The favorite in the women's race was
Brigid Kosgei
who had run a personal best of 2:18:20 at the
2019 London Marathon
in April. Kosgei won the
previous year
and had finished either first or second in nine out of ten of the marathons in her career.
[6]
In the initial field, only three other women had run sub-2:25 before; 2018
Paris Marathon
winner
Betsy Saina
,
Madai Perez
who had run 2:22:59 in
2006
, and
Jordan Hasay
, who ran 2:20:57 in
2017
.
[7]
Hasay had finished third in the 2017 edition and third at the
2017 Boston Marathon
, but had not competed at the
2018 Chicago Marathon
or
2018 Boston Marathon
due to two
stress fractures
in her foot.
[8]
Saina ran a time of 2:22:56 to win in Paris, but had failed to finish the
2017 Tokyo Marathon
or
2017 New York City Marathon
.
[9]
Perez had finished fourth in 2:24:44 at the 2017 Chicago Marathon, but did not finish the 2018 Boston Marathon.
[10]
Other competitors in the field included three-time
Olympian
Fionnuala McCormack
and
Amy Cragg
, however, she later pulled out of the race in August due to a
hamstring
injury.
[7]
Not long before the day of the race,
Gelete Burka
, who had won the 2019 Paris Marathon and had run a personal best of 2:20:45, joined the field.
[11]
In the men's race, defending champion
Mo Farah
returned, having run 2:05:11 in 2018 and 2:05:29 at the
2019 London Marathon
in April.
Galen Rupp
had finished in fifth place the previous year in a time of 2:06:21 and said he "could not be more excited" to be running.
[12]
Rupp had been recovering from a surgery on his left foot to treat
Haglund's deformity
, a
congenital
bump on the heel which causes problems for the
Achilles tendon
.
[13]
The field initially featured sub-2:04 runners
Getaneh Molla
(who had won the 2019
Dubai Marathon
in 2:03:34)
[14]
and
Herpasa Negasa
(who finished in second place at the 2019 Dubai Marathon in 2:03:40), but they withdrew before the race.
[15]
This left
Lawrence Cherono
as the fastest in the field, having run 2:04:06 in 2018 as well as winning four of the last five marathons he ran, including the
2019 Boston Marathon
in 2:07:57.
[15]
Others in the field included
Asefa Mengstu
, who had a personal best of 2:04:06 but had only competed in one World Marathon Major, where he finished seventh,
Dickson Chumba
, with a personal best of 2:04:32 and first place finishes at the
2015 Chicago Marathon
and
2018 Tokyo Marathon
,
Seifu Tura
(2:04:44 personal best),
Bedan Karoki
(58:42 personal best in the half-marathon),
Bashir Abdi
, and
Dejene Debela
.
[15]
In the men's wheelchair race,
Daniel Romanchuk
returned to defend his title, having won the
2018 New York City Marathon
, and the Boston and London Marathons in 2019.
[16]
Also racing were ten-time Boston winner
Ernst van Dyk
, who had finished fifth in Tokyo and Boston, and sixth in London in 2019,
[17]
eight time London winner
David Weir
, and four-time Chicago winner
Josh George
.
[18]
In the women's wheelchair race,
Manuela Schar
returned to defend her title, having won the last seven
World Marathon Majors
, most recently the
2019 Berlin Marathon
in September.
[18]
She faced competition from three-time Chicago winner
Amanda McGrory
, eight-time Chicago winner
Tatyana McFadden
, and 2018 London winner
Madison de Rozario
.
[18]
The men's wheelchair race started at 7:20
a.m.
CT
(
UTC?5
), the women's wheelchair race started one minute later, and the three waves of runners at 7:30, 8:00, and 8:35.
[19]
[20]
The winners of the men and women's elite races received $100,000 each with an additional $75,000 available for a course record, and the wheelchair winners received $20,000 each with $5,000 available for a course record.
[21]
The temperature at the start was around 40?°F (4?°C).
[22]
The weather forecast for the race was expected to be 46?°F (8?°C), with no chance of rain and 15?25-mile-per-hour (24?40?km/h) winds, described as "near ideal conditions" by the medical director.
[23]
The race was held a day after
Eliud Kipchoge
ran the first sub-2 hour marathon during the
Ineos 1:59 Challenge
in
Vienna
, Austria.
