Mazda seals IMSA SportsCar victory at Mosport after late restart

Oliver Jarvis and Tristan Nunez handed Mazda its second IMSA Sportscar Championship victory in as many weeks at Mosport, after a heavy crash for Victor Franzoni prompted a late-race restart

The #77 Team Joest Mazda ran second to the sister #55 Mazda of Harry Tincknell and Jonathan Bomarito for much of the race but assumed the lead following a slow final pitstop for the latter in the last hour.

Franzoni brought out the full-course caution and then the red flags after losing control of his #50 Juncos Racing Cadillac on a bump at Clayton Corner with just under half an hour remaining, going heavily into the tyre barriers.

Franzoni escaped serious injury but was taken to the medical centre for checks.

Daytona Prototype international points leaders Dane Cameron and Juan Pablo Montoya staved off a fierce attack from the #31 Whelan Engineering Cadillac of Pipo Derani to claim the final step on the podium for Penske.

The CORE Autosport Nissan of Colin Braun took pole on Saturday, but the #54 relinquished its place at the head of the field as the team elected to change its starting driver to John Bennett.

Helio Castroneves led the early running in the #6 Penske Acura from Bomarito and Montoya.

Bomarito made a bold overtaking attempt on Castroneves at Moss Corner before going side-by-side with the Penske driver on the high-speed run down the Mario Andretti Straightaway.

Castroneves held firm and maintained the lead, but Bomarito found a way past as the Penske got held up in GT Daytona traffic on the exit of Turn 5.

Nunez forced the #77 past Montoya in a similar fashion and made significant inroads into Castroneves ahead of the first round of routine pitstops.

The two Penskes got back past the #77, now with Jarvis at the wheel, while Bomarito's 12-second lead prior to the stops was trimmed to just over three seconds.

The leading trio then pitted after the #38 ORECA of Cameron Cassels stopped on track, eventually bringing out the full-course yellow entering the final hour.

Jarvis cycled into the lead after slow pitstop work cost the #55 of Tincknell valuable seconds.

The order remained unchanged until Franzoni brought out a second full-course yellow just minutes after the restart, which eventually turned into a red flag.

Jarvis held onto the lead until the finish, with Tincknell just fending off a late attack from Cameron to take second place.

Derani claimed fourth after an epic battle with Taylor that produced side-by-side action through Turns 2 and 3, with the #31 eventually taking the place on the exit of Turn 4.

Under pressure from the recovering #50 of Braun, Derani was forced to turn defence into an attack on Taylor, who in turn got baulked by traffic and had to cede the place.

A clever strategy for the #912 Porsche of Earl Bamber and Laurens Vanthoor was key to securing the fifth consecutive victory of the season for the manufacturer.

Jesse Krohn led the initial running in the #24 BMW from the Chip Ganassi Ford GT of Ryan Briscoe, but the pair were usurped by Vanthoor after the second round of stops.

Bamber never looked under threat from then on and edged Krohn's team-mate John Edwards by 1.208 seconds at the flag.

Nick Tandy and Patrick Pilet claimed third place in the #911 Porsche, despite falling behind the #25 BMW of Tom Blomqvist and Connor de Phillippi in traffic.

Bill Auberlen made it two wins in two weekends in GT Daytona in the Turner Motorsport BMW, beating the Acura of Mario Farnbacher and Trent Hindman and the Lexus of Townsend Bell and Frank Montecalvo.

Race result

Pos Class Driver Team Car Laps Gap
1 DPi O.Jarvis, T.Nunez Mazda Team Joest Mazda 125 2h48m04.679s
2 DPi J.Bomarito, H.Tincknell Mazda Team Joest Mazda 125 1.699s
3 DPi J.P.Montoya, D.Cameron Acura Team Penske Acura 125 2.502s
4 DPi F.Nasr, P.Derani Whelen Engineering Racing Cadillac 125 4.708s
5 DPi R.Taylor, H.Castroneves Acura Team Penske Acura 125 5.058s
6 DPi R.van der Zande, J.Taylor Konica Minolta Cadillac DPi-V.R Cadillac 125 11.747s
7 DPi J.Bennett, C.Braun CORE Autosport Nissan 125 34.322s
8 DPi S.Trummer, S.Simpson JDC-Miller Motorsports Cadillac 124 1 Lap
9 DPi M.Goikhberg, T.Vautier JDC-Miller Motorsports Cadillac 122 3 Laps
10 LMP2 M.McMurry, D.Kellett PR1/Mathiasen Motorsports ORECA/Gibson 120 5 Laps
11 DPi J.Barbosa, F.Albuquerque Mustang Sampling Racing Cadillac 119 Not running
12 GTLM E.Bamber, L.Vanthoor Porsche GT Team Porsche 116 9 Laps
13 GTLM J.Krohn, J.M.Edwards BMW Team RLL BMW 116 9 Laps
14 GTLM P.Pilet, N.Tandy Porsche GT Team Porsche 116 9 Laps
15 GTLM T.Blomqvist, C.De Phillippi BMW Team RLL BMW 116 9 Laps
16 GTLM R.Briscoe, R.Westbrook Ford Chip Ganassi Racing Ford 116 9 Laps
17 GTLM J.Hand, D.Muller Ford Chip Ganassi Racing Ford 116 9 Laps
18 GTLM J.Magnussen, A.Garcia Corvette Racing Chevrolet 116 9 Laps
19 GTLM O.Gavin, M.Fassler Corvette Racing Chevrolet 116 9 Laps
20 GTD B.Auberlen, R.Foley Turner Motorsport BMW 113 12 Laps
21 GTD M.Farnbacher, T.Hindman Michael Shank Racing with Curb-Agajanian Acura 113 12 Laps
22 GTD F.Montecalvo, T.Bell AIM Vasser Sullivan Lexus 113 12 Laps
23 GTD P.Lindsey, P.Long Park Place Motorsports Porsche 113 12 Laps
24 GTD S.Hargrove, Z.Robichon Pfaff Motorsports Porsche 113 12 Laps
25 GTD K.Legge, A.Beatriz Heinricher Racing with Meyer Shank Racing Acura 113 12 Laps
26 GTD B.Keating, J.Bleekemolen Mercedes-AMG Team Riley Motorsports Mercedes 113 12 Laps
27 GTD J.Potter, A.Lally Magnus Racing Lamborghini 113 12 Laps
28 GTD C.MacNeil, T.Vilander Scuderia Corsa Ferrari 113 12 Laps
29 GTD P.Holton, M.Plumb Compass Racing McLaren 113 12 Laps
30 GTD G.Robinson, L.Aschenbach Lone Star Racing Mercedes 112 13 Laps
31 LMP2 K.Masson, C.Cassels Performance Tech Motorsports ORECA/Gibson 101 Not running
32 DPi W.Owen, V.Franzoni Juncos Racing Cadillac 100 Not running
33 GTD R.Heistand, J.Hawksworth AIM Vasser Sullivan Lexus 76 Not running
- GTD B.Sellers, R.Hardwick Paul Miller Racing Lamborghini 0 Withdrawn

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