2017 World Championships

Coleman claimed silver in the 100 meters final, with a time of 9.94 seconds, behind Justin Gatlin and ahead of Usain Bolt in his final 100 meters race.^[20] He dropped out of the 200 meter event, citing fatigue. He also ran the anchor leg for the US 4 × 100 meters relay team at the championships, finishing second with a time of 37.52 seconds,0.05 seconds behind Great Britain.^[21]

2018

Coleman began his 2018 indoor season with a world record time of 6.37 seconds in the 60 meters at the Clemson Invitational in South Carolina, breaking Maurice Greene's near 20-year-old record by two one hundredths of a second.^[22] However, his time was not submitted for ratification as a world record by USA Track & Field due to the event neither providing for electronic starting blocks, which measure reaction times in preventing false starts, nor a zero gun (AKA zero control) test, which checks that the automatic clock-timing system start and capture sequence are properly recorded.^[23] But, one month later, on February 18, 2018, at the United States Indoor Championships in Albuquerque, New Mexico, Coleman clocked a world record time of 6.34 seconds in the 60 meters final, thus breaking Maurice Greene's previously held record. ^[24]

He went on to win the 60 meters world indoor title at the IAAF World Indoor Championships in Birmingham, clocking a championship record (previously held by Maurice Greene) of 6.37 seconds. The time is also the fastest recorded indoor performance at sea level. It is his first gold medal at the major championships.^[25]

At the start of the Outdoor season, Coleman suffered several setbacks. He injured his hamstring in April while in training and lost his first two 100 meter races of the year. One at the Prefontaine Classic in a wind-aided 9.84, and the other at an IAAF Diamond League event in Rome in 10.06. Both losses were to his teammate Ronnie Baker, who finished in third behind him at the 2018 World Indoor Championships. After his loss to Baker in Rome, Coleman dropped out of additional races in order to heal from his injuries.

Coleman finally returned to the circuit in July, winning the 100m in Rabat, Morocco in 9.98s in a tight finish. In doing so, he defeated his U.S. teammates Baker, Noah Lyles, and Mike Rodgers, who had all run 9.8 in Coleman's absence. Despite this decent return to form, he suffered more hamstring trouble while preparing for the 100m at the London Müller Anniversary Games, and did not return to racing until mid-August. On 18 August, Coleman won the 100 meters in 9.94s in Birmingham, England, just beating home favorite Reece Prescod by 0.001 seconds.

At the 2018 Diamond League finals in Brussels, Belgium, Coleman clocked a blistering 9.79-second run into a −0.3 m/s wind during the men's 100 meters final, improving his personal best by three hundredths of a second. This performance marked Coleman as the joint 7th fastest performer of all time (tied with Maurice Greene) in the history of the event, as well as winning him his first Diamond League trophy. The time was the fastest run over the previous three years.^[26]

2019

Coleman skipped the 2019 indoor season in order to be fully prepared for the long outdoor season ahead.

Coleman began his 2019 season with a quick 9.86s in the 100 meters at the IAAF Diamond League event in Shanghai, China. However, he was beaten on the line by compatriot Noah Lyles, who finished in the same time. He then won the 100 meters in Oslo, Norway in a world-leading 9.85. He ran his first 200-meter race in two years at the Golden Spike meet in Ostrava, Czech Republic, finishing second to Canada's Andre de Grasse in 19.97 seconds. Next, Coleman won the 100m at the Prefontaine Classic in 9.81 seconds, lowering his world lead and beating world champion Justin Gatlin, who finished second in a seasons best of 9.87.

In August 2019, the United States Anti-Doping Agency temporarily banned Coleman under anti-doping whereabouts rules, on the basis that he had missed three drug tests in a 12-month period. This would have resulted in a two-year ban excluding him from both the 2019 World Athletics Championships and the 2020 Tokyo Olympic Games.^[27] Coleman successfully appealed the decision on the basis that under the World Anti-Doping Agency's International Standard for Testing and Investigations, a first missed test should be backdated to the first day of that testing quarter (April 1, 2018 in Coleman's case). As Coleman's third whereabouts failure came on April 26, 2019, this meant he had missed two tests within any given 12-month period.^[28] The whereabouts failures, suspension, and subsequent successful appeal could have remained private but the news was leaked to the public prior to the World Championships.^[29]

On September 28, 2019, Coleman won the final of the men's 100m at the World Championships in Doha, Qatar setting a personal best time of 9.76 seconds. That time makes Coleman the sixth fastest man in history, as well as the third fastest American in history.^[30] He subsequently withdrew from the 200m at the same event, preventing him attempting a sprint double.^[31]

2020

In February, Coleman decided to compete at the U.S. Indoor Championships in Albuquerque on the 14th and 15th with the intent of breaking his world record in the 60 m.^[32][33] On the first day, he won his heat in a world-leading time of 6.48 s while slowing down before the finish line.^[34][35] On the second day he won his semi-final in a time of 6.51 s again slowing before the finish line, and then took the U.S. title a few hours later in a world-leading 6.37 s, equal his second fastest time in world history and 0.12 s ahead of second place Marvin Bracy.^[36][37]

On June 17, it was announced that Coleman was provisionally suspended from competition due to a further missed drug test dating back to December 9, 2019.^[38] On October 27, it was announced that Coleman had been banned until May 13, 2022, missing the 2020 Summer Olympics. He later appealed the decision to the Court of Arbitration for Sports.^[39][40]

2021

On April 16, Coleman's ban was reduced to 18 months on appeal, ending on November 13, 2021, meaning he would still miss the 2020 Olympics.

2022

Coleman had come back from his ban but wasn't back in his shape from the years before. He ran season bests of 6.41 in the 60m, 9.87 in the 100m, and 19.92 in the 200m. He finished 6th in the 100m at the World Championships at Eugene and earned silver with the 4x100m relay team, which lost to Canada by just 0.07 seconds.

2023

This section about a living person needs additional citations for verification. (October 2023)

It's been 1 year since Coleman was released from suspension and he has regained more of his previous form in training. He ran a Season's best of 6.47 in the 60m edging out Noah Lyles at the Millrose games on February the 11th.

Coleman had entered into Bermuda games 100m and won with a wind aided time of 9.78 +4.4.This was his 2nd fastest 100m time he had ever run in all conditions. He ran a season best of 19.93 in the USATF trials in the 200m finishing 6th in the final.

Coleman went into the USATF champs trials in the 100m and cruised through the heats and semi in sub 10 form. When the gun went off in the final, Coleman got his characteristic start leading for almost the whole race until Cravont Charleston upset the whole field just edging him out. Christian Coleman had to settle with the silver and went with hopes to medal in Budapest.

At the start of the World Athletics Championships in Budapest, Coleman had a season's best of 9.91. It was broken after he cruised through the heats to his semi-final, where he ran a new season's best of 9.88. Coleman slipped in the final and although he had made up a slight bit of ground after slipping, Botswana's Letsile Tebogo was on his shoulder and put pressure on Coleman. He managed to earn his only medal in the 4x100m final, winning the event.

He took part in the Xiamen Diamond League, tying the world lead of 9.83 and running a recorded en-route 60 metres split of 6.30.^[41] At the 2023 Diamond League finals in the 100 m, he won a close race against Noah Lyles, running 9.83 again. This season's best was Coleman's fastest time since the 2019 World Athletics Championships.