Tudor Sportscar practice 3 results from Mosport
| Pos | CP | No | Class | Drivers | Time | Speed | Lap | Diff | Laps | Make |
| 1 | 1 | 1 | P | Sharp/Dalziel | 1:09.996 | 126.470 | 24 | — | 34 | HPD ARX-03b |
| 2 | 2 | 90 | P | Westbrook/Valiante | 1:10.224 | 126.059 | 27 | 0.228 | 34 | Corvette DP |
| 3 | 3 | 5 | P | Barbosa/Fittipaldi | 1:10.835 | 124.972 | 25 | 0.839 | 33 | Corvette DP |
| 4 | 4 | 2 | P | Brown/van Overbeek | 1:10.889 | 124.877 | 25 | 0.893 | 34 | HPD ARX-03b |
| 5 | 5 | 10 | P | R.Taylor/J.Taylor | 1:10.997 | 124.687 | 14 | 1.001 | 29 | Corvette DP |
| 6 | 6 | 60 | P | Pew/Negri Jr. | 1:11.064 | 124.569 | 11 | 1.068 | 35 | Ford EcoBoost/Riley |
| 7 | 7 | 01 | P | Pruett/Rojas | 1:11.603 | 123.632 | 16 | 1.607 | 23 | Ford EcoBoost/Riley |
| 8 | 8 | 42 | P | Yacaman/Pla | 1:11.674 | 123.509 | 31 | 1.678 | 34 | Nissan Morgan |
| 9 | 9 | 07 | P | Joel.Miller/Nunez | 1:13.247 | 120.857 | 29 | 3.251 | 37 | Mazda Prototype |
| 10 | 10 | 70 | P | Tremblay/T.Long | 1:14.917 | 118.163 | 11 | 4.921 | 31 | Mazda Prototype |
| 11 | 1 | 56 | GTLM | Müller/J.Edwards | 1:15.270 | 117.609 | 5 | 5.274 | 31 | BMW Z4 GTE |
| 12 | 2 | 3 | GTLM | Magnussen/Garcia | 1:15.308 | 117.549 | 14 | 5.312 | 32 | Chevrolet Corvette C7.R |
| 13 | 3 | 91 | GTLM | D.Farnbacher/Goossens | 1:15.524 | 117.213 | 15 | 5.528 | 33 | Dodge Viper SRT |
| 14 | 4 | 4 | GTLM | Gavin/Milner | 1:15.539 | 117.190 | 18 | 5.543 | 32 | Chevrolet Corvette C7.R |
| 15 | 5 | 17 | GTLM | Henzler/Sellers | 1:15.712 | 116.922 | 33 | 5.716 | 38 | Porsche 911 RSR |
| 16 | 6 | 93 | GTLM | Bomarito/Wittmer | 1:15.792 | 116.799 | 7 | 5.796 | 25 | Dodge Viper SRT |
| 17 | 7 | 55 | GTLM | Auberlen/Priaulx | 1:15.998 | 116.482 | 13 | 6.002 | 34 | BMW Z4 GTE |
| 18 | 8 | 912 | GTLM | P.Long/Christensen | 1:16.084 | 116.350 | 25 | 6.088 | 36 | Porsche 911 RSR |
| 19 | 9 | 911 | GTLM | Tandy/Lietz | 1:16.132 | 116.277 | 18 | 6.136 | 33 | Porsche 911 RSR |
| 20 | 10 | 62 | GTLM | Fisichella/Kaffer | 1:16.650 | 115.491 | 16 | 6.654 | 41 | Ferrari F458 Italia |
| 21 | 1 | 73 | GTD | Lindsey/Estre | 1:19.033 | 112.009 | 11 | 9.037 | 17 | Porsche 911 GT America |
| 22 | 2 | 22 | GTD | MacNeil/Keen | 1:19.123 | 111.882 | 29 | 9.127 | 34 | Porsche 911 GT America |
| 23 | 3 | 007 | GTD | Carter/Davison | 1:19.368 | 111.536 | 2 | 9.372 | 21 | Aston Martin V12 Vantage |
| 24 | 4 | 48 | GTD | Haase/B.Miller | 1:19.406 | 111.483 | 28 | 9.410 | 36 | Audi R8 LMS |
| 25 | 5 | 45 | GTD | Canache Jr./Pumpelly/von Moltke | 1:19.498 | 111.354 | 15 | 9.502 | 36 | Audi R8 LMS |
| 26 | 6 | 81 | GTD | Barker/Faulkner | 1:19.507 | 111.341 | 25 | 9.511 | 35 | Porsche 911 GT America |
| 27 | 7 | 63 | GTD | Balzan/Westphal | 1:19.534 | 111.303 | 10 | 9.538 | 37 | Ferrari 458 Italia |
| 28 | 8 | 58 | GTD | Snow/Heylen | 1:19.547 | 111.285 | 23 | 9.551 | 29 | Porsche 911 GT America |
| 29 | 9 | 555 | GTD | Sweedler/To.Bell | 1:19.601 | 111.210 | 10 | 9.605 | 33 | Ferrari 458 Italia |
| 30 | 10 | 33 | GTD | J.Bleekemolen/Keating | 1:19.640 | 111.155 | 9 | 9.644 | 28 | Dodge Viper SRT |
| 31 | 11 | 94 | GTD | Cameron/Palttala | 1:19.659 | 111.129 | 5 | 9.663 | 32 | BMW Z4 |
| 32 | 12 | 44 | GTD | Potter/Lally | 1:19.717 | 111.048 | 9 | 9.721 | 31 | Porsche 911 GT America |
| 33 | 13 | 23 | GTD | James/M.Farnbacher | 1:19.895 | 110.800 | 31 | 9.899 | 31 | Porsche 911 GT America |
| 34 | 14 | 27 | GTD | Dempsey/A.Davis | 1:20.027 | 110.618 | 16 | 10.031 | 33 | Porsche 911 GT America |
| 35 | 15 | 35 | GTD | Neiman/von Moltke/Pumpelly | 1:20.185 | 110.400 | 26 | 10.189 | 31 | Audi R8 LMS |
| 36 | 16 | 46 | GTD | Espenlaub/Putman | 1:20.822 | 109.530 | 12 | 10.826 | 36 | Audi R8 LMS |
| 37 | 17 | 18 | GTD | Thomas/Green | 1:20.906 | 109.416 | 23 | 10.910 | 32 | Porsche 911 GT America |
| 38 | 11 | 0 | P | Meyrick/Legge | -.— | — | 0 | 0 | DeltaWing DWC13 |