|Hometown:||St. Louis, Mo.|
|High School:||Lutheran North|
2014: In 30 games, Tanner hit .242 with 16 H, 10 R, 16 RBI's, 4 HR, and 12 BB.
2015: In 34 games, Tanner hit .245 with 24 H, 21 R, 19 RBI's, 3 HR, and 8 2B. He was named to the SLIAC All-Sportsmanship Team.
2016: In 42 games, Tanner hit .343 with 49 H, 14 2B, 10 HR, 43 RBI's, and 14 BB as well as pitching 45 innings with 37 K, 7.40 K/9, and 5 SV. He was named to the SLIAC First-Team All-Conference, D3Baseball.com's Second-Team All-Central Region, and ABCA's Division III Second-Team All-Central Region.
Personal: Tanner is the son of Tim and Jackie Branneky and has two brothers, Tyler and Timmy.
2017: Holds record for 4th highest batting average in a season in school history (.414). He holds the 2nd place record in school history for slugging percentage in a season (.748) and 4th place record in school history for on base percentage in a season (.518). He was named to the SLIAC First-Team All-Conference.
- 33 doubles (tied for 4th place)
- 26 homeruns (1st place)
- 108 runs (4th place)
- 140 games played (4th place)
- 248 total bases (2nd place)
- 113 RBIs (3rd place)