He outstripped Time with but a Bout — Horse Racing

He outstripped Time with but a Bout, 1
He outstripped Stars and Sun
And then, unjaded, challenged God
In presence of the Throne.

And He and He in mighty List 5
Unto this present, run,
The larger Glory for the less
A just sufficient Ring.
(F.1111/J.865)
[1] Bout:: a round.
[2, 3] Stars and Sun, God:: names of horses.
[3] unjaded:: a jade is a horse of inferior breed; a hint to the answer.
[4] He and He:: the two other horses.
[7] Glory, less:: less time to win the race, the glory.
[8] Ring:: a circular runway.