The 9th hour commenced under yellow flag conditions after the #18 Muehlner Motorsports America car hit the barrier at the hairpin. The car returned to pit under its own steam but the car was shortly announced as an official retirement.Many teams took the opportunity to take a pit stop, including a change of brake pads for some teams, the only team to really suffer with a slight delay was the #10 Wayne Taylor Racing that dropped from second place to 6th.
The racing resumed after a caution period of 25 minutes with the #02 Chip Ganassi Racing with Felix Sabates trying to pass the sister #01 car as they are both put under pressure from Mike Rockenfeller in the #9 Action Express Racing car.
GT was led for the first time in the race by the #52 Audi Sport Customer Racing/APR Motorsport as the team decided not to stop under caution. The lead was short lived as the car, being driven at the time by Marc Basseng, received a penalty for rule infringements regarding the wave by procedure. This put the hard charging Sean Edwards into the lead in the #30 MOMO/NGT Motorsport.
For the rest of the hour the Chip Ganassi Racing with Felix Sabates cars established steady control of the race with Scott Pruett at the wheel of the #01 and Scott Dixon at the wheel of the #02. These cars are steadily being paced by the pair of Action Express Racing cars of Christian Fittipaldi and Mike Rockenfeller. The top 6 in the DP class is covered by just over 30 seconds after 9 hours of racing.
The battle in GT ended the hour in slightly more dramatic fashion. The Audi Sport Customer Racing/ AJR of Oliver Jarvis and the Scuderia Corsa Michelotto car of Oliver Beretta involved in a great dice for second position in class.
The GX class remained constant with the lead being held by the #16 Napleton Racing Porsche
2013 Rolex 24 at Daytona Daytona Prototype standings after 9 hours
1 – #01 Chip Ganassi Racing with Felix Sabates BMW-Riley
2 – #02 Chip Ganassi Racing with Felix Sabates BMW-Riley
3 – #5 Action Express Racing Corvette DP
4 – #10 Wayne Taylor Racing Corvette DP
5 – #2 Starworks with Alex Popow – Ford Riley
2013 Rolex 24 at Daytona GT standings after 9 hours
1 – #44 Magnus Racing Porsche
2 – #24 Alex Job Racing Audi
3 – #63 Scuderia Corsa Ferrari
4 – #13 Audi Sport Customer Racing/Rum Bum Racing Audi
5 – #59 Brumos Racing Porsche
2013 Rolex 24 at Daytona GX standings after 9 hours
1 – #16 Napleton Racing Porsche
2 – #38 BGB Motorsports Porsche
3 – #25 Freedom Autosport/Speedsource Mazda