Diriba faces two-time world silver medalist Senbere Teferi while the men's race also has Boilermaker winner Gabriel Geay.

Sisson ran 30:39 to Diriba's 31:12, but the course was about 300m short of 10k. Meanwhile in the Netherlands, Davis Kiplagat (27:24) and Eva Cherono (31:17) ran PBs to win the Singelloop 10k. *MB: Did Emily Sisson just run an AR for the ROAD 10k?

Also racing are Sally Kipyego, Betsy Saina, Buze Diriba and Mamitu Daska. On the men's side, Meb Keflezighi is racing as last year's winner Daniel Chebii leads the field with Stephen Sambu, Abdi Abdirahman, Chris Derrick and more.

Ben True and Tommy Curtin tried to take advantage of a missed turn by Gebhriwet let but were unable to pull off the victory. Plus  Aidan Puffer of Manchester, Connecticut set a new age-13 world record of 15:47. *MB: Americans go home devastated: Hagos G (13:42) and Buze Diriba (15:22) win 2018 BAA 5k. MB: Aidan Puffer of Manchester, Connecticut just set a new age-13 world record of 15:47, smashing his own record of 16:11.4.

Lagat joins a very good field which includes Paul Chelimo, Donn Cabral and GB Olympian Chris Thompson. Molly Huddle leads the women's race against Desiree Linden, Molly Seidel and Ethiopia's Buze Diriba.

It was a third consecutive win for Diriba who beat out fellow Ethiopian Gotytom Gebrselase by 4-seconds.

The men's field is lead by World steeple 5th placer Stanley Kebenei and Boilermaker 15K champ Silas Kipruto while Diriba will face World Half bronze medalist Mary Wacera in the women's race.

The men's field is lead by World steeple 5th placer Stanley Kebenei and Boilermaker champ Silas Kipruto while Diriba will face World Half bronze medalist Mary Wacera in the women's race.

Korir won in a close race over Kenya's Kimatui Cheruiyot while Diriba's run was the second fastest women's 10-mile ever on US soil. Emily Sisson was 2nd in 52:03.

The fields are strong once again for Sunday's late-night meet. Maggie Vessey (800), Cory McGee (1,500), Shelby Houlihan (1,500), Evan Jager (1,500) Henrik Ingebrigtsen (1,500), Sally Kipyego (5k), Nicole Tully (5k), Garrett Heath (5k), Chris Derrick (5k), Buze Diriba (10k), Molly Seidel (10k) and Sam Chelanga (10k) are among the entrants with the 10k track debut of Bernard Lagat.

True will face Olympic silver medalist Dejen Gebremeskel, Stephen Sambu and Diego Estrada while Huddle is up against Kim Smith and Buze Diriba (14:50 PB). Also Saturday, Chris O'Hare, Trevor Dunbar, Dawit Seyaum (2nd at World Indoors) and Heather Kampf lead the way in the BAA Mile.

Former World Champs 5000 5th placer Buze Diriba, former All-American Aliphine Tuliamuk-Bolton and former US marathon champ Esther Atkins (Erb) lead women's field.

Nice wins by Ajee Wilson and Jordan Hasay at the pro season got underway in full swing.

Jonathan Grey was the first American in 5th.
*Results
*OTB: Ryan Hall 50:25 in Pittsburgh??

Hall faces 1:01 half marathoner Leonard Korir and Fernando Cabada. Women's field has 2012 World Junior 5,000 champ Buze Diriba and Sara Hall.