Mazda Team Joest won the pole for the Rolex 24 at Daytona in a session shortened when Ricky Taylor crashed his Team Penske in Thursday qualifying.

Oliver Jarvis piloted the Mazda DPi to the top starting spot in the twice-round-the-clock endurance race that begins Saturday at Daytona International Speedway and uses both the road course and the oval. He was being challenged by reigning IMSA series champion Juan Pablo Montoya in an Acura for Team Penske, but Montoya's shot at catching him ended when Taylor crashed with a little less than two minutes remaining in qualifying.

Wayne Taylor Racing, the defending race winners, qualified fifth with Ryan Briscoe behind the wheel. The team has a new look this year as full-time driver Jordan Taylor left his father's organization to become a Corvette factory driver, so only Renger Van der Zande and Kamui Kobayashi returned to the winning endurance lineup.

The car in the pits during practice for the Rolex 24 hour auto race at the Daytona International Speedway, in Daytona Beach Fla., on Thursday, Jan. 23, 2020. (AP PhotoReinhold Matay)

The car in the pits during practice for the Rolex 24 hour auto race at the Daytona International Speedway, in Daytona Beach Fla., on Thursday, Jan. 23, 2020. (AP PhotoReinhold Matay)

Briscoe has replaced Jordan Taylor as the full-time driver for the season, while five-time IndyCar champion Scott Dixon completes the endurance team lineup.

The field for this year's race has just 38 entries — the smallest field in 58 runnings of the prestigious season kickoff. The smallest field previously was 42 starters in 1962, the second year of the race.

While the field does include an impressive 18 different manufacturers, there's a glaring absence with Chip Ganassi sidelined after Ford ended its program after four seasons in the GT Le Mans class. Ganassi hopes to return to sports competition in 2021, potentially in the Daytona Prototype class, but his two sidelined entries have contributed to the low car count.

Turner Motorsports drivers Robby Foley, right, listens to fellow driver Jens Klingman in the pits during practice for the Rolex 24 hour auto race at the Daytona International Speedway, in Daytona Beach Fla., on Thursday, Jan. 23, 2020. (AP PhotoReinhold Matay)

Turner Motorsports drivers Robby Foley, right, listens to fellow driver Jens Klingman in the pits during practice for the Rolex 24 hour auto race at the Daytona International Speedway, in Daytona Beach Fla., on Thursday, Jan. 23, 2020. (AP PhotoReinhold Matay)

The DPi class, which races for the overall victory, has just eight entries. But the class includes Indianapolis 500 winners Dixon, Montoya, Helio Castroneves, Simon Pagenaud, Alexander Rossi, Ryan Hunter-Reay and four-time IndyCar champion Sebastien Bourdais.

Ben Keating won the pole in the Le Mans Prototype 2 class for PR1 Mathiasen Motorsports. The LMP2 class has just five entries.

Keating is competing in two classes this weekend as he's also a member of Riley Motorsports in the GT Daytona class.

Tower Motorsport by Starworks diver John Farano works with a team member on a tire during practice for the Rolex 24 hour auto race at the Daytona International Speedway, in Daytona Beach Fla., on Thursday, Jan. 23, 2020. (AP PhotoReinhold Matay)

Tower Motorsport by Starworks diver John Farano works with a team member on a tire during practice for the Rolex 24 hour auto race at the Daytona International Speedway, in Daytona Beach Fla., on Thursday, Jan. 23, 2020. (AP PhotoReinhold Matay)

Porsche GT Team swept the first two qualifying positions in the GT Le Mans class as Nick Tandy won the pole in the 911 RSR-19, and Laurens Vanthoor was second in the sister car. Tandy broke his class qualifying record from last year.

Tandy has now won four poles at the Rolex, tying Scott Pruett for the race record.

Pfaff Motorsports won the pole with a Porsche 911 in the GT Daytona class, which has the most entrants with 18 cars. Among the cars in GTD are two Lexus entries from AIM Vasser Sullivan, one of which is being piloted by reigning NASCAR champion Kyle Busch.

AIM Vasser Sullivan driver Frankie Montecalvo, left, looks at a monitor in the pits during practice for the Rolex 24 hour auto race at the Daytona International Speedway, in Daytona Beach Fla., on Thursday, Jan. 23, 2020. (AP PhotoReinhold Matay)

AIM Vasser Sullivan driver Frankie Montecalvo, left, looks at a monitor in the pits during practice for the Rolex 24 hour auto race at the Daytona International Speedway, in Daytona Beach Fla., on Thursday, Jan. 23, 2020. (AP PhotoReinhold Matay)

But that car required a precautionary engine change after Thursday practice and was not ready to qualify. It will start at the back of the field on Saturday.

The Pfaff team, meanwhile, has turned heads all month with the debut of new firesuits that give a nod to the team's Canadian roots. The firesuits are styled to resemble a plaid flannel shirt and denim pants, but made from the standard fireproof Nomex material.