Fullback
Player Age Opposition Ground Date Match
BE Erb 19y 349d v Australia Berkeley 16 Nov 1912 Details
B Cima 21y 82d v Ireland Harrison 10 Jun 2017 Details
RB Nelson 22y 0d v Canada Burnaby Lake 11 Jun 1983 Details
JR Buchholz 22y 82d v Canada Kingston 19 May 2001 Details
MP Te'o 22y 212d v Chile Fort Lauderdale 20 Feb 2016 Details
C Howard 22y 363d v NZ XV San Diego 8 Oct 1980 Details
F Viljoen 23y 14d v Russia Tokyo 30 May 2004 Details
LM Wilfley 23y 50d v Chile Santiago 24 Aug 2002 Details
RL Templeton 23y 101d v France XV Antwerp 5 Sep 1920 Details
BH Scully 23y 109d v Russia Worcester 18 Jun 2011 Details

Wing
Player Age Opposition Ground Date Match
DC Mikesell 19y 58d v Uruguay Montevideo 5 Mar 2016 Details
JK Naqica 21y 82d v England San Francisco 16 Jun 2001 Details
SB Peart 21y 328d v Australia Berkeley 16 Nov 1912 Details
GM Hein 22y 38d v Tunisia Pebble Beach 3 May 1987 Details
T Ngwenya 22y 48d v England Lens 8 Sep 2007 Details
C Hawley 22y 72d v Georgia Commerce City 21 Jun 2009 Details
J Boyd 22y 77d v Ireland A Kingston 11 Jun 2008 Details
WL Rogers 22y 102d v France Colombes 18 May 1924 Details
KG Higgins 22y 164d v Japan Tokyo 21 Apr 1985 Details
MP Te'o 22y 338d v Russia Sacramento 25 Jun 2016 Details

Centre
Player Age Opposition Ground Date Match
L Thomas 19y 29d v Chile Fort Lauderdale 20 Feb 2016 Details
HL Wrenn 20y 231d v France XV Antwerp 5 Sep 1920 Details
PT Eloff 21y 253d v Japan Osaka 27 May 2000 Details
JC Patrick 21y 285d v France XV Antwerp 5 Sep 1920 Details
LM Wilfley 21y 325d v Uruguay Markham 26 May 2001 Details
R Green 21y 359d v Ireland Lansdowne Road 5 Nov 1994 Details
S Kelly 22y 9d v Ireland Houston 8 Jun 2013 Details
BA Campbell 22y 52d v Romania Bucharest 12 Nov 2016 Details
T Enosa 22y 79d v Japan Tokyo 21 Aug 2011 Details
R Suniula 22y 165d v Ireland Santa Clara 31 May 2009 Details

Fly-half
Player Age Opposition Ground Date Match
B Cima 20y 321d v Uruguay San Antonio 4 Feb 2017 Details
W Holder 21y 82d v Canada Kingston 9 Jun 2012 Details
V Malifa 21y 250d v England A Stockport 18 May 2007 Details
LM Wilfley 22y 149d v South Africa Houston 1 Dec 2001 Details
MMM Hercus 23y 17d v Scotland San Francisco 22 Jun 2002 Details
AP Malifa 23y 269d v Wales Chicago 6 Jun 2009 Details
CP O'Brien 23y 311d v Canada Saranac Lake 11 Jun 1988 Details
T L'Estrange 24y 68d v Russia Colwyn Bay 9 Nov 2012 Details
RJ Scholz 24y 80d v France XV Antwerp 5 Sep 1920 Details
M Sherman 24y 242d v England A Vancouver 28 Jun 2003 Details

Scrum-half
Player Age Opposition Ground Date Match
RP de Haas 20y 32d v Samoa San Sebastian 10 Nov 2018 Details
MP Te'o 22y 205d v Canada TX 13 Feb 2016 Details
K Dalzell 22y 240d v Uruguay Markham 21 Sep 1996 Details
TW Bliss 22y 345d v Chile Fort Lauderdale 20 Feb 2016 Details
LM Morris 23y 38d v Australia Berkeley 16 Nov 1912 Details
A Bachelet 23y 100d v Canada Winnipeg 19 Jun 1993 Details
MZ Petri 23y 296d v England A Ottawa 7 Jun 2008 Details
L Cass 23y 364d v New Zealand Berkeley 15 Nov 1913 Details
NA Kruger 23y 363d v South Africa London 7 Oct 2015 Details
CT Mehan 24y 113d v France XV Antwerp 5 Sep 1920 Details

Prop
Player Age Opposition Ground Date Match
TE Lamositele 18y 285d v Russia Barnet 23 Nov 2013 Details
DF Ainu'u 19y 102d v Uruguay Seattle 2 Mar 2019 Details
MS MacDonald 20y 173d v Canada Kingston 19 May 2001 Details
JL McKim 21y 83d v Australia Berkeley 16 Nov 1912 Details
S Pittman 21y 150d v Georgia Commerce City 21 Jun 2009 Details
CA Wenglewski 21y 172d v Brazil TX 23 Feb 2019 Details
B Tarr 22y 331d v Brazil TX 11 Feb 2017 Details
JA Tarpoff 23y 77d v England A Vancouver 21 Jun 2003 Details
RP Lehner 23y 180d v Canada Markham 9 Sep 1995 Details
N Wallace 23y 246d v Fiji Nagoya 19 Jun 2013 Details