[24]
In the men's wheelchair race, a large pack formed, which was together through the first half of the race. Soon after this, Romanchuk made a move and was able to break away from the pack, winning in a time of 1:30:26. The pack approached the finish three minutes later and, following a sprint finish, Weir finished second in 1:33:31, and van Dyk finished a second later in third. The women's wheelchair race was between McGrory, McFadden, Schar, and
Susannah Scaroni
. Schar opened up a slight gap on the rest just after the halfway mark and managed to hold her lead to win in 1:41:08. At the 40-kilometre (25?mi) mark, the other three competitors were neck-and-neck, before McGrory and McFadden left Scaroni, then McFadden left McGrory to take second place in 1:45:22. Meanwhile, Scaroni had managed to catch back up to McGrory and they both crossed the finish line in 1:45:29. A
photo finish
concluded that McGrory had taken third place.
[25]
[26]
In the elite women's race, Kosgei set out very fast, passing 2 miles (3.2?km) in 9:54 and 5 kilometres (3.1?mi) in 15:28 with
Ababel Yeshaneh
and Burka 8 and 35 seconds behind, respectively.
[27]
[28]
Hasay recorded a 5-kilometre split time of 22:20, equating to a 3:08 marathon, and she pulled out before the 10-kilometre mark citing a
hamstring
injury.
[29]
Kosgei went through 10 kilometres (6.2?mi) in 31:28 and halfway in 1:06:59, which was over a minute faster than
Paula Radcliffe
's halfway split during her world record run at the
2003 London Marathon
.
[27]
Saina, who had been running in fourth place, dropped out halfway through the race, having struggled with
food poisoning
on the journey to the United States from Kenya.
[30]
Running behind two male
pacemakers
, Kosgei passed 25 kilometres (16?mi) in 1:19:33, 30 kilometres (19?mi) in 1:35:18, 35 kilometres (22?mi) in 1:51:14, 40 kilometres (25?mi) in 2:07:11 and finished in a time of 2:14:04.
[27]
[28]
Kosgei beat Radcliffe's world record by 81 seconds and the course record, also set by Radcliffe in
2002
, by 3:14.
[31]
[32]
When she crossed the line, she was congratulated by
Mayor of Chicago
Lori Lightfoot
[32]
and Radcliffe, who posed for a photo with her.
[33]
Nearly seven minutes later, Yeshaneh and Burka finished in second and third in 2:20:51 and 2:20:55, respectively.
[27]
In the men's category, Cherono made an early breakaway, running the first mile in 4:42 with two pacemakers before he was caught by the pack.
[34]
Six men, Debela, Cherono, Karoki, Mengstu, Chumba, and Tura, led for most of the race with a chasing pack close behind, however after 5 miles (8.0?km), the leading group had grown to nine runners with the addition of Abdi, Farah, and Rupp.
[35]
[34]
Rupp and Farah dropped out of the lead group after 7 miles (11?km) and 15 kilometres (9.3?mi), respectively.
[35]
[22]
By 20 kilometres (12?mi), the lead group was back down to the original six leaders and the pace was described by Cherono as "very competitive from the beginning" with the group going through half-way in 1:02:14 and Farah in 1:02:54 with Rupp three seconds behind
[34]
before the pacemakers dropped out about 30 kilometres (19?mi) into the race.
[22]
[36]
Not long after the halfway point, Rupp began to lose contact with Abdi and Farah, who were working together, but Rupp regained contact 18 miles (29?km) into the race, whilst Karoki increased the pace in the lead group. At just after 30 kilometres, Chumba dropped from the lead group and 5 kilometres later, was 34 seconds behind, with Abdi, Farah, and Rupp a further 48, 116, and 138 seconds behind, respectively.
[34]
Just before 23 miles (37?km), Rupp, who was nearly 3 minutes behind the leaders and 22 seconds behind Farah,
[35]
abandoned the race citing a
calf
strain which had been causing pain since mile 6.
[37]
At 38 kilometres (24?mi), Cherono made an attempt to break from the lead group, but was caught by Debela, Mengstu, and Karoki.
[34]
The other three runners left Karoki behind before the final turn of the race
[22]
before Cherono made a surge with 400 metres (1,300?ft) to go to and, following a
sprint finish
, won in a time of 2:05:45.
[34]
Debela and Mengstu finished second and third, one and three seconds behind, respectively. Karoki was fourth in 2:05:53 and Abdi ran a Belgian record by finishing fifth in 2:06:14.
[22]
Farah ran his slowest marathon ever, finishing eighth in 2:09:58.
[38]
Nicholas Thompson
, the editor in chief of
WIRED
, wrote about the race in an article titled "To Run My Best Marathon at Age 44, I Had to Outrun My Past."
[39]
He finished in 2:29 as one of the top Masters men.