In numbers from conference games, Ohio State leads the nation in scoring offense (29.0 points per game), scoring defense (11.2 points allowed per game), total defense (269.0 yards per game), pass efficiency, opponents' third-down conversions (30.1 percent) and sacks (tie, 20). Iowa is No. 1 in pass efficiency defense. Ohio State quarterback Terrelle Pryor is No. 1 in passer efficiency rating, and Iowa linebacker Pat Angerer is No. 1 in tackles with 73.
Iowa has won two Big Ten championships under head coach Kirk Ferentz. In 2002, the Hawkeyes shared the title Ohio State as both teams went undefeated in conference play but did not meet on the field. In 2004, Ohio State upset Michigan on the last day of the season conference season to deny the Wolverines an outright championship and allow the Hawkeyes to earn a share of the title by beating Wisconsin the same day.
Iowa has won four games by three points or less in the same season for the first time in school history.
Ohio State has won or shared the last four Big Ten titles. The winner Saturday will claim at least a share of the 2009 championship and is assured of the conference's automatic bid to the BCS.
Ohio State head coach Jim Tressel has coached the Buckeyes to five Big Ten titles, tying him with former Michigan head coach Lloyd Carr for eighth on the all-time list for coaches. Saturday he can become the eighth coach to win at least six conference crowns. Former Ohio State head coach Woody Hayes and former Michigan head coach Bo Schembechler (a former Hayes assistant) are tied for the most Big Ten championships (13).
Ohio State's defense has allowed eight touchdowns in its past 35 quarters.
Iowa has trailed in nine of 10 games this season.
Saturday is senior day for 19 Buckeyes.
The two teams have combined for 51 takeaways this season, with Ohio State posting 25 and Iowa one better with 26.
Ohio State and Iowa will play for the 63rd time Saturday. The Buckeyes hold a 44-14-3 advantage in the all-time series that started in 1922.
Ohio State rushed for a combined 528 yards in the past two meetings with Iowa. The Buckeyes amassed 314 yards in Columbus against the Hawkeyes in 2000 and 214 a season later in Iowa City.