INDIANAPOLIS, IN - Sheena Johnson has been named USA Track & Field's Athlete of the Week after turning in a world-leading mark in the women's 400m hurdles Friday at the Pac-10 Track and Field Championships in Tucson, Arizona. Johnson also posted the fastest American time of the week in the 100m hurdles.

A senior at UCLA, Johnson ran a world-leading time of 54.32 seconds in the women's 400m hurdles preliminary round at Pac-10s. She went on to defend her 400m hurdle title on Saturday in 55.45 seconds. Johnson (Stafford, Va.) also ran a personal-best time of 12.76 seconds to win the 100m hurdles to become only the second woman in Pac-10 Conference history to repeat as 100m hurdles and 400m hurdles champion. In the 400m hurdles, Johnson is the first-ever four-time champion in the event and only the third woman in Pac-10 history to win an individual event all four years. Johnson also ran the second leg on UCLA's 4x100m relay team to finish first with a Pac-10 meet record time of 43.43 in leading UCLA to its eighth consecutive Pac-10 women's crown.

Another notable performer was Mississippi State University junior Tiffany McWilliams, who defended both her 2003 SEC Conference 1,500m and 800m titles. She took top honors in the 1,500m run in an SEC meet record time of 4:09.19. Later on McWilliams (Red Bay, Ala.), won the 800m in 2:01.96. Both performances are U.S. leaders.

Now in its fourth year, USATF's Athlete of the Week program is designed to recognize outstanding performers at all levels of the sport. USATF names a new honoree each week and features the athlete on the USATF website. Selections are based on top performances and results from the previous week.

BEST MARKS OF THE WEEK ENDING MAY 16

MEN

100 - 10.20 Ernest Wiggins (Appalachian State) - Atlanta, GA 5/15
200 - 20.43 Wes Felix (USC) - Tucson, AZ 5/15
400 - 44.82 Jason Barton (Arizona State) - Tucson, AZ 5/15
800 - 1:46.60 Paul Cross (Tennessee) - Oxford, MS 5/16
1500 - 3:41.36 Hunter Spencer (Kentucky) - Oxford, MS 5/16
3000SC - 8:46.59 Luke Mullranin (Minnesota) - West Lafayette, IN 5/15
110H - 13.31 Dominique Arnold (Unattached) - Doha, QAT 5/14
400H - 48.85 Brandon Johnson (UCLA) - Tucson, AZ 5/15
HJ - 7-4 Scott Sellers (Texas HS) - Austin, TX 5/15
PV - 5.94/19-5.75 Toby Stevenson (Nike) - Phoenix, AZ 5/14
LJ - 7.93/26-0.25 LeJuan Simon (LSU) - Oxford, MS 5/15
TJ - 17.16/56-3.75 Walter Davis (Nike) - Atlanta, GA 5/15
SP - 21.11/69-3.25 Christian Cantwell (Nike) - Manhattan, KS 5/15
DT - 62.91/206-5 Jason Young (Texas Tech) - Abilene, TX 5/14
HT - 71.15/233-5 A.G. Kruger (Ashland Elite) - Atlanta, GA 5/14
JT - 79.03/259-3 Breaux Greer (adidas) - Doha, QAT 5/14
Decathlon - 7724 Travis Brandstetter (Minnesota) - West Lafayette, IN 5/14

WOMEN

100 - 11.25 Muna Lee (LSU) - Oxford, MS 5/16
200 - 22.50 LaTasha Colander (Sprint Capital) - Doha, QAT 5/14
400 - 50.69 Dee Dee Trotter (Tennessee) - Oxford, MS 5/16 U.S. leader
800 - 2:01.00 Tiffany McWilliams (Mississippi State) - Oxford, MS 5/14 U.S. leader
1500 - 4:09.19 Tiffany McWilliams (Mississippi State) - Oxford, MS 5/16 U.S. leader
3000SC - 9:59.22 Brianna Shook (Toledo) - Oxford, OH 5/16
100H - 12.79 Sheena Johnson (UCLA) - Tucson, AZ 5/15
400H - 54.32 Sheena Johnson (UCLA) - Tucson, AZ 5/14 World leader
HJ - 1.91/6-3.25 Kaylene Wagner (Cal Poly SLO) - Irvine, CA 5/15
PV - 4.60/15-1 Jillian Schwartz (Nike) & Stacy Dragila (Nike) - Phoenix, AZ 5/14
LJ - 6.59/21-7.5 Hyleas Fountain (Georgia) - Oxford, MS 5/15
TJ - 13.61/44-8 Candice Baucham (UCLA) - Tucson, AZ 5/15
SP - 17.63/57-10.25 Jillian Camarena (Stanford) - Tucson, AZ 5/14
DT - 62.51/205-1 Aretha Hill (Nike) - Doha, QAT 5/14
HT - 69.42/227-9 Erin Gilreath (NYAC) - Atlanta, GA 5/15
JT - 54.21/177-10 Inge Jorgensen (Virginia) - Atlanta, GA 5/15
Heptathlon - 5698 Michelle Moran (Unattached) - Columbia, MO 5/14