Block O

Block O is a student organization at Ohio State University in Columbus, Ohio, and serves as the university's official student cheering section for Ohio State Buckeyes athletics. Founded in 1938 by Ohio State cheerleader Clancy Isaac, the organization developed around coordinated student support at football games and became closely associated with Ohio Stadium's traditions, chants, songs, and visual displays. The organization is best known for leading stadium-wide participation in the Stadium OHIO and O-H-I-O cheers. The O-H-I-O cheer is also attributed to founder Clancy Isaac. Block O's football presence has changed as Ohio Stadium's seating arrangements and renovations evolved. It originally occupied the north end zone, later moved to section 39A in the south stands, and subsequently expanded to include a northern section. In 2008, Block O North returned in sections 1A and 2A, while Block O South continued in the southern stands. The two sections developed distinct presentation styles: Block O North was associated with capes, while Block O South performed card stunts. Block O is a large organization by university-student-group standards. Its membership exceeds 2,500 students, while the designated Block O football seating allotment is limited to 2,083 tickets. Those tickets reportedly sell out within minutes of the annual sales window opening, making the football section a high-demand student experience. Membership and participation extend beyond the students who can obtain seats in the designated sections. The organization has also broadened its support network beyond football. Related groups and extensions have been created for several Ohio State sports, including men's basketball through the Buckeye Nuthouse, baseball through the Buckeye Sluggers, men's ice hockey through the Knucklebucks, and men's soccer through Connor's Crew. Additional Block O groups support volleyball, gymnastics, tennis, lacrosse, women's basketball, and wrestling. These extensions allow the organization to function as a broader student-fan network rather than only a football-game section. In 2025, Block O North and Block O South were brought back together in the south end zone as one group. This reunification marked another change in the physical organization of the student section while preserving Block O's role in coordinated cheering, songs, and visual activities. Block O's identity is therefore rooted less in commercial products than in participation, school spirit, student traditions, and organized support for Ohio State athletics.

Block O was established at Ohio State University in 1938 by Clancy Isaac, an Ohio State cheerleader. From its beginning, the group was designed to organize student participation in support of the university's athletic teams. Its most visible role developed at Ohio Stadium, where it became the official student cheering section for the Ohio State Buckeyes and helped formalize the chants, songs, and coordinated actions associated with the student crowd. One of the traditions associated with Block O is the O-H-I-O cheer, which is credited to Isaac. Block O also leads Stadium OHIO and other stadium-wide cheers. Through these activities, the organization became part of the broader game-day culture surrounding Ohio State football rather than functioning merely as a conventional campus club. The football section's location changed over time. Before renovations to Ohio Stadium, Block O occupied the north end zone. It later moved to section 39A in the south stands. In 2008, a northern component, Block O North, returned in sections 1A and 2A, while Block O South operated in the southern stands. The separate sections developed different visual traditions. Block O North used capes as part of its presentation, while Block O South was known for card stunts that created coordinated visual effects across the student section. Demand for participation has remained high. The designated Block O sections have an annual allotment of 2,083 student tickets, and that allotment sells out within minutes of the ticket-sales window opening. The organization's membership is larger than the football seating capacity, exceeding 2,500 students. This distinction reflects Block O's role as a wider student organization whose membership and affiliated activities extend beyond the people seated in the official football sections. Over time, Block O expanded its presence to additional Ohio State sports. Its related groups include the Buckeye Nuthouse for men's basketball, Buckeye Sluggers for baseball, Knucklebucks for men's ice hockey, and Connor's Crew for men's soccer. Other extensions support volleyball, gymnastics, tennis, lacrosse, women's basketball, and wrestling. The expansion created a network of sport-specific student supporters while retaining the Block O name and its emphasis on organized enthusiasm. In 2025, Block O North and Block O South were rejoined in the south end zone as a single group. The change brought together sections that had operated as distinct parts of the football organization and represented a new phase in the arrangement of the student section. Despite changes in location and structure, Block O has continued to center its activities on coordinated cheering, school spirit, and direct student participation in Ohio State athletics.

• 2025

  North and South sections reunite

  [1]Block Oen.wikipedia.org

  Block O North and Block O South were brought together in the south end zone as one group.

• 2008

  Block O North returns

  [1]Block Oen.wikipedia.org

  Block O North returned in Ohio Stadium sections 1A and 2A, operating alongside Block O South.

• 1938

  Block O is founded

  [1]Block Oen.wikipedia.org

  Ohio State cheerleader Clancy Isaac founded Block O as a student organization supporting Ohio State athletics.

A university-affiliated student spirit organization and coordinated fan section centered on Ohio State athletics, school traditions, and live-event participation.

• Student sports support · 1938

  Ohio Stadium Block O student section

  Block O's central offering is an organized student-section experience at Ohio State football games. Participants lead chants and songs, including Stadium OHIO and the O-H-I-O cheer, and take part in coordinated visual activities such as card stunts. The section is reserved for students and has a limited annual ticket allotment, while overall organization membership is larger than the available football seating.

• University athletics fan groups

  Sport-specific Block O groups

  Block O has developed affiliated groups for several Ohio State sports. Named extensions include the Buckeye Nuthouse for men's basketball, Buckeye Sluggers for baseball, Knucklebucks for men's ice hockey, and Connor's Crew for men's soccer. Additional groups support volleyball, gymnastics, tennis, lacrosse, women's basketball, and wrestling, extending the organization's student-fan model beyond football.

• 2025

  Reunification of Block O North and Block O SouthStrategy

  Background

  Block O had operated with northern and southern components in different Ohio Stadium sections, each with its own presentation traditions.

  Action taken

  The two groups were brought back together in the south end zone as one Block O section.

  Aftermath

  The reunification restored a single combined football student section while preserving Block O's role in coordinated Ohio State cheering.

  Source

• 2025

  Block O North and Block O South reunite in the south end zone[1]Block Oen.wikipedia.org

  Other

  The two Block O football student-section groups were brought back together in the south end zone as one organization.

1. 1Block Oen.wikipedia.org
2. 2Block O official websiteblocko.org
3. 3Private Blockchain Blocko Expands Partnership With Samsung | Crowdfund Insidercrowdfundinsider.com