SENIOR VETERAN SINGLES (70+) Men (9:30 a.m.): Richard Kendall, unbeaten in this class, goes for six straight at 75. Christopher Collins, last year's runner-up, will be on his tail.
Women (9:38): Three-time champ Eve Green is the one to beat. Laurette Rindlaub, last year's runner-up, and 78-year-old two-time winner Mary Elizabeth Stone will give chase.
VETERAN SINGLES (60+) Men (9:53): With last year's top five all returning, including former champ Carlo Zezza, defender Duncan Howat has little margin for error.
Women (10:08): The top five return here, too, with Harriet Cuyler and two-time victor Barbara Green challenging Brooke Stevens, who's bidding for a record fourth straight crown.
SENIOR MASTER EIGHTS (50+) Men (10:32): Canada's Leander BC and Grosse Ile RC of Michigan, the last two champions, go head-to-head again.
Women (10:43): Lake Union goes for its third straight crown. Martha's Moms and Los Gatos RC will be pushing. SENIOR MASTER FOURS (50+) Men (10:58): Kent Mitchell RC and Toronto Sculling Club, the last two winners, will be nudged by Marin RA, last year's runner-up.
Women (11:06): Conibear RC, which dethroned Community Rowing last year, is back, along with fellow medalists Portland BC and Seattle Yacht Club Rowing Foundation.
SENIOR MASTER DOUBLES (50+) Men (11:23): Take your pick between defending champs Bob Eldridge and Tom Dryer and former Harvard teammates Gregg Stone and Tiff Wood. Jack Frackelton and Ted Van Dusen will also challenge.
Women (11:32): Joan Linse and Susan Kinne go for three in a row. Radcliffe coach Liz O'Leary and Lisa Stone are in the way.
CLUB FOURS Men (11:53): Union BC, the boss of the Basin, goes for its third title in five years. Portland BC, the US Merchant Marine Academy, and Dutch entry ASR Nereus are the top rivals.
Women (12:06 p.m.): The last four champions -- defender University of Tulsa, Ottawa RC, Capital RC, and Saugatuck RA -- make this a rough field.
CLUB EIGHTS Men (12:33): With Molesey BC not defending, it's a battle among ASR Nereus, Cornell alums BMA Boat Club, and Princeton grads Fat Cat RC plus Potomac BC.
Women (12:50): With the last two winners absent, two-time former champ Tennessee gets the nod, but don't rule out Lake Union, Cascade Rowing, and Community Rowing's rising youth program.
Men (1:16): Wide open, with Riverside's Trevor de Koekkoek, last year's seventh-place finisher, the top seed. Cormac Keogh, Alex Binkley, and Demetrio Gagnon, all top 10 last time, will contend.
Women (1:29): Same situation here. Catherine Kemp, seventh in 2004, is a slender favorite ahead of returnees Darlene Daigle and Susie Lueck.
COLLEGIATE FOURS Men (1:54): Connecticut will be first off the line in this new event, but it's anybody's race. Raleigh RC, Colgate, William & Mary, Bowdoin -- pick 'em.
Women (2:02): Assumption gets the No. 1 bow marker. Alphabetical order has its advantages.
MASTER EIGHTS (40+) Men (2:26): Pocock RC goes for an unprecedented third straight, but Penn AC and former champ Palm Beach RC will be in the vicinity.
Women (2:38): Long Beach bids for three straight, challenged by a couple of Olympic alumni boats with past titles -- Etats-Unis RC and 1980 RC.
CHAMPIONSHIP DOUBLES Men (2:57): Last year's top two finishers each have new partners -- Nathan Swick is with Aaron Kroeker, Erik Breiland with former champ Billy Martin-Doyle. That leaves Luis Teixeira and Edgar Nanne as top cats. Don't overlook Olympians Brett Wilkinson and Kent Smack.
Women (3:08): This could be the best duel in years. Just nine seconds separated victors Mary Layne Salter and Marika Page from last year's sixth-place finishers. World lightweight medalists Julia Nichols and Renee Hykel will challenge. For a dark horse, look to Olympic medalist Caryn Davies and Anne Browning.
CHAMPIONSHIP SINGLES Men (3:28): Even without defending champ Juri Jaanson, the field is stacked -- world champ Mahe Drysdale, Olympic gold medalists Wyatt Allen (in the eight) and Itzok Cop (2000 double), plus 2004 runner-up Michael Perry, lightweight Olympian Steve Tucker, former US champ Jonathan Burns, and Olympian Sloan DuRoss.
Women (3:40): With defender Cindy Bishop out, it's up for grabs. Best bet is Michelle Guerette, the world bronze medalist who tuned up with a 5-miler in Switzerland last weekend. Fellow US teammate Megan Cooke is in the mix, as is returning runner-up Jana Heere.