Ciara Mageean breaks Irish 1500m record as she beats Laura Muir

Ireland's Ciara Mageean has broken Sonia O'Sullivan's 27-year-old 1500m national record while winning the Diamond League meeting in Brussels

RECORD BREAKER: Ireland’s Ciara Mageean celebrates after claiming silver at the European Championships last month. She has now broken the Irish 1500m record. Pic: INPHO/Morgan Treacy

Ciara Mageean produced the best performance of her career to smash Sonia O’Sullivan’s Irish 1500m record and take victory at the Diamond League meeting in Brussels tonight, the 30-year-old clocking 3:56.63.

Mageean’s time carved more than two seconds off O’Sullivan’s previous record of 3:58.85, set in 1995, and it brought her home ahead of European champion and Olympic silver medallist Laura Muir of Britain, who clocked 3:56.86.