In der Klasse 450MX wird der 450MX-Rookie Adam Cianciarulo von der Poleposition aus in die Wertungsrennen des Ironman National starten. Der Kawasaki-Pilot legte im Zeittraining eine Rundenzeit von 2:09.464 Minuten vor und war damit acht Zehntelsekunden schneller als Red-Plate-Inhaber Zach Osborne (Husqvarna), der von Platz zwei in die Rennen gehen wird. Drittschnellster Fahrer im Zeittraining war der Franzose Marvin Musquin (KTM). Titelverteidiger Eli Tomac (Kawasaki) musste sich mit Rang dreizehn in der Startaufstellung begnügen.
Ergebnisse Klasse 450MX Zeittraining
1. Adam Cianciarulo (KAW), 2:09.464
2. Zachary Osborne (HUS), 2:10.264
3. Marvin Musquin (KTM), 2:10.687
4. Justin Barcia (YAM), 2:10.864
5. Chase Sexton (HON), 2:10.963
6. Jason Anderson (HUS), 2:12.412
7. Max Anstie (SUZ), 2:12.516
8. Fredrik Noren (SUZ), 2:12.900
9. Benny Bloss (HUS), 2:12.988
10. Broc Tickle (YAM), 2:13.084
11. Blake Baggett (KTM), 2:13.368
12. Joseph Savatgy (SUZ), 2:13.382
13. Eli Tomac (KAW), 2:13.516
14. Christian Craig (HON), 2:13.873
15. Justin Bogle (KTM), 2:14.394
16. Dean Wilson (HUS), 2:14.801
17. Jeremy Smith (KAW), 2:16.166
18. Coty Schock (HON), 2:16.930
19. Justin Rodbell (KAW), 2:17.355
20. John Short (HON), 2:17.646
21. Henry Miller (KTM), 2:17.652
22. Luke Renzland (HUS), 2:17.705
23. Tyler Bowers (KAW), 2:17.779
24. Jared Lesher (KTM), 2:17.946
25. Jake Masterpool (HUS), 2:18.474
26. Dalton Dyer (KAW), 2:19.044
27. Tristan Lane (KTM), 2:19.057
28. Chase Felong (HUS), 2:19.569
29. Carson Tickle (HON), 2:19.738
30. Tristan Lewis (YAM), 2:19.935
31. Ben LaMay (KTM), 2:20.050
32. McClellan Hile (KTM), 2:20.801
33. Adam Enticknap (SUZ), 2:20.855
34. Christopher Prebula (KTM), 2:20.856
35. Luke Neese (HON), 2:20.868
36. Matthew Hubert (KAW), 2:21.323
37. Bryce Backaus (YAM), 2:21.379
38. Alex Ray (KAW), 2:21.614
39. TJ Albright (HUS), 2:21.923
40. Scott Meshey (HUS), 2:22.218
41. Timothy Crosby (KAW), 2:22.768
42. Cory Carsten (SUZ), 2:22.805
43. Austin Wagner (HON), 2:22.901
44. Felix Lopez (KTM), 2:23.042
45. Grant Harlan (HON), 2:23.266
46. Kyle Murdoch (HUS), 2:24.512
47. Justin Wolf (KAW), 2:25.063
48. Nicolas Rolando (KTM), 2:25.238
49. Carter Stephenson (YAM), 2:25.375
50. Renato Paz (KTM), 2:25.755
51. Tylor Skodras (HUS), 2:26.321
52. Matthew Toth (HON), 2:26.566
53. Dylan Kappeler (HUS), 2:26.828
54. Josh Heintz (KAW), 2:27.879
55. Jorge Rubalcava (HUS), 2:28.549
56. Austin Walker (KAW), 2:29.013
57. Tyler Gosnell (YAM), 2:29.617
58. Matthew Carpenter (KTM), 2:29.977
59. Kyle Endriss (YAM), 2:30.014
60. DJ Christie (KTM), 2:30.227
61. Brent Rouse (HON), 2:30.580
62. Hunter Braun (HON), 2:31.444
63. Joshua Greco (KTM), 2:31.649
64. Samuel Greenawalt (YAM), 2:31.946
65. Noah Chambers (KAW), 2:32.078
66. Aaron Leininger (HON), 2:32.421
67. Travis Delnicki (YAM), 2:32.445
68. Ivon Hays (HON), 2:32.980
69. Dawson Chesnut (KAW), 2:33.392
70. Kyle Ianuale (KTM), 2:33.480
71. Travis Prier (HON), 2:33.573
72. Travis Thompson (YAM), 2:33.722
73. Kyle Koosmann (YAM), 2:33.968
74. Grant Smith (YAM), 2:34.611
75. Jeffrey Walker (KTM), 2:35.913
76. Cody Briner (KAW), 2:35.967
77. Dominic DeSimone (HON), 2:37.344
78. Michael Lennon (YAM), 2:38.175
79. Nicholas Neys (KAW), 2:38.325
80. Brandon Green (YAM), 2:38.375
81. Cody Siler (YAM), 2:39.674
82. James Cooper (YAM), 2:40.308
83. Gabe Woodrow (KAW), 2:41.021
84. Nicholas Tomasunas (YAM), 2:42.161
85. Michael Kitzmiller (YAM), 2:42.269
86. Aerian Weaver (HON), 2:45.019
87. Christopher Gebken (HON), 2:56.862
88. John Snow (HON), 2:58.661
