The following is the 450cc class rider list for the Monster Energy National Presented by Centra Bank at High Point Raceway in Mt. Morris, Pennsylvania, round 4 of the 2009 Lucas Oil AMA Pro Motocross Championship.

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RACE#	FIRST NAME	LAST NAME	CITY	STATE
9	Ivan	Tedesco	Murrieta	CA
18	David	Millsaps	Murrieta	CA
21	Cody	Cooper	New Zealand
22	Chad	Reed	Australia
26	Michael	Byrne	Australia
27	Nicholas	Wey	Murrieta	CA
28	Charles	Summey	Huntersville	NC
29	Andrew	Short	Smithville	TX
33	Josh	Grant	Riverside	CA
37	Antonio	Balbi	Brazil
45	Jason	Thomas	Melrose	FL
47	James	Albertson	Ozark	MO
48	Thomas	Hahn	Decatur	TX
57	Jacob	Marsack	Allenton	MI
59	Troy	Adams	Homosassa	FL
71	Justin	Sipes	Vine Grove	KY
73	Gavin	Gracyk	South Bloomfield	OH
74	Branden	Jesseman	New Brighton	PA
75	Josh	Hill	Murrieta	CA
80	Tyler	Bright	Burlington	NC
94	Jacob	Morrison	Wareham	MA
95	Ben	LaMay	Anchorage	AK
96	Tyler	Wharton	Krugerville	TX
114	Justin	Brayton	Murrieta	CA
121	Jeff	Dement	Houston	TX
122	Daniel	Reardon	Australia
130	Kyle	Keylon	Brooksville	FL
157	Sean	Hackley Jr.	Ovilla	TX
177	Mitchell	Rask	Eagle Creek	OR
197	Jamie	Simpson	Kannapolis	NC
213	Kramer	Patterson	Cameron Park	CA
233	Justin	Berry	Edmond	OK
271	Brenner	Washel	Grove City	OH
279	Codi	Adams	Batavia	OH
280	Ryan	Gainey	Southampton	NJ
283	Kyle	Glass	Hudsonville	MI
315	Roy	Holt	Monroeville	PA
336	Dennis	Jonon	Spring Hill	KS
338	Jason	Lawrence	Carlsbad	CA
351	Shane	Sewell	Westville	IN
366	Thomas	Addy	Genoa	NY
376	Ray	Leybovich	Woodbourne	NY
388	Bryan	Wallace	New Eqypt	NJ
395	Benjamin	Ritter	St Marys	PA
398	Robert	Kraft	Charlotte Hall	MD
414	Brian	Shuckhart	White Oak	PA
418	Nicholas	Hayes	Chester	VA
425	Jarred	Browne		CA
455	Lucas	Moraes	Menifee	CA
468	Oscar	Diaz	San Antonio	FL
471	Ryan	Zimmerman	Narvon	PA
482	Cory	Green	Nowata	OK
491	David	Redding	Lexington	KY
514	Anthony	Roth	Cedar Run	NJ
519	Ryan	Vold	Weirdale	FL
526	Kirk	Allen	Pickerington	OH
539	Ricky	Dietrich	Merifee	CA
542	Matthew	Eastman	Lansing	NY
557	Jay	Weller	Montgomery	WY
597	Mitchell	Dougherty	Whitesboro	NY
605	Jesse	Casillas	Jamul	CA
606	Ronnie	Stewart	Easton	PA
629	Anthony	Boughten	Murrieta	CA
631	Weston	Peick	Wildomar	CA
643	Jake	Oswald	Alpine	CA
697	David	Costa	Potsdam	NY
773	Zachary	Miller	Laurel	MD
774	Robby	Marshall	Stow	MA
801	Jeff	Alessi	Victorville	CA
831	Ryan	Smith	Axton	VA
833	Todd	Stavac	Point Pleasant	NJ
881	Jerry	Lorenz	Morrice	MI
886	Chase	Couture	Naples	FL
901	Justin	McDonald	New Zealand
903	Luke	Burkhart	New Zealand
911	Tyler	Bowers	Danville	KY
924	Greg	Durivage	Waterville	OH
958	Aden	De Jager	Liberty	SC
987	Matthew	Babbitt	Cayuga	NY
995	Matthew	Cottrill	Chillicothe	OH