In the long course 100 metre breaststroke, Martinenghi won the gold medal at the
2022 World Aquatics Championships and the
2022 European Aquatics Championships, as well as the bronze medal at the
2020 Summer Olympics. In the short course version of the event, he was European champion in
2021 and won silver medals at the
2021 and
2022 World Short Course Championships. In the long course 50 metre breaststroke, he was European champion in
2022, World Aquatics Championships silver medalist in
2022, and European Aquatics Championships bronze medalist in
2021. For the short course event, he won a pair of silver medals in 2021 and 2022, one at the
2021 World Short Course Championships and one at the
2022 World Short Course Championships, and a bronze medal in 2021 at the year's European Short Course Championships.
At the 2017 Italian National Championships in April 2017, Martinenghi set a new
world junior record in the
long course 50 metre breaststroke with a time of 26.97 seconds.[3] Later in the year, in December at the
2017 European Short Course Swimming Championships, he achieved three world junior records, one in the 50 metre breaststroke in the semifinals before placing eighth in the final, one in the semifinals of the 100 metre breaststroke, and one in the final of the 100 metre breaststroke to place seventh, won a silver medal as part of the 4×50 metre medley relay for his efforts in the preliminaries, and placed fifteenth in the 200 metre breaststroke.[4] In July 2019, he competed at the
2019 World Aquatics Championships in
Gwangju,
South Korea in the
100 metre breaststroke.[5]
2021
2020 European Aquatics Championships
At the
2020 European Aquatics Championships, held in May 2021 in
Budapest,
Hungary, with swimming contested at
Danube Arena, Martinenghi placed fifth in the final of the
100 metre breaststroke with a time of 58.94 seconds, finishing 0.56 seconds ahead of fellow Italian
Alessandro Pinzuti.[6] Two days later, he won a bronze medal in the
4×100 metre mixed medley relay, contributing a split time of 58.05 seconds for the breaststroke leg of the relay to the final time of 3:42.30 and helping set a new Italian record in the event.[7] On 22 May, two days later, he won a bronze medal in the
50 metre breaststroke, finishing in a time of 26.68 seconds to round out the podium with gold medalist
Adam Peaty of
Great Britain and
Ilya Shymanovich of
Belarus.[8] In the
4×100 metre medley relay the following day, he won another bronze medal in Italian record time, helping set a new record with a final time of 3:29.93 by splitting a 57.84 for the breaststroke leg of the relay.[9]
Martinenghi achieved an Italian selection time for the
2020 Summer Olympics in the 100 metre breaststroke in December 2019 at the Winter National Championships, swimming a new
Italian record time of 58.75 seconds.[10] At the Olympic Games, held in July and August 2021 in
Tokyo,
Japan, he swam a 58.28 in the semifinals of the
100 metre breaststroke to set a new Italian record in the event and qualify for the final.[11] For the final, he won the bronze medal in a time of 58.33 seconds, finishing 0.96 seconds behind gold medalist Adam Peaty and 0.33 seconds behind silver medalist
Arno Kamminga of the
Netherlands.[12] In the final of the
4×100 metre medley relay, he split a 58.11 for the breaststroke leg of the relay to help win the bronze medal in an Italian record time of 3:29.17.[13][14] He also swam in the prelims heats of the relay where he split 57.94 for the breaststroke.[13] His medals contributed to a total medal count of 40 for Italy, which was the most the country had ever earned at a single Olympic Games across all sports.[15]
2021 European Short Course Championships
For his first final at the
2021 European Short Course Swimming Championships, held in November at the
Palace of Water Sports in
Kazan,
Russia, Martinenghi helped set a new
world record of 1:30.14 and win the gold medal in the 4×50 metre medley relay, splitting a 25.14 for his 50 metre breaststroke portion of the relay.[16] In the final of the 100 metre breaststroke the following day, he won the gold medal and became the European Short Course champion with an Italian record time of 55.63 seconds, which was 0.14 seconds faster than silver medalist Ilya Shymanovich.[17][18][19] In the semifinals of the 50 metre breaststroke two days later, he set new
Championships and Italian records with a time of 25.37 seconds to qualify for the final ranking first.[20][21] The next day, he started the finals session with a bronze medal-win in the 50 metre breaststroke with a time of 25.54 seconds, finishing 0.29 seconds behind gold medalist Ilya Shymanovich who tied the world record set by
