| 2011 |
| (Eugene, June 25) |
| 1 | Allyson Felix (Nik) | 50.40 | | |
| 2 | Francena McCorory (adi) | 50.49 | | |
| 3 | Debbie Dunn (Nik) | 50.70 | | |
| 4 | Jessica Beard (TxAM) | 51.06 | | |
| 5 | Natasha Hastings (Nik) | 51.14 | | |
| 6 | DeeDee Trotter (Sauc) | 51.17 | | |
| 7 | Keshia Baker (Sauc) | 52.21 | | |
| 8 | Mary Wineberg (NYAC) | 52.26 | | |
| 2010 |
| (Des Moines, June 26) |
| 1 | Debbie Dunn (Nik) | 49.64 | | |
| 2 | Francena McCorory (Hamp) | 50.52 | | |
| 3 | Natasha Hastings (Nik) | 50.53 | | |
| 4 | Monica Hargrove (UArm) | 51.16 | | |
| 5 | Shana Cox (adi) | 51.64 | | |
| 6 | Angee Henry (TNb) | 51.96 | | |
| 7 | Alycia Williams (unat) | 52.59 | | |
| dnc | Sanya Richards-Ross (Nik) injured | | | |
| 2009 |
| (Eugene, June 27) |
| 1 | Sanya Richards (Nik) | 50.05 | | |
| 2 | Debbie Dunn (unat) | 50.79 | | |
| 3 | Jessica Beard (TxAM) | 50.81 | | |
| 4 | Natasha Hastings (Nik) | 50.89 | | |
| 5 | Shareese Woods (adi) | 51.05 | | |
| 6 | Monica Hargrove (unat) | 51.60 | | |
| 7 | Dominique Darden (Reeb) | 52.19 | | |
| 8 | Keshia Baker (Or) | 52.47 | | |
| 2008 |
| (Eugene, July 3) |
| 1 | Sanya Richards (Nik) | 49.89 | | |
| 2 | Mary Wineberg (Nik) | 50.85 | | |
| 3 | Dee Dee Trotter (adi) | 50.88 | | |
| 4 | Monique Henderson (Reeb) | 50.98 | | |
| 5 | Natasha Hastings (Nik) | 51.13 | | |
| 6 | Ebonie Floyd (Nik) | 51.26 | | |
| 7 | Monica Hargrove (unat) | 51.94 | | |
| 8 | Debbie Dunn (NRD) | 52.41 | | |
| 2007 |
| (Indianapolis, June 23) |
| 1 | Dee Dee Trotter (adi) | 49.64 | | |
| 2 | Natasha Hastings (SC) | 49.84 | | |
| 3 | Mary Wineberg (Nik) | 50.24 | | |
| 4 | Sanya Richards (Nik) | 50.68 | | |
| 5 | Monique Henderson (Reeb) | 50.82 | | |
| 6 | Monique Hennagan (Nik) | 51.28 | | |
| 7 | Moushaumi Robinson (Nik) | 51.47 | | |
| 8 | Shana Cox (PennSt) | 52.23 | | |
| 2006 |
| (Indianapolis, June 24) |
| 1 | Sanya Richards (Nik) | 49.27 | | |
| 2 | Dee Dee Trotter (adi) | 50.40 | | |
| 3 | Monique Henderson (Reeb) | 50.71 | | |
| 4 | Moushaumi Robinson (Nik) | 51.13 | | |
| 5 | Mary Danner (Nik) | 51.27 | | |
| 6 | Crystal Cox (Nik) | 51.34 | | |
| 7 | Shana Cox (PennSt) | 51.36 | | |
| 8 | Monique Hennagan (Nik) | 51.46 | | |
| 2005 |
| (Carson, Calif., June 25) |
| (20 contestants, 9 finalists) |
| 1 | Sanya Richards (Nik) | 49.28 | | |
| 2 | Dee Dee Trotter (adi) | 49.88 | | |
| 3 | Monique Henderson (Reeb) | 49.96 | | |
| 4 | Moushami Robinson (Nik) | 50.38 | | |
| 5 | Monique Hennagan (Nik) | 50.76 | | |
| 6 | Suziann Reid (Nik) | 51.45 | | |
| 7 | Julian Clay (Nik) | 51.70 | | |
| 8 | Stephanie Smith (SC) | 51.83 | | |
