THESE two boys each ran more than 100 kilometres during February to raise money for Great Ormond Street Hospital (GOSH).

Oli Broadwith (left, aged 12) and his brother Tom (right, aged nine) from Berkhamsted aimed to run 100km by Rare Disease Day on 28 February, with the goal of raising £150.

Despite the freezing weather, the brothers smashed their target distance, each running an incredible 135.34km! Together, they raised a whopping £5,171.

The two are regularly monitored at the GOSH Zayed Centre, having been diagnosed with a rare heart condition themselves.

To hear from Oli and Tom themselves in their thank-you video message, check out the video above.