Cameron van der Burgh in the event.[22][23] He concluded the session helping win the silver medal in the 4×50 metre mixed medley relay, splitting a 25.13 to contribute to the final time of 1:36.39, which set a new Italian record and was 0.21 seconds slower than the gold medal-winning and world record-setting relay team for the Netherlands.[24]
2021 World Short Course Championships
In December, at the
2021 World Short Course Championships in
Abu Dhabi,
United Arab Emirates, Martinenghi won the silver medal in his first event, the
100 metre breaststroke, with a time of 55.80 seconds, which was 0.10 seconds slower than the gold medalist and world record holder in the event Ilya Shymanovich.[25] Helping achieve a third-place finish with a 1:37.29 in the final of the
4×50 metre mixed medley relay for his second event, he won a bronze medal for his efforts.[26] For his third event, he split a 25.30 for the breaststroke leg of the
4×50 metre medley relay, helping win the bronze medal with a final time of 1:30.78.[27] In his fourth event, his second of two individual events, he won the silver medal in the 50 metre breaststroke with a time of 25.55 seconds.[28] Concluding competition with his fifth event, he split a 55.94 for the breaststroke leg of the
4×100 metre medley relay to help achieve a new
Championships and Italian record time of 3:19.76 with finals relay teammates
Lorenzo Mora (backstroke),
Matteo Rivolta (butterfly), and
Alessandro Miressi (freestyle) and win the gold medal.[29]
2022
At the 2022 Italian National Spring Championships in April, Martinenghi won the gold medal and national title in the 100 metre breaststroke with a
2022 World Aquatics Championships qualifying time of 58.57 seconds.[30][31][32] He also won the 50 metre breaststroke with a World Championships qualifying time, of 26.49 seconds, finishing over three-tenths of a second ahead of silver medalist in the event
Simone Cerasuolo.[33][34][35]
2022 World Aquatics Championships
In the preliminary heats of the
100 metre breaststroke at the 2022 World Aquatics Championships on 18 June, Martinenghi qualified for the semifinals ranking fourth with a time of 59.06 seconds.[36] He ranked first in the evening semifinals, swimming a 58.46 to advance to the final the following day.[37] He won the gold medal in the final the following day with an Italian record time of 58.26 seconds.[38][39][40] In the prelims of the
50 metre breaststroke the following day, he ranked first with a time of 26.68 seconds and qualified for the semifinals.[41][42] Finishing with a time of 26.56 seconds in the semifinals, he qualified for the final of the event ranking first.[43] With a time of 26.48 seconds in the final, he won the silver medal, finishing three-hundredths of a second behind gold medalist
Nic Fink of the
United States and over two-tenths of a second ahead of bronze medalist
Michael Andrew of the United States.[44][45][46] Later in the same finals session, he swam the 100 metre breaststroke portion of the
4×100 metre mixed medley relay in a time of 57.93 seconds, helping achieve a fifth-place finish in 3:41.67.[47] On the eighth and final day of competition, he split a 59.50 for the breaststroke leg of the
4×100 metre medley relay in the preliminaries, helping qualify the relay to the final ranking third.[48] In the final, he lowered his split time to a 57.47, contributing to a gold medal win in a
European record and Italian record time of 3:27.51.[49][50]
2022 European Aquatics Championships
The first day of the
2022 European Aquatics Championships, held in
Rome in August, Martinenghi ranked first in the preliminaries of the
100 metre breaststroke, qualifying for the evening semifinals with a time of 59.08 seconds.[51] Lowering his time to 58.44 seconds in the semifinals, he qualified ranking first to the final.[52][53] In the final he won the gold medal, tying his Italian record time of 58.26 seconds.[54][55][56][57] Later in the same session, he helped win a silver medal in the
4×100 metre mixed medley relay, splitting a 58.13 for the breaststroke leg in the final.[57][58] On the fifth morning, he ranked first in the preliminaries of the
50 metre breaststroke, qualifying for the semifinals with a time of 26.71 seconds.[59] In the semifinals, he won semifinal heat two with a 26.64, ranked first across both semifinals heats, and qualified for the final.[60][61][62] The following day, he won the gold medal with an Italian record time of 26.33 seconds.[63][64][65][66][67] For his final event of the Championships, he split a 57.72 for the breaststroke leg of the