| 2004 |
| (Sacramento, July 17) |
| (22 contestants, 8 finalists) |
| 1 | Monique Hennagan (adi) | 49.56 | | |
| 2 | Sanya Richards (Nik) | 49.89 | | |
| 3 | Dee Dee Trotter (Tn) | 50.28 | | |
| 4 | Crystal Cox (Nik) | 50.52 | | |
| 5 | Monique Henderson (UCLA) | 50.75 | | |
| 6 | Moushami Robinson (Nik) | 51.54 | | |
| 7 | Suziann Reid (Nik) | 51.61 | | |
| 8 | Debbie Dunn (Nik) | 51.93 | | |
| 2003 |
| Stanford, June 21 |
| 21 contestants, 8 finalists |
| 1 | Sanya Richards (Tx) | 51.01 | | |
| 2 | Demetria Washington (Nik) | 51.54 | | |
| 3 | Dee Dee Trotter (Tn) | 51.78 | | |
| 4 | Moushaumi Robinson (Tx) | 51.93 | | |
| 5 | Lisa Barber (Nik) | 52.04 | | |
| 6 | Crystal Cox (NC) | 52.07 | | |
| 7 | Julian Clay (unat) | 52.47 | | |
| 8 | Jessica Fox (Wy) | 52.58 | | |
| 2002 |
| Stanford, June 23 |
| 15 contestants, 8 finalists |
| 1 | Jearl Miles Clark (NBal) | 50.91 | | |
| 2 | Michelle Collins (Nik) | 51.20 | | |
| 3 | Monique Hennagan (adi) | 51.34 | | |
| 4 | L. Colander-Richardson (Nik) | 51.42 | | |
| 5 | Demetria Washington (SC) | 51.59 | | |
| 6 | Suziann Reid (adi) | 52.69 | | |
| 7 | Tia Trent (InTC) | 52.71 | | |
| 8 | Lisa Barber (SC) | 53.90 | | |
| 2001 |
| Eugene, June 24 |
| 16 contestants, 8 finalists |
| 1 | LaTasha C.-Richardson (Nik) | 50.79 | | |
| 2 | Michelle Collins (Nik) | 51.00 | | |
| 3 | Monique Hennagan (adi) | 51.20 | | |
| 4 | Demetria Washington (SC) | 51.70 | | |
| 5 | Suziann Reid (adi) | 52.06 | | |
| 6 | Miki Barber (SC) | 52.70 | | |
| 7 | Lisa Barber (SC) | 53.55 | | |
| dnc--Jearl Miles Clark (NBal) |
| 2000 |
| Sacramento, July 16 |
| 23 contestants, 8 finalists |
| 1 | L. Colander-Richardson (Nik) | 49.87 | | |
| 2 | Jearl Miles Clark (Reeb) | 50.23 | | |
| 3 | Michelle Collins (Nik) | 50.29 | | |
| 4 | Monique Hennagan (adi) | 50.82 | | |
| 5 | Miki Barber (SC) | 51.17 | | |
| 6 | Andrea Anderson (GRF) | 51.32 | | |
| 7 | Maicel Malone (NBal) | 51.39 | | |
| 8 | Monique Henderson (CaHS) | 51.79 | | |
| 1999 |
| Eugene, June 27 |
| 23 contestants, 8 finalists |
| 1 | Maicel Malone (NBal) | 51.29 | | |
| 2 | Suziann Reid (Tx) | 51.38 | | |
| 3 | Michelle Collins (Nik) | 51.45 | | |
| 4 | Andrea Anderson (GMR) | 52.09 | | |
| 5 | Shanelle Porter (USW) | 52.25 | | |
| 6 | Yulanda Nelson (Bay) | 52.61 | | |
| 7 | Kim Graham (Asics) | 52.95 | | |
| 8 | Miki Barber (SC) | 53.05 | | |
| 1998 |
| New Orleans, June 21 |
| 21 contestants, 8 finalists |
| 1 | Kim Graham (Asics) | 50.69 | | |
| 2 | Rochelle Stevens (RS) | 51.07 | | |
| 3 | Monique Hennagan (NC) | 51.11 | | |
| 4 | Toya Brown (Tx) | 51.13 | | |
