2022 will probably be the final year of divisions so here is the all-time divisional history:
Divisions started in 2011 with the addition of Nebraska and the much-maligned Legends and Leaders Divisions. It was an interesting year in the Leaders in that the Buckeyes had an off-year (3-5). Wisconsin and Penn State tied for the Leaders Division Championship with Wisconsin winning the H2H tiebreaker. Michigan State won the Legends Division outright by a game over the Wolverines but lost to Wisconsin in the inaugural B1GCG.
2012 was another odd year in the Leaders Division. Ohio State went undefeated and won the division outright by two games over Penn State but both the Buckeyes (tatoos) and the Nittany Lions (Sandusky) were barred from postseason play so the third place Badgers represented the Leaders Division in the second B1GCG. They faced Nebraska who won the Legends Division outright by a game over the Wolverines. Wisconsin was just .500 in the league and had lost to Nebraska in Lincoln early in the season but they annihilated the Cornhuskers in the second B1GCG, 70-31.
2013 was the final year of the Legends and Leaders and saw the Spartans and Buckeyes both go undefeated and win their respective divisions outright with the Spartans beating the Buckeyes in the final Legends/Leaders B1GCG.
In three B1GCG's the Leaders won two (Wisconsin in 2011 and 2012) while the Legends won one (MSU in 2013).
2014 was the first year with Rutgers and Maryland on board and the first year of the current B1G-E and B1G-W. Wisconsin won the West by two games over the Gophers and Cornhuskers. The Buckeyes won the East by a game over the Spartans and beat the Badgers in the B1GCG then went on to win the NC.
2015 saw the Hawkeyes win the West by two games over Northwestern and Wisconsin. The Spartans and Buckeyes tied for the B1G-E and MSU won the H2H tiebreaker and went on to beat the previously undefeated Hawkeyes in the B1GCG.
2016 saw the Buckeyes lose yet another "and one" tiebreaker, this time to PSU in the East while Wisconsin won the West by a game over the Hawkeyes and Cornhuskers. Penn State won the CG.
2017 was the first of four-straight B1GCG appearances and wins for the Buckeyes. In 2017 they won the East by a game over PSU and MSU and beat Wisconsin in the CG. The Badgers won the West by two games over the Wildcats.
2018 was the first time that Ohio State managed to win a divisional tie with a H2H win putting the Buckeyes in the CG ahead of the similarly 8-1 Wolverines. Northwestern won the West by three games over Wisconsin, Purdue, and Iowa and lost to Ohio State in the CG.
2019 turned out to be the last year before the pandemic but we didn't know that at the time. Ohio State won the East by two games over PSU while Wisconsin and Minnesota tied in the West with Wisconsin winning the H2H tiebreaker and losing to Ohio State in the CG.
2020 was a strange, pandemic-shortened year in which the 5-0 Buckeyes won the East and the 6-1 Wildcats won the West. Teams played anywhere between five (tOSU, UMD) and nine (PSU, RU) games and the Buckeyes beat the Wildcats in the CG.
2021, as it turns out, was the penultimate year of divisions. Iowa won the West by a game over Minnesota, Wisconsin, and Purdue. Ohio State and Michigan tied in the East with the Wolverines winning the H2H tiebreaker and defeating the Hawkeyes in the B1GCG.
Total division Championships (includes ties):
- 10 Ohio State
- 5 Wisconsin
- 3 Michigan State
- 2 Iowa
- 2 Michigan
- 2 Northwestern
- 2 Penn State
- 1 each: Minnesota, Nebraska
- 0 Purdue, Illinois, Indiana, Maryland, Rutgers
B1GCG Appearances:
- 6 Ohio State
- 6 Wisconsin
- 3 Michigan State
- 2 Iowa
- 2 Northwestern
- 1 Penn State
- 1 Nebraska
B1GCG Wins:
- 5 Ohio State
- 2 Michigan State
- 2 Wisconsin
- 1 Michigan
- 1 Penn State
Ohio State has won 10 straight divisional championships (includes ties) including winning at least a share of the B1G-E in all eight years that the B1G-E has existed (2014-2021).