4×100 metre medley relay in the final, helping set a new
Championships record of 3:28.46 and win the gold medal.[68][69][70]
2022 Swimming World Cup
On day one of the
2022 FINA Swimming World Cup in
Berlin,
Germany, Martinenghi won a bronze medal in the 100 metre breaststroke, finishing in a time of 57.14 seconds and sharing the podium with Americans Nic Fink, gold medalist, and
Reece Whitley, silver medalist.[71] Day two, he improved upon his placement, this time winning the silver medal in the 50 metre breaststroke with a time of 26.12 seconds to finish only behind Nic Fink.[72] After forgoing competition for the second stop, he returned for the third and final stop, in
Indianapolis, United States, and placed fourth in the 100 metre breaststroke on day one with a time of 57.39 seconds.[73] The following morning, he ranked third in the preliminary heats of the 50 metre breaststroke with a time of 26.54 seconds, which was 0.10 seconds slower than second-ranked
João Gomes Júnior of
Brazil and qualified him for the final.[74] For the final, he lowered his time by 0.52 seconds to a 26.02 and won the silver medal.[75] The final day of the World Cup, he placed twelfth in the 200 metre breaststroke with a time of 2:08.68.[76]
2022 World Short Course Championships
Finishing in a time of 56.60 seconds for the preliminaries of the
100 metre breaststroke on day two of the
2022 World Short Course Championships in
Melbourne,
Australia, Martinenghi advanced to the semifinals ranking first.[77] In the evening, he helped achieved a European record time of 1:36.01 in the
4×50 metre mixed medley relay final to win the silver medal, splitting a 24.83 for the breaststroke portion.[78][79][80] He followed up with a first-ranked time of 56.01 seconds in the semifinals of the 100 metre breaststroke, advancing the to final the following day.[81] Following up with a time of 56.07 seconds in the final the next day, he won the silver medal.[82][83][84][85]
On the morning of day five, Martinenghi ranked first in the preliminaries of the
50 metre breaststroke with a time of 25.71 seconds, qualifying for the semifinals three-tenths of a second ahead of second-ranked Adam Peaty.[86] In the evening, he helped set a
world record in the final of the
4×50 metre medley relay to win the gold medal, splitting a 24.95 for the breaststroke leg to contribute to the new world mark of 1:29.72 and break the former record of 1:30.41 he helped set in November 2021.[87][88][89] In his final race of the evening, the semifinals of the 50 metre breaststroke, he ranked first with a time of 25.60 seconds and qualified for the final the following day.[90] For the final of the 50 metre breaststroke on the sixth and final evening of competition, he achieved a
silver-bronze finish with fellow Italian Simone Cerasuolo, finishing 0.26 seconds ahead of Cerasuolo in a time of 25.42 seconds to help accomplish the maneuver and mark the first time it was achieved at a
World Short Course Championships by any two men from one country.[91][92][93][94] In his final event of the evening, the final of the
4×100 metre medley relay, he split a 55.52 for the breaststroke leg to help win the bronze medal in a European record time of 3:19.06, which was 0.10 seconds faster than the world record in the event pre-start of race.[92][93][95]
2023
At the 2023 Italian National Championships in April, Martinenghi achieved a
2023 World Aquatics Championships qualifying time of 59.06 in the final of the 100 metre breaststroke and won the silver medal.[96] Splitting a 58.01 for the breaststroke leg of the 4×100 metre medley relay on day three, he helped the
CC Aniene relay team place fourth in 3:37.66.[97] On the fifth and final day, he repeated as national champion in the 50 metre breaststroke with a time of 26.90 seconds.[98] For the 100 metre breaststroke at the 2023
Mare Nostrum in
Barcelona,
Spain, in May, he won in a time of 59.98 seconds.[99]
Legend: NR –
Italian record; Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; tt – time trial
Legend: NR –
Italian record; Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; tt – time trial
Legend: NR –
Italian record; Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; tt – time trial
Legend: WR –
World record;NR –
Italian record; Records not set in finals: h – heat; sf – semifinal; r – relay 1st leg; rh – relay heat 1st leg; b – B final; † – en route to final mark; tt – time trial