| 5 | Shanelle Porter (USW) | 51.17 | | |
| 6 | Michelle Collins (unat) | 51.19 | | |
| 7 | Natasha Kaiser-Brown (HSou) | 51.53 | | |
| 8 | Maicel Malone (Asics) | 51.91 | | |
| 1997 |
| Indianapolis, June 14 |
| 20 contestants, 8 finalists |
| 1 | Jearl Miles Clark (Reeb) | 49.40 | MR | |
| 2 | Kim Graham (Asics) | 50.65 | | |
| 3 | Maicel Malone (Asics) | 50.74 | | |
| 4 | Michelle Collins (unat) | 50.77 | | |
| 5 | Natasha Kaiser-Brown (HSou) | 51.21 | | |
| 6 | Shanelle Porter (USW) | 51.22 | | |
| 7 | Chandra Burns (MiSt) | 51.71 | | |
| 8 | Jessica Hudson (LaG) | 52.23 | | |
| 1996 |
| Atlanta, June 19 |
| 27 contestants, 8 finalists |
| 1 | Maicel Malone (Asics) | 50.52 | | |
| 2 | Jearl Miles Clark (Reeb) | 50.61 | | |
| 3 | Kim Graham (Asics) | 50.87 | | |
| 4 | Rochelle Stevens (Pos) | 51.16 | | |
| 5 | Linetta Wilson (SBTC) | 51.49 | | |
| 6 | Natasha Kaiser-Brown (FLAC) | 51.52 | | |
| 7 | Nicole Green (Pow) | 51.95 | | |
| 8 | Youlanda Warren (unat) | 52.10 | | |
| 1995 |
| Sacramento, June 17 |
| 20 contestants, 8 finalists |
| 1 | Jearl Miles Clark (Reeb) | 50.90 | | |
| 2 | Kim Graham (Nik) | 51.48 | | |
| 3 | Maicel Malone (Asics) | 51.56 | | |
| 4 | Rochelle Stevens (Pos) | 51.97 | | |
| 5 | Nicole Green (Pow) | 52.02 | | |
| 6 | Camara Jones (Or) | 52.23 | | |
| 7 | Youlanda Warren (LSU) | 52.25 | | |
| 8 | Michelle Collins (MizH) | 52.56 | | |
| 1994 |
| Knoxville, June 18 |
| 23 contestants, 8 finalists |
| 1 | Natasha Kaiser-Brown (FLAC) | 50.53 | | |
| 2 | Maicel Malone (Asics) | 50.77 | | |
| 3 | Jearl Miles Clark (Reeb) | 50.78 | | |
| 4 | Kim Graham (adi) | 51.43 | | |
| 5 | Michelle Collins (MizH) | 51.63 | | |
| 6 | Rochelle Stevens (NikA) | 52.42 | | |
| 7 | Sheryl Covington (FlSt) | 52.60 | | |
| 8 | Crystal Irving (Atoms) | 52.80 | | |
| 1993 |
| Eugene, June 19 |
| 21 contestants, 8 finalists |
| 1 | Jearl Miles Clark (Reeb) | 50.43 | | |
| 2 | Natasha Kaiser-Brown (Cheet) | 50.93 | | |
| 3 | Michelle Collins (Hous) | 51.77 | | |
| 4 | Terri Dendy (AndI) | 52.13 | | |
| 5 | Youlanda Warren (LSU) | 52.21 | | |
| 6 | Maicel Malone (Maz) | 52.40 | | |
| 7 | Rochelle Stevens (May) | 52.56 | | |
| 8 | Kendra Mackey (Maz) | 54.80 | | |
| 1992 |
| New Orleans, June 24 |
| 32 contestants, 8 finalists |
| 1 | Rochelle Stevens (NikA) | 50.22 | | |
| 2 | Jearl Miles Clark (Reeb) | 50.30 | | |
| 3 | Natasha Kaiser-Brown (Cheet) | 50.42 | | |
| 4 | Dannette Young-Stone (Reeb) | 50.46 | | |
| 5 | Denean Hill (unat) | 50.89 | | |
| 6 | Anita Howard (Fl) | 51.30 | | |
| 7 | Lillie Leatherwood (Reeb) | 51.31 | | |
