Sir Mo Farah aims to use the London Marathon in October to gauge his competitiveness at the top of athletics, as the 39-year-old adjusts to the ageing process.
Farah to make decision over future after London Marathon
Sir Mo Farah has cast doubt over his long-term racing future and insists he will know when to quit.
The four-time Olympic champion will run the London Marathon in October, a month after competing in the Big Half in the same city.
They are Farah’s only races left this year after he was beaten by shop assistant Ellis Cross at the Vitality 10k in London in May.
Farah insists he still has the desire to compete but concedes he will only know if he can still match the best after London.