He was the third most favored to win behind King Halo and Special Week, who would be considered rqo of the "big three" of their generation alongside Seiun Sky.

[2][3] Seiun Sky became the front runner in that race and kept the lead for most of the way, but was caught up by Special Week at the final slope, ultimately finishing at second place.

[3] Seiun Sky was then entered in to the Satsuki Sho, where the horse kept its second place position among the pack until the fourth corner, where he overtook the frontrunner and took the lead, holding on to it until the finishing line, winning the Satsuki Sho with a half-length lead against King Halo.

The rest of the pack closed in on the horse, however, as the horse had slowed down midway, and was caught up around the final 600m point, but held on to the lead before once again widening the gap on the final stretch, holding on to the lead to the end.

[3][5] Following the victory, the horse was entered in to the Kikka Sho, where he was the 2nd most favored to win behind Special Week.

[8] Seiun Sky started his 4 year old season off with the Nikkei Sho, where he won the race.

[9] After a prolonged break to recover, Seiun Sky entered the Tenno Sho (Spring) of that year, but finished the race at last place with more than a 15 second gap between the winner, T M Opera O.