Repeat winners and historic firsts headlined Monday’s 128th running of the Boston Marathon. You can follow along with the biggest moments from this year's marathon with our minute-by-minute updates below:12:11 p.m. Kenyan Hellen Obiri scored her second women’s division in a row, topping fellow Kenyan Sharon Lokedi, crossing the stripe with a time of 2:22:37. The women's professional runners was the closest race in the closing miles of the event's four top divisions. 12:03 p.m.In the women's fields, defending champion Hellen Obiri, took the early lead before falling back midway through the race. But by Mile 23, the Kenyan had rallied back and reassumed the lead.Emma Bates, the top American finisher in last year's Boston Marathon, and fellow American Sara Hall were strong in the middle stages of the race, but had both fallen back out of contention by the latter miles.11:46 a.m.Ethiopian racer Sisay Lemma won the Professional Men's Division of the 128th Boston Marathon with a time of 2:06:17. Mohamed Esa finished second, and Evans Chebet, who was looking to win his third in a row, finished third."I thank God that I was able to redeem myself from the failure of last year, and I won, so I am happy," said Lemma via an interpreter. "My plan was to break the course record, but its so hilly up and down and that took a lot and it made me tired a little bit."10:49 a.m.England's Eden Rainbow Cooper has become this year's Women's wheelchair division winner with a time of 1:35:11. She bested 2024 favorite Manuela Schar.Rainbow-Cooper said her victory came as a surprise. "Last year, for Boston, it was my first Boston last year and it was a really, really tough race for me. So, I just wanted to come here and finish the race and just have fun. So, first place, I can't believe it," she said.10:21 a.m.Marcel Hug has smashed the Men's wheelchair division finish with an unofficial time of 1:15:32. This is Hug's seventh Boston Marathon win. The record win comes despite Hug crashing into a barrier while negotiating a turn onto Commonwealth Avenue in the the Newton Hills, according to the B.A.A.A video shows Hug's wheelchair tipping onto its side, sending him into the barrier. He showed his bloodied knuckles and torn racing suit after he crossed the finish line.10:00 a.m.Wave 1 of the runners has taken off from the starting line in Hopkinton. Waves 2, 3 and four will follow over the next hour and 15 minutes.9:50 a.m.The Para Athletics division has taken the starting gun for this year's Boston Marathon.9:47 a.m.The professional women have also taken the starting gun for the 128th Boston Marathon in Hopkinton.Last year's women's champion Hellen Obiri is back to defend her title. She is challenged by Edna Kiplagat, a two-time Boston winner; Emma Bates, the top American finisher in last year's Boston Marathon; and Boston icon Des Linden, the 2018 champion.9:37 a.m.The professional men have taken the starting gun for the 128th Boston Marathon in Hopkinton and are now making their way across MetroWest to Boston.Evans Chebet is looking to win his third Boston Marathon in a row.9:34 a.m.Wheelchair division champion Marcel Hug, who set a course record of 1:17:06 last year, is looking to defend his title in Boston.Hug was off to an early lead at the 15K mark, followed by Daniel Romanchuk , who won Boston in 2019 and 2022, and David Weir.Saturday's 5K women's wheelchair division winner Eden Rainbow Cooper or Britain led through the 10K mark, topping 2024 favorite Manuela Schar.Unfortunately, the defending women’s wheelchair champion American Susannah Scaroni withdrew from the Professional Women’s Wheelchair Field last week because of a shoulder injury.9:03 a.m.The Men's wheelchair division has officially pushed off from the starting line in Hopkinton, marking the official start of this year's Boston Marathon. The Women's wheelchair division began moments later.8:40 a.m.Less than a half an hour to go before the official start of the 128th Boston Marathon. The Men's wheelchair division will mark the start of the competition at 9:02 a.m., followed closely by the Women's wheelchair division at 9:05 a.m.8 a.m.Before runners start down the course from Hopkinton to Copley Square on Monday, the city of Boston and the Boston Athletic Association will honor the victims and survivors of the Boston Marathon bombing, 11 years after the attack.The One Boston Day memorial ceremonies are expected to begin around 8 a.m. with visits to the memorial sites along Boylston Street for the families who lost loved ones at the 2013 Boston Marathon. The granite, bronze, glass and brick memorials were completed in 2019 and mark the two spots along Boylston Street where the bombs went off.Martin Richard, 8; Krystle Campbell, 29; and Lu Lingzi, 23, were killed in the bombings at the finish line of the Boston Marathon. More than 200 people were injured.MIT police Officer Sean Collier, 27, was killed days later during the manhunt for the bombers. Boston police Officer Dennis Simmonds died one year after responding to the shootout with the bombers.7:40 a.m.Athletes from all over the world are gathering in Hopkinton, Massachusetts today to take on the 128th Boston Marathon.The field includes several past champions and an array of upstart competitors who hope to claim the crown for themselves by being the fastest to traverse the 26.2-mile course from Hopkinton to Copley Square. Champions secure their place in this historic race, but they are also competing for a share of more than $1 million in prize money.More coverage: See our Inside the Boston Marathon section for the latest info on this year's Boston MarathonNBC5's Lauren Granada on running in last year's Boston MarathonVT woman with terminal brain cancer to run in this year's Boston MarathonFive runners from Lake Placid to represent North Country in Boston MarathonUVM med student returns to nonbinary division to defend their crownDownload the free WPTZ app to get updates on the go: Apple App Store|Google Play StoreSister Station WCVB contributed to this report.