Meanwhile, 200 metre defending champion Noah Lyles claimed to be in pursuit of three gold medals, even though he had only finished third at the US Championships.
By the halfway point, Coleman had a metre and a half on the next group of Seville, Lyles and Zharnel Hughes, but the three were closing.
Over the final 20 metres, Lyles continued to increase the narrow gap while Coleman drifted out the back.
Lyles crossed the finish as a clear winner, with Tebogo, Hughes and Seville hitting the line together.
Tebogo's version of 9.88 improved on his own Botswana national record for the seventh time; his silver medal was the first won by an African man in the 100m at the world championships.