Hooker
Player Age Opposition Ground Date Match
JT O'Neil 21y 337d v France XV Antwerp 5 Sep 1920 Details
EB Hall 22y 236d v New Zealand Berkeley 15 Nov 1913 Details
MA Sosene-Feagai 22y 302d v Canada TX 13 Feb 2016 Details
PD Malcolm 22y 337d v Uruguay San Antonio 4 Feb 2017 Details
KS Schubert 22y 354d v Canada Chicago 13 Jul 2002 Details
KA Khasigian 23y 30d v Japan Osaka 27 May 2000 Details
JS Taufete'e 23y 139d v Chile Fort Lauderdale 20 Feb 2016 Details
C Biller 23y 232d v Ireland Santa Clara 31 May 2009 Details
ZT Fenoglio 23y 300d v Canada Edmonton 25 May 2013 Details
P Thiel 25y 16d v Uruguay Montevideo 14 Nov 2009 Details

Lock
Player Age Opposition Ground Date Match
LE Stanfill 19y 360d v Canada Tokyo 25 May 2005 Details
S Mahoni 20y 27d v Chile Santiago 25 Feb 2017 Details
JG Hunter 20y 337d v France XV Antwerp 5 Sep 1920 Details
S LaValla 21y 336d v Russia Glendale 5 Jun 2010 Details
AM Freeman 22y 17d v Canada Markham 9 Sep 1995 Details
A Parker 22y 59d v Hong Kong Hong Kong 8 Jun 1996 Details
LM Farrish 22y 228d v France Colombes 18 May 1924 Details
M Kane 22y 284d v Japan Osaka 27 May 2000 Details
AC Valentine 23y 78d v Romania Colombes 11 May 1924 Details
HW Smith 23y 212d v Uruguay Sandy 8 Nov 2008 Details

Flanker
Player Age Opposition Ground Date Match
S Paga 20y 202d v Canada Burlington 6 Jun 1998 Details
FJ Gard 20y 234d v Australia Berkeley 16 Nov 1912 Details
HL Wrenn 20y 266d v France Colombes 10 Oct 1920 Details
KS Schubert 20y 308d v Japan Osaka 27 May 2000 Details
HJEL Germishuys 21y 170d v Canada Sacramento 10 Feb 2018 Details
B Warhurst 21y 256d v Canada Burnaby Lake 11 Jun 1983 Details
A Petruzzella 21y 284d v Canada Edmonton 19 Jun 2004 Details
WN King 21y 349d v Australia Berkeley 16 Nov 1912 Details
LE Stanfill 21y 353d v England A Stockport 18 May 2007 Details
TS Clever 22y 129d v Canada Tokyo 25 May 2005 Details

No. 8
Player Age Opposition Ground Date Match
N Johnson 19y 239d v Ireland Santa Clara 31 May 2009 Details
KS Schubert 20y 342d v Fiji Apia 30 Jun 2000 Details
S Paga 21y 222d v Samoa Apia 26 Jun 1999 Details
MS MacDonald 21y 228d v Canada Chicago 13 Jul 2002 Details
LE Stanfill 21y 358d v Scotland A Henley 23 May 2007 Details
WN King 22y 347d v New Zealand Berkeley 15 Nov 1913 Details
JTTT Fa'anana-Schultz 23y 58d v Japan Suva 10 Aug 2019 Details
CA Dolan 23y 104d v Fiji Nagoya 19 Jun 2013 Details
G Lambert 23y 149d v England XV Hartford 19 Jun 1982 Details
RA Lumkong 23y 221d v Bermuda Hamilton 12 Mar 1994 Details

Substitute (excluding unused substitute)
Player Pos Age Opposition Ground Date Match
TE Lamositele (P) 18y 187d v Canada Charleston 17 Aug 2013 Details
DF Ainu'u (P) 18y 355d v Samoa San Sebastian 10 Nov 2018 Details
TD Palamo (W) 19y 8d v South Africa Montpellier 30 Sep 2007 Details
RP de Haas (SH) 19y 131d v Chile Fullerton 17 Feb 2018 Details
K Pifeleti (P) 19y 175d v Brazil TX 23 Feb 2019 Details
HJEL Germishuys (F) 19y 187d v Brazil Sao Paulo 27 Feb 2016 Details
MS MacDonald (P) 19y 216d v Fiji Apia 30 Jun 2000 Details
S Mahoni (L) 20y 20d v Canada Vancouver 18 Feb 2017 Details
DC Mikesell (SH) 20y 35d v Brazil TX 11 Feb 2017 Details
TS Clever (BR) 20y 219d v Argentina Buenos Aires 23 Aug 2003 Details

Only the player's first appearance listed; Only includes matches where the player starts in the respective position, and excludes matches as a substitute.

Records include the following current or recent matches:
United States of America v Canada at Glendale, Pacific Nations Cup, Jul 27, 2019 [47-19 FT]
United States of America v Canada at Seattle, Americas Rugby Championship, Mar 8, 2019 [30-25 FT]
United States of America v Uruguay at Seattle, Americas Rugby Championship, Mar 2, 2019 [25-32 FT]