I think they saw it and were trying to outrun it...
As for lions, i wonder if they'd be stupid enough to have a race in an area known to be inhabited by lions. Also, from what I know, lions aren't all that active during the day, don't they usually lie around a lot during the heat of the day and then hunt at night when most nocturnal animals are out? anyways those antelopes are HUGE, apparently he wasn't badly injured.
You can catch more flies with honey than with vinegar. That's great...if you want to attract vermin.