He then competed in the 58th Trofeo Bonfiglio junior event, losing in the first round of both singles and doubles.
In June, he competed further in both Juniors and Futures events.
He competed in both the boys' singles and doubles at the French Open.
In singles, he lost in the first round, again losing to Moutet.
Along with partner Rudolf Molleker of Germany, Ruusuvuori was seeded fifth in doubles.
Together they reached the quarterfinals, losing to eventual finalists Vasil Kirkov and Danny Thomas of the United States.
He then competed in the Portugal F9 Futures, winning three rounds in singles qualifying before reaching the quarterfinals.
In July, Ruusuvuori competed in two events on the junior tour.
Competing at the Nike Junior International in Roehampton, he reached the semifinals in singles and first round in doubles, again partnering Molleker.
At Wimbledon, he faced Molleker in the first round of singles, retiring in the second set.
He returned to competition in August at Les Internationaux de Tennis Junior Banque Nationale du Canada, losing to Brian Shi of the United States in the second round.
1999
Emil Ruusuvuori (born 2 April 1999) is a Finnish professional tennis player.
He reached a career high ATP singles ranking of World No. 37 on 3 April 2023.
He is currently the No. 1 Finnish singles tennis player.
He has a career-high doubles ranking of World No. 179 achieved on 2 May 2022.
As a junior, Ruusuvuori was ranked as high as World No. 4 in the ITF combined junior rankings.
2013
At the age of 14, nine years after he first began playing tennis, Ruusuvuori entered his first ITF Juniors tournament, the Nokia Junior Cup, in 2013.
En route, he defeated two seeded players: 13th seed Sebastian Korda of the United States in the second round and 10th seed Sebastián Báez of Argentina in the quarterfinals.
In the semifinals, Ruusuvuori lost to eventual champion Wu Yibing of China in three sets, 6–4, 3–6, 6–7(4), after having two match points.
With Simon Carr of Ireland, he reached the second round in doubles.
October saw further Futures competition as well as the final junior competition of the year for Ruusuvuori.
At the Sweden F4 Futures, he again reached the singles quarterfinals after passing through qualifying, losing to eventual champion Tallon Griekspoor of the Netherlands.
At the ITF Junior Masters, he finished with a 2–1 record in round robin competition, winning matches against Jurij Rodionov of Austria and Marko Miladinović of Serbia while losing to Wu for the second time that year.
2014
2014 offered his first success, reaching two singles finals, two doubles finals, and winning two doubles titles.
2015
He saw additional success in 2015, including one final in both singles and doubles as well as another doubles title.
2016
Ruusuvuori made his singles breakthrough in 2016, winning four events in total.
He continued his doubles success as well, winning three events and reaching the finals of two more.
Ruusuvuori started his year in January at the AGL Loy Yang Traralgon Junior International, reaching the semifinals in both the doubles, with partner Michael Vrbenský of the Czech Republic, and singles.
He then entered the Australian Open, his debut grand slam event, participating in both the boys' singles and doubles.
In singles, he won his first three matches in straight sets before losing to Corentin Moutet in the quarterfinals.
Partnering again with Vrbensky, he lost in the first round of the doubles.
February saw Ruusuvuori compete in his first Davis Cup match, losing to Nikoloz Basilashvili of Georgia in straight sets.
In March, he competed in the Croatia F3 Futures event in Umag, losing in the first round of singles qualifying.
Ruusuvuori then returned to the junior tour, competing in the 33.
Perin Memorial, where he reached the finals in singles, losing to Alen Avidzba of Russia in two sets.
2017
In 2017, he reached the singles quarterfinals of the Australian Open boys' singles, the singles semifinals of the US Open boys' singles, and won the ITF Junior Masters.
Ruusuvuori has also represented Finland in the Davis Cup, where he has a win–loss record of 5–5.
After not seeing competition in April 2017, Ruusuvuori returned in May, participating in the Italy F13 Futures event, where he lost in the third round of singles qualifying.
Competing as an unseeded player at the 2017 US Open in September, Ruusuvuori saw his best singles Grand Slam result of the year, reaching the semifinals.
2019
In September 2019, he defeated reigning world number 5 and 2-time Roland Garros finalist Dominic Thiem in straight sets in a Davis Cup singles rubber.
