Day 4 of Olympic track and field action got underway at the Stade de France on Monday morning.

The second session on Day 3 ended in exciting fashion, as American Noah Lyles backed up his talk and won the gold medal in the men's 100m..

This morning, we'll see a series of qualifying events, including several Repechage Rounds, a new element in this Games giving athletes a second chance in advancing in their respective events.

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Stay tuned for live updates across the morning session. 

6:50 AM EDT: Women's 200m Repechage Round

In this Repechage Round the winner in each of the four heats and the next two fastest times advance to the Semi-Final. Jacqueline Madago of Canada, Maboundou Kone of Ivory Coast, Olivia Fotopoulou of Cyprus, Adaejah Hodge of British Virgin Islands, Polyniki Emmanouilidou of Greence, and Krystsina Tsimanouskaya of Poland made the cut and will compete in Tuesday's Final.

5:55 AM EDT: Women's 400m First Round

In this six heat event, the first three in each heat advance to the Semi-Final. All others advance to the Repechage Round.

Salwa Eid Naser of Brunei took Heat 1 in 49.91. 2024 U.S. Champion Kendall Ellis finished fifth in 51.16, well off the 49.46 PB she set at the U.S. Olympic Trials in June. She'll try again the Repechage Round.

In Heat 2, Jamaica's Nickisha Pryce (50.02) showed the ability to maintain her college form into August with a strong performance. Running for University of Arkansas, Pryce was the NCAA Champion in the 400m, running for Arkansas at the 2024 NCAA Division I Outdoor National Championships. Her time in that race (48.89) made her the NCAA record holder and Jamaican national record holder.

Pryce's collegiate teammate Amber Anning, running for Great Britain, took the top spot in Heat 3 in 49.68. Anning finished third in the event at the NCAA Championships in June. Lieke Klaver of Netherlands was second in 49.96.

In Heat 4, two-time defending Olympic champ Shaunae Miller-Uibo pulled up early and will be not have the chance to defend her title. Natalia Kaczmarek of Poland won the heat in 49.98.

World champion Marileidy Paulino of Dominican Republic dominated Heat 5 in 49.42. American Aaliyah Butler also got an auto Q in second in 50.52.

2023 NCAA Champion Rhasidat Adeleke cruised to the win Heat 6, running 50.09. American Alexis Holmes took second in 50.35.

5:35 AM EDT: Men's Discus Qualification Group B

Clemens Prufer of Germany finished first in Group B with a 66.36 mark.

Mykolas Alekna of Lithuania from Group A finished with the top overall mark (67.47). American Sam Mattis finished 14th overall and didn't advance to the Final.

5:20 AM EDT: Men's 400M Repechage Round

Four athletes scratched from Heat 1. The belief is that these athletes opted to save their legs before competing in the 4x400m relay. 

Elian Larregina from Argentina won the heat in 45.36. 

Two athletes scratched in Heat 2, which was won by Lythe Pillay of South Africa in 45.40.

Two more scratches in Heat 3. South Africa's Zakithi Nene took the heat in 44.81.

In Heat 4, 2023 World Championships finalist Sean Bailey was unable to finish the race due to an injury, ending a disappointing Olympics campaign.

4:50 AM EDT: Women's 400M Hurdles Repechage Round

The inaugural Repechage Round in the event brought some drama! In this three heat round, the top two finishers in each heat advance to the Semi-Final round.

In Heat 1, Naomi van den Broeck of Belgium and Alanah Yukich of Australia finished in a dead tie (55.107) for the second and final qualifying spot to the semifinals of the women's 400m from the first repechage heat. Both will go through as they will utilize lane one on the track to make room for both athletes. Ayomide Folorunso of Italy took first in 55.07.

Heat 2 saw another photo finish for the second spot. Jessie Knight of Great Britain beat Gianna Woodruff of Panama by three-thousands of a second to finish second and auto-qualify for the semi-finals. Jiadie Mo of China won in 54.75.

In Heat 3, Shana Grebo of France and Anna Ryzhykova of Ukraine took the top two spots to advance to Tuesday's Sem-Final. 

4:40 AM EDT: Women's Pole Vault

In the women's pole vault, athletes who clear 4.70 or at least the 12 best performers auto-qualify for the finals.

In today's event no women cleared 4.70. 11 cleared 4.55. Rather than require a jump-off for the 12th spot, meet officials advanced all 9 women who had cleared the previous height, 4.40, on their first team. Therefore, 20 women will compete in Wednesday's final, and an earlier start time will be announced.

Defending Olympic gold medalist and two-time defending World Championships gold medalist Katie Moon cleared 4.55 and advanced. 

It was a devastating day for a pair of Great Britain athletes. Tokyo 2020 bronze medalist missed all three attempts at 4.40 after clearing 4.20. 2024 World Indoor Champion and current world leader Molly Caudery missed all three attempts at her opening height of 4.55. Both athletes failed to advance.

4:10 AM EDT: Men's Discus Qualification Group A

Mykolas Alekna had the top mark in Group A at 67.47. The top American was Sam Mattis who placed seventh in 62.66.

4:05 AM EDT: Men's 400m Hurdles Round 1

The day begins with the Paris debuts of rivals Rai Benjamin of USA and Karsten Warholm of Norway. Warholm is the world record-holder and reigning gold medalist from Tokyo 2020. At the last Olympics, Warholm and Benjamin became the first two men to go under 46 seconds in the 400m hurdles. 

Warholm won gold at the World Championships in 2017, 2019, and 2023. Benjamin, the current world leader, won silver in Tokyo 2020 and at the World Championships in 2019, and 2022 and bronze in 2023.

in this five heat event, the top three from each heat and the next three fastest times will advance.

Heat 1:

Benjamin took the opening heat easily, running a relaxed 48.82.  "It felt good. It felt easy. The crowd was amazing" Benjamin told NBC after the race.

Heat 2:

Up next, Warholm won in the seventh fastest time (47.57) run in the world this year, an impressive performance for an opening round qualifier. American Trevor Bassitt, a 2022 World Championships bronze medalist, finished a disappointing sixth in 49.38. "You can't show up to the Olympics and run 49 and be ok with it" Bassit told NBC. He expressed his desire to redeem himself and continue his Olympic dream in tomorrow's Repechage Round.

Heat 3:

Rasmus Magi of Estonia came on strong at the end and took the heat in 48.62, but American CJ Allen (48.64) and Brazil's Alison Dos Santos (48.75) were right there. Dos Santos is currently second behind Benjamin on the world leaderboard this year.

"I executed how I wanted to execute and got in top 3 to move on to the next round" Allen told NBC after the race.

Heat 4:

Roshawn Clarke of Jamaica took the heat in 48.17. Nigeria's Ezekiel Nathaniel (48.38) took second, and Wilfried Happio (48.42) of France earned the third auto-qualifier spot.

Heat 5:

Jamaica's Malik James-King won the final heat of the day in 48.21. Qatar's Ismail Doudai Abakar and Taiwan's Ming-Yang Peng each DNF'd, meaning their Olympics are over, as they will not be eligible to advance to the Repechage Round.