David Weir continued his relentless pursuit of quadruple gold in London by making it three out of three with yet another masterful ride.
The wheelchair racer has established himself as the hero of the Olympic Stadium in the same way Mo Farah did at the Olympics, with confident, stylish and tactically-superb racing.
And the 'Weirwolf' was at his imperious best as he devoured a world-class field to deafening roars from the enthralled capacity crown, adding the T54 800m crown to his 1500m and 5,000m titles.
The 33-year-old, the defending champion, tracked China's Zhang Lixin for the first lap before attacking with 250m to go.
Urged on by the whole stadium, he moved level with Zhang on the home straight before racing past to win in one minute 37.63 seconds.
Weir, who has the marathon left to come on Sunday, now even has his own battle cry thanks to the werewolf howls his team-mates have developed, adapted from the rock song Werewolves Of London by Warren Zevon. And the 1970s track was played in the stadium ahead of the race.
Victory took his total haul of Paralympic golds to five, having won Great Britain's only two in Beijing four years ago.