Southern sealed the deal on Sunday with extraordinary performances in the men's pole vault and discus.
The MVC Outdoor Track and Field Championships will be hosted by Illinois State in Normal, Ill., on May 15-17.
In total, the Saluki men won six events and the women three in two days of competition.
Southern ended the meet with eight total wins.
Just one week after setting the American Junior record at 17.64m (57-10.50), Saunders broke it again -- along with the all-time SIU and MVC indoor records -- at 17.99m (59-00.25).
Photos from Day One of the MVC Outdoor Championships in Normal, Ill.; May 15, 2015
Photos from the MVC Senior Ceremony; May 15, 2015
Photos from Day Two of the Saluki Open, Jan. 11, 2014
Ran a leg of the 4x400m race that finished first at the Saluki Open in 3:28.32...Finished sixth of 26 in the 200m at the SIU Invitational with a 23.17 finish...Competed in three events (60m, 200m, 4x400m) in eight indoor meets...Participated in four events (100m, 200m, 4x100m, 4x400m) in seven outdoor meets...MVC Commissioner's Academic Excellence Award recipient.
Participated in three events (60m, 200m, 4x400) in eight meets indoors and three events (100m, 200m, 4x200) in seven meets outdoors...Notched five top-third finishes across both seasons...Set a personal best outdoors in the 200 meter dash (22.27, Ole Miss Invite).
Competed in five different events in ten meets combined in the indoor and outdoor seasons (55m, 60m, 100m, 200m, 400m)...Notched five top-ten finishes, all in the outdoor season...Best finish came at the Vanderbilt Black and Gold in the 100m, where he finished third with a time of 11.30.
Three year all-conference, all-state selection...State qualifier in 4x200 relay and 200 meter dash junior and senior year...Illinois State Scholar.
Full name is Spencer Allan Jackson...Born on Dec. 16, 1992...Son of Steven and Annette Jackson...Has three siblings, Sterling, Sedrick, and Tanya...Relative of former NBA player AJ Guyton...Majoring in sport administration.