in one minute with different people last year by fist-bumping 152 people. He’s set almost 250 Guinness World Records and does it to promote STEM education.

Source: UPI