Shown below is the list of accepted teams for the 2021 National Cup Olders tournament for the age group.
   
Boys 2004/17U 40 - Accepted Teams
Group Club/Team Name Team ID  Head Coach
 A1 Oxnard United Soccer Club
Oxnard United Soccer Club Blue
0750-01CB04-0154   Robert Marshall
 A2 Central Coast Condors
Central Coast Condors - B04
0715-01CB04-2004   Eliseo Romero
 A3 Antelope Valley Futbol Club
Antelope Valley Futbol Club - B2004
0624-01CB04-2010   Gilberto Lopez
 A4 FRAM Soccer Club
FRAM B04 - Chovkovy
0487-01CB04-0048   Oleg Chovkovy
 B1 Roadrunner United FC
Runners FC Blue - B04
0634-01CB04-9862   Russ Miller
 B2 San Diego Real Madrid Elite - 01
SD Real Madrid Elite B2004 (Zamora)
0157-01CB04-9942   Oscar Zamora
 B3 Apple Valley Soccer Club
AVSC STORM ACADEMY B04
0547-01CB04-3312   Paul Casarez
 B4 Central California Aztecs
Albion SC Central Cal B04 Academy
0629-01CB04-0209   Troy Lynch
 C1 Fontana Futbol Club - 01
Fontana Futbol Club - 01 - B2004
0595-01CB04-1942   Francisco Carranza
 C2 Strikers FC North
Strikers FC North B04 Gray BN
0394-01CB04-0161   Blake Nunes
 C3 Coast Soccer League 0301 - 01
UIFC Panthers
0301-01CB04-9974   Francisco Arnaud
 C4 Downtown LA Soccer Club
DTLA SC - B04 NPL
0491-01CB04-0824   Bryant Molina
 D1 RSF Attack
Attack B04 Academy
0215-02CB04-0977   Nathan Hetherington
 D2 Foothill Storm - 01
Foothill Storm
0436-01CB04-4675   Michael Armas
 D3 Riverside City FC - 01
Riverside City FC - B2004 Academy
0513-01CB04-6588   James Harrop
 D4 Laguna United FC
Laguna United FC-B2004-Blue
0368-04CB04-1192   Marcelo Aguirre
 E1 Oxnard United Soccer Club
Oxnard United Soccer Club
0750-01CB04-0148   David Reyes Rosas
 E2 Cerritos Regional Soccer League - 01
CDA FC Slammers- Orange B04 Hernandez
0463-01CB04-1894   Manuel Hernandez
 E3 Aztecs Futbol Club 0128 - 01
Aztecs Chula Vista United B04 Elite
0128-01CB04-0002   Daniel Villalva
 E4 LAFF
LASC B04 Bravo
040C-01CB04-0004   German Bravo
 F1 Simi Valley Soccer Club - Eclipse 0722 - Club - 56
Simi Valley S.C. Eclipse
0722-56CB04-0510   Gabriel Lopez
 F2 Milan SC 0549 - 01
Milan EFC B2004 Academy I
0549-01CB04-8735   Pedro Fuentes
 F3 FC Valencia
FC Valencia - B2004 - SWAP
0454-01CB04-8441   Rafael Moran
 F4 LAFF
LASC B04 Garcia
040C-01CB04-9758   Hernan Garcia Guardado
 G1 Coast Soccer League 0301 - 01
FC Deportivo Warriors
0301-01CB04-3377   Erik Perez
 G2 Downtown LA Soccer Club
Downtown LA Soccer Club South Bay - B2004
0491-01CB04-2424   Juan Martinez
 G3 Eagles Soccer Club
Eagles Soccer Club - B2004
0720-01CB04-0604   Jack Drew
 G4 Pateadores Soccer Club
Pateadores SCV B2004
0321-01CB04-0404   James Rickard
 H1 Pateadores Soccer Club
Pateadores LA B2004
0321-01CB04-5185   Gustavo Garrido
 H2 Santa Barbara S.C. 0710 - 01
Santa Barbara S.C. B2004Elite
0710-01CB04-1192   Goffin Boyoko
 H3 SpartansF.C - 01
Spartans San Lorenzo F.C B2004
0488-01CB04-7986   Humberto Tinoco
 H4 CZ Elite Soccer - 01
CZ Elite Soccer B04 Villegas
0469-01CB04-9210   Juan Villegas
 I1 Boca OC
Boca OC B04 White
0302-11CB04-3042   David Arvizu
 I2 Tigres Academy UANL CA
Tigres Academy UANL California B04 Black
0397-01CB04-9552   Ramon Ambriz
 I3 Downtown LA Soccer Club
DTLA SC - B04 Pirates
0491-01CB04-9676   Joshua Alcala
 I4 Anaheim Futbol Club 01 - Competitive
Anaheim FC B2004 Lazare
0384-01CB04-2012   Sheryl Lazare
 J1 Team 90 - 01
California Rush B04 Nero
0387-01CB04-0031   Gabriel Lucatero
 J2 Beach Futbol Club-01
Beach FC ECRL Piriz Murriagui
0423-01CB04-9185   Carlos Piriz Murriagui
 J3 Oceanside Breakers
Oceanside Breakers - B2004 Blk SYL
0204-01CB04-0036   Frank Zimmerman
 J4 P2KS Soccer
P2KS Chelsea A.F
0451-01CB04-9377   Chad Quinn