| 8 | Kendra Mackey (unat) | 51.72 | | |
| 1991 |
| New York City, June 15 |
| 23 contestants, 8 finalists |
| 1 | Lillie Leatherwood (Reeb) | 49.66 | MR | |
| 2 | Jearl Miles Clark (Reeb) | 50.19 | | |
| 3 | Diane Dixon (Atoms) | 50.30 | | |
| 4 | Maicel Malone (NikC) | 50.39 | | |
| 5 | Rochelle Stevens (NikI) | 51.03 | | |
| 6 | Natasha Kaiser-Brown (Cheet) | 51.82 | | |
| 7 | Celena Mondie-Milner (unat) | 51.91 | | |
| 8 | Tasha Downing (Maz) | 52.65 | | |
| 1990 |
| Norwalk, June 16 |
| 14 contestants, 8 finalists |
| 1 | Maicel Malone (NikC) | 51.23 | | |
| 2 | Rochelle Stevens (NikI) | 51.51 | | |
| 3 | Lillie Leatherwood (Reeb) | 51.60 | | |
| 4 | Natasha Kaiser-Brown (Cheet) | 51.69 | | |
| 5 | Jearl Miles Clark (Reeb) | 51.90 | | |
| 6 | Delisa Floyd (Flo) | 52.26 | | |
| 7 | Wendy Watson (Ok) | 52.53 | | |
| 8 | Tasha Downing (Fl) | 57.72 | | |
| 1989 |
| Houston, June 17 |
| 15 contestants, 9 finalists |
| 1 | Rochelle Stevens (ACC) | 50.75 | | |
| 2 | Jearl Miles Clark (Reeb) | 51.52 | | |
| 3 | Celena Mondie-Milner (Il) | 51.55 | | |
| 4 | Terri Dendy (Reeb) | 51.64 | | |
| 5 | Lillie Leatherwood (Reeb) | 51.75 | | |
| 6 | Natasha Kaiser (NikS) | 51.89 | | |
| 7 | Sandie Richards’ (Jam) | 52.09 | | |
| 8 | Michelle Taylor (Cheet) | 52.17 | | |
| 9 | Maicel Malone (NikC) | 52.20 | | |
| 1988 |
| Tampa, June 18 |
| 24 contestants, 8 finalists |
| 1 | Lillie Leatherwood (Reeb) | 50.70 | | |
| 2 | Maicel Malone (NikC) | 51.01 | | |
| 3 | Jearl Miles Clrk (YA) | 51.35 | | |
| 4 | Celena Mondie-Milner (Il) | 51.45 | | |
| 5 | Tanya McIntosh (Atoms) | 51.76 | | |
| 6 | Terri Dendy (Reeb) | 52.19 | | |
| 7 | Denise Mitchell (NikC) | 52.24 | | |
| 8 | Alice Jackson (Coke) | 54.49 | | |
| 1987 |
| San José, June 27 |
| 19 contestants, 8 finalists |
| 1 | Lillie Leatherwood (Al) | 49.95 | | |
| 2 | Diane Dixon (Atoms) | 50.62 | | |
| 3 | Denean Hill (SSTC) | 51.02 | | |
| 4 | Valerie Brisco (WC) | 51.28 | | |
| 5 | Sonja Fridy (Maz) | 51.69 | | |
| 6 | Denise Mitchell (Fl) | 51.72 | | |
| 7 | Rochelle Stevens (Morg) | 51.81 | | |
| 8 | Tanya McIntosh (Atoms) | 52.08 | | |
| 1986 |
| Eugene, June 21 |
| 16 contestants, 8 finalists |
| 1 | Diane Dixon (Atoms) | 50.41 | | |
| 2 | Lillie Leatherwood (NBal) | 51.29 | | |
| 3 | Brenda Cliette (unat) | 51.82 | | |
| 4 | Chandra Cheeseborough (AW) | 51.86 | | |
| 5 | Alice Jackson (Maz) | 52.37 | | |
| 6 | Denean Hill (Pum) | 52.79 | | |
| 7 | Robin Stephens (Hurr) | 53.12 | | |
| 8 | Terri Dendy (GM) | 53.51 | | |
| 400 METERS/440 YARDS |
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