There is something exciting about a young athlete who steps up and becomes the best in the business in the sport of wrestling. This transformation seems to be happening for Harry Lester of the Gator WC, who climbed from a No. 4 seed to win the gold medal at the U.S. Nationals at  66 kg/145.5 lbs. in Greco-Roman wrestling.    Lester became the first athlete from the U.S. Olympic Education Center program at Northern Michigan Univ. to claim a Senior national title.  He has been having a strong season, winning the gold medal a t the Dave Schultz Memorial International. However, Lester stepped it up bigtime in Las Vegas, beating Olympian Oscar Wood of the U.S. Army in the semifinals in a true slugfest, then stopping past World Team member Marcel Cooper of the U.S. Army in the championship finals. Lester chose to concentrate on Greco-Roman rather than folkstyle in college, and his choice paid off with a Greco-Roman national title at a young age.    With Lester on the top of the ladder, the rest of the field will have to battle in the Challenge Tournament at the World Team Trials for the right to compete against him. Cooper's performance in Las Vegas is encouraging. He competed many years for the U.S. Marines, before joining the Army World Class Athlete Program this year. Cooper make the 2001 World Team, but has not been No. 1 since the weight classes have been reduced to seven. He has experience and confidence, something he will need in this weight class with  so much depth.    Placing third in the U.S. Nationals was Glenn Garrison of the U.S. Army, another experienced athlete who has yet to make it to the No. 1 position in this division after being close a number of times. Garrison lost in Las Vegas in the quarterfinals to Mark Rial of the Gator WC, then beat Rial later in the day in the bronze medal match. Both of these athletes have a legitimate chance to win the Challenge Tournament in Ames. It was Rial's best performance on the national level, and shows his progress in recent seasons.    Wood, the big surprise of the 2004 season, placed fifth, losing a three-period match to Garrison in the wrestle-backs after the upset loss to Lester. Wood was impressive last season, beating veteran star Kevin Bracken in the Olympic Trials finals. His Olympic experience was disappointing, as he wrestled hard but lost three times. Wood knows what it will take to get back on top, and should be in top form when the World Team Trials comes along.    Placing sixth at the U.S. Nationals was Mike Ellsworth of the Michigan WC, another veteran wrestler who has a history of success but still seeks his first World Team berth. Ellsworth won a silver medal at the Dave Schultz International this year, and has proven to be competitive with everybody in the weight division.  The final qualifier for the World Team Trials from the U.S. Nationals is Jacob Curby of the Gator WC, who is an emerging young talent from the USOEC program at Northern Michigan.     Athletes who qualified for the field by winning Regional titles were Cam Jones of Utah Valley, the Rocky Mountain champion, and James Johnson of the U.S. Army, the Northern Plains champion. Jones placed as high as third in the U.S. Nationals when he was a Utah high school star, then took a Mormon mission and was away from the sport for a few seasons.      This weight class is expected to have some volatility in the Challenge Tournament. There are a number of athletes capable of winning this one-day event, including Cooper, Garrison, Rial, Wood and Ellsworth. Whoever emerges will have a difficult task facing Lester, who will be rested and ready to defend his turf. Of the Greco-Roman divisions at the World Team Trials this year, expect 66 kg to be one of the most hotly contested.    2005 U.S. NATIONALS RESULTS AT 66 KG/145.5 LBS.  1st - Harry Lester, Akron, Ohio (USOEC/Gator WC) dec. Marcel Cooper, Colorado Springs, Colo. (U.S. Army), 3-0, 1-0  3rd - Glenn Garrison, Colorado Springs, Colo. (U.S. Army) dec. Mark Rial, Colorado Springs, Colo. (Gator WC), 1-0, 1-0  5th - Oscar Wood, Fountain, Colo. (U.S. Army) pin Mike Ellsworth, Colorado Springs, Colo. (Michigan WC), 3:45  7th - Jacob Curby, LaGrange, Ill. (Gator WC) dec. Mervin Ford, Miami Beach, Fla. (Gator WC), 6-3, 1-0    QUALIFIERS FOR 2005 WORLD TEAM TRIALS AT 66 KG/145.5 LBS.  U.S. Nationals Champion - Harry Lester, Akron, Ohio (USOEC/Gator WC)  U.S. Nationals, second place - Marcel Cooper, Colorado Springs, Colo. (U.S. Army)  U.S. Nationals, third place - Glenn Garrison, Colorado Springs, Colo. (U.S. Army)  U.S. Nationals, fourth place - Mark Rial, Colorado Springs, Colo. (Gator WC)  U.S. Nationals, fifth place - Oscar Wood, Fountain, Colo. (U.S. Army)  U.S. Nationals, sixth place - Mike Ellsworth, Colorado Springs, Colo. (New York AC)  U.S. Nationals, seventh place - Jacob Curby, LaGrange, Ill.(Gator WC)  Rocky Mountain Regional Champion - Cam Jones, Salt Lake City, Utah  (Utah Valley)   Northern Plains Regional Champion - James Johnson, Colorado Springs, Colo. (U.S. Army)  Olympic Team member - Oscar Wood, Fountain, Colo. (U.S. Army)  Past World Team member - Marcel Cooper, Colorado Springs, Colo. (U.S. Army)  '04 Sunkist Kids International champion - Harry Lester, Akron, Ohio (USOEC/Gator WC)  '04 NYAC Christmas Open champion - Glenn Garrison, Colorado Springs, Colo. (U.S. Army)  '05 Dave Schultz Memorial champion - Harry Lester, Akron, Ohio (USOEC/Gator WC)  International Tour medalist (within 2 yrs) -   *'03 Henri Deglane Challenge bronze medalist - Heath Sims, La Hoya, Calif. (Dave Schultz WC