After 23 years, Khalid Khannouchi's 2:05:38 American record is no more. Mantz continued an epic 2025 season by breaking the marathon AR to go with his half marathon AR from January.

We reveal the secrets from many of leading North American contenders in Chicago including Dakotah Popehn, who ran 5:20 in the mile in college, but revealed she wants to run sub-5:20 pace for 26.2 on Sunday. Plus can Rory Linkletter get the North American record while sporting a mullet?

Only three non-African-born men have ever broken 2:05 and two of them have been accused of PEDs. Mantz, who has already set an American record in the half (59:17) and run 2:05:08 on Boston's non-record-eligible course in 2025, is looking to join the club on Sunday. *MB: How fast will Conner Mantz run in Chicago? The AR is 2:05:38. Might he DESTROY that & run in the 2:03s? 

Khalid Khannouchi's 2:05:38 has stood since 2002. We break down why the time is right for Mantz to attack the AR and why he chose Chicago over Valencia.

• MB Conner Mantz announces he will try to break 2:05:38 American record at 2025 Chicago Marathon
• MB Can Conner Mantz run a Marathon in Valencia to finally break Khannouchi AR ?

Mantz took almost three minutes off his pb and just missed the podium, finishing four seconds back of second place. Among Americans, only Ryan Hall (2:04:58) has run a faster marathon than Mantz did in Boston on Monday.

Mantz said his first Boston appearance in 2023 dented his confidence and affected his racing in 2024, but he is ready to put that behind him on Monday. Plus two-time champ Evans Chebet is feeling healthy and ready to reclaim his title.

Mantz is in the shape of his life after setting a half marathon AR in Houston and running even faster in NYC. Is 2025 the year he cracks the podium in a major? And does he have any chance to win on Monday?

Sharon Lokedi (1:07:04) and Abel Kipchumba (59:09) were the winners as Americans Fiona O'Keefe (1:07:46) and Conner Mantz (59:15) were second.

Mantz took down Hall’s AR on the same Houston course where he set it in 2007 as Weini Kelati (66:09) broke the women’s AR for the second year in a row. A record seven Americans ran sub-61:00.

Conner Mantz and Clayton Young remain inseperable, Hellen Obiri chases a three-peat, and Eliud Kipchoge's quest to win every major appears to be dead. *MB: 2025 Boston Marathon field is out - Hellen Obiri & Sisay Lemma lead along with Americans Mantz, Young & Popehn. No Kipchoge.

Conner Mantz (6th, 2:09:00) set an American course record in New York while CJ Albertson (10th) ran 2:10:57 just 21 days after running 2:08:17 in Chicago.

• Official 2024 New York City Marathon Discussion Thread
• Conner Mantz delivers once again
• Who saw this coming? Sara Vaughn first American in New York!
• I expected more from Tola and Obiri
• Anyone else Sickened Seeing Rupp & Rowbury Now Commentators?

Tola, Olympic silver medalist Bashir Abdi, 2022 NYC champ Evans Chebet, plus Americans Conner Mantz, Clayton Young, and CJ Albertson should make for a great race on Sunday.

Tola, who was only named to the team less than two weeks ago, was sensational as he went 64:51/61:35 to get the win.

Oh baby, we can't wait for this one. Kipchoge vs Bekele on an epic course as he seeks a historic 3-peat. Plus how will the field handle one of the toughest courses in professional marathoning history and could the runners be running sub-4 pace after mile 19 as it's so downhill?

Kenyans Abel Kipchumba (58:06) and Gladys Chepkurui (65:46) are the fastest entrants in the field for the March 17 race.

Oh what a year 2024 is going to be. Josh Kerr vs Yared Nuguse is on! Noah Lyles looks like he's ready to make a statement but so does Letsile Tebogo. And how about those Australian teenagers and BYU alums.

Mantz and Young almost crossed the line together, with Mantz pulling ahead in the final meters. Korir overcame an 18-second deficit at 25 miles to take 3rd.

We've whittled the 214 men's entrants down to eight serious contenders to make the team. Will the favorites deliver or could an outsider sneak onto the team?

Conner Mantz reveals he has stress reaction in his femur but he is ready to go for the Olympic Marathon Trials where he is the #1 seed.