Baylor

Career
Singles Record: 103-42
Doubles Record: 97-49
    Highest Singles Ranking: 29th (2020)
    Highest Doubles Ranking: 3rd (2023)

Awards/Honors
• 2023 ITA Scholar Athlete
• 2022 Big 12 Individual Season Champion - No. 6 Singles
• 2022 Big 12 Individual Season Champion - No. 2 Doubles
• 2022 All-Big 12 Second Team (Doubles)
• 2022 ITA Scholar Athlete
• 2022 Big 12 Commissioner's Honor Roll selection (spring)
• 2021 Big 12 Commissioner's Honor Roll selection (fall)
• 2021 AAC Singles All-Conference Team
• 2021 AAC Doubles All-Conference Team
• 2021 AAC Championship Most Outstanding Player

2022-23 (Fifth-Year Senior):
Singles Record: 23-11 // 16-9 Dual
Doubles Record: 21-19 // 10-14 Dual
Team captain ... Recorded his 100th-career singles win against Reed Collier en route to a 5-2 conference win over the 31st-ranked Texas Tech Red Raiders ... Notched ranked wins in singles against #89 Jan Galka in the fall and against #85 Nick Lagaev in the spring … Reached the main consolation doubles draw finals and was a singles quarterfinalist in the 2022 ITA Texas Regional Championship in doubles … 2023 ITA Division I Men’s Scholar Athlete … Was 11-5 in doubles tournament play. Ranked as high as 108 in singles and No. 3 in doubles during the season ... Assisted the Bears to reaching the team's 25th-consecutive NCAA tournament and 12th ITA Team Championship tournament. 

2021-22 (Fourth-Year Junior):
Singles Record: 15-2 // 15-2 Dual
Doubles Record: 14-4 // 14-4 Dual
Member of the Big 12 Tournament Champion squad ... Won individual honors at both No. 6 singles and No. 2 doubles positions in the conference ... 2022 All-Big 12 Second Team member in doubles ... Played a 27-3 record in spring dual matchplay ... Played to a 19-2 record on court six, 4-1 at court five, 3-0 at court four and 1-0 at court two ... Opened the season with an 11-game winning streak in singles, a career high ... Playing court two doubles exclusively with Matias Soto, the duo bested third-ranked Sander Jong and Lui Maxted twice in just 10 days, 6-1 and 6-4 ... Climbed to a season-high ITA ranking of 9 in doubles for the postseason ... Over the season, Soto and Juampi recorded a 23-6 record just at court No. 2 ... 6-4 record against nationally ranked opponents featured wins against No. 28 Rodesch/Woodall, No. 22 Lapadat/Mercer, No. 17 Spizzirri/Woldeab and the TCU duo of Jong/Maxted ranked at ninth. Did not compete in Fall ITA tournament play.

2020-21 (Third-Year Sophomore - UCF):
Singles Record: 15-6 // 15-6 Dual
Doubles Record: 17-5 // 17-5 Dual
Compiled a mark of 15-6 in singles and 17-5 in doubles over the course of the 2020-21 season, all during dual match play ... Primarily played No. 3 singles, posting a 10-5 record there ... Went 3-1 at No. 2 singles and 2-0 at No. 4 ... Played exclusively at the No. 2 spot in doubles ... He began the season paired with Bogdan Pavel, going 8-3 together, before reuniting with Gabriel Decamps and going 9-2 ... Began season ranked No. 52 in the Oracle/ITA singles rankings, finishing at No. 102 ... No. 52 was the highest ranking of the season for Grassi Mazzuchi ... Began season ranked No. 12 in the Oracle/ITA doubles rankings paired with Decamps, finishing the season ranked No. 89 with Pavel ... Went 2-0 in singles in the AAC tournament, picking up a pair of straight set victories at the No. 3 spot in the lineup ... Went 1-1 in doubles in the AAC tournament, beating Wichita State's second pair ... Went 0-1 in singles in the NCAA tournament ... Went 1-0 in doubles in the NCAA tournament, beating No. 16 Mississippi State's No. 2 pair 7-6 (7-2).

2019-20 (Sophomore - UCF): 
Singles Record: 18-9 // 9-5 Dual
Doubles Record: 17-8 // 10-2 Dual
    Highest Singles Ranking: 29th
    Highest Doubles Ranking: 6th
Compiled a mark of 18-9 in singles and 17-8 in doubles over the course of the 2019-20 season ... Posted a record of 9-4 in singles dual match play, all at the No. 2 singles spot ... Went 10-2 in doubles during the spring, starting the season by going 5-1 at the No. 2 spot with partner Gabriel Decamps. The tandem moved up to the No. 1 spot midway through the season, earning a 5-1 mark at the top position ... Earned a mark of 4-1 against ranked singles opponents in the spring ... Won seven consecutive singles matches at one point during the season ... Won seven matches in a row in doubles during the dual match season with Decamps ... Their two wins from the beginning of this season paired with their final six from the end of the 2019 dual match season gives them a career best eight match winning streak together ... Went 9-5 in singles and 7-6 in doubles during the tournament season ... Earned runner up at ITA Southeast Regionals in singles ... Grassi Mazzuchi and Decamps finished as runners-up at the ITA All-Americans during the fall to earn themselves bids to Nationals ... Climbed as high as No. 29 in the Oracle/ITA singles rankings after a tremendous showing in the fall in singles ... Finished the spring at No. 76 after starting the fall at No. 82 ... Climbed as high as No. 6 in the Oracle/ITA doubles rankings with partner Decamps, making them the second-highest ranked doubles tandem in program history ... Finished the spring at No. 7 after starting the fall unranked.

2018-19 (Freshman - UCF):
Singles Record: 20-13 // 11-7 Dual
Doubles Record: 19-9 // 13-6 Dual
    Highest Singles Record: 57th
Won his last six singles matches and final eight doubles matches in the spring. Was paired with Gabriel Decamps in doubles ... Grassi Mazzuchi spent most of his time at the No. 5 singles positions, but played at spots 1-5 at some point during the season ... He recorded a 6-1 record at the No. 5 spot ... Tied for the team lead in match clinchers with four ... His most notable one came on College MatchDay against the Miami Hurricanes ... Went 3-0 in singles in the AAC tournament, picking up straight set wins against the No. 5 players for SMU, Wichita State and USF ... Went 3-0 in doubles in the AAC tournament, picking up wins against the No. 2 doubles pairs for SMU, Wichita State and USF with partner Gabriel Decamps ... Went 1-0 in singles in the NCAA tournament, defeating No. 28 FSU's Enzo Le Seguillon in straight sets 7-6 (7-1), 6-1 ... Went 1-0 in doubles in the NCAA tournament, pairing with Decamps to defeat No. 28 FSU's No. 2 pair of Juan Martin Jalif and Lucas Poullain by a score of 6-4 ... Was ranked at No. 57 in the nation in singles coming into the spring season.

Prep/Juniors:
Had been ranked in the top-15 in the ITF world junior rankings ... Had a career high combined ranking of 13, as of May 15, 2017 ... Reached the singles semi-finals, and the doubles quarter-finals in the 2018 Tunisia F25 Futures ... Reached the singles and doubles quarter-finals of the 2018 Tunisia F24 Futures ... Reached the doubles semi-finals, and competed in the singles of the 2018 Tunisia F23 Futures ... Reached the doubles quarter-finals, and competed in the singles of the 2018 Argentina F2 Futures ... Competed in the 2017 Roland Garros Junior French Championships, The Junior Championships at Wimbledon, and the US Open Junior Tennis Championships ... Competed in the singles and doubles of the 2018 Argentia F3 Futures.