Nathaniel Lammons (born August 12, 1993) is an American professional tennis player who specializes in doubles. He has a career-high ATP ranking of world No. 17 in doubles, achieved on 27 January 2025. He has won 10 ATP doubles titles.

A former player at Southern Methodist University, Lammons turned professional in 2016. Lammons sealed his top 100 doubles debut in July 2019, a year in which he won four doubles titles from seven doubles finals reached as he broke through on the ATP Challenger Tour. In 2022, he won his first two career ATP Tour doubles titles in San Diego and Seoul, earning him his top 50 debut. Together with partner Jackson Withrow in 2023, Lammons reached his first ATP 500 final in Acapulco and his first ATP Masters 1000 semifinal in Miami. In 2024, he made his first Grand Slam semifinal at the 2024 US Open with Withrow and reached the top 20.

Professional career

2021–22: New partnership with Withrow, win over World No. 1 team, Two titles, top 50

At the 2021 US Open partnering Jackson Withrow they defeated top pair Nikola Mektić and Mate Pavić in the first round in 75 minutes.

He reached his maiden final at the 2022 Chile Open with André Göransson.

At the 2022 San Diego Open he won his first ATP title with Withrow defeating Jason Kubler and Luke Saville. The pair moved up 25 places to 35th in the doubles race. He made his top 60 debut in the rankings at world No. 55 on 26 September 2022. At the Korea Open he partnered Raven Klaasen to win his second title in two weeks defeating Nicolás Barrientos and Miguel Ángel Reyes-Varela in straight sets. He moved another 7 positions up to reach the top 50 in the doubles rankings at world No. 48 on 3 October 2022.

The pair Lammons/Withrow ended the season at No. 32 in the ATP doubles rankings.

2023–24: Eight titles, Major & Masters semifinals, top 20

In the beginning of 2023 with Withrow, Lammons reached three finals in Auckland, in Dallas and at the ATP 500 Mexican Open in Acapulco. The pair won the Challenger title at the 2023 Arizona Tennis Classic. At the 2023 Miami Open they reached the semifinals of a Masters for the first time but lost to eventual champions Santiago González and Édouard Roger-Vasselin. He made his debut in the top 30 on 8 May 2023.

During the American summer swing, in the span of two months Lammons and Withrow won three titles at the 2023 Atlanta Open, the 2023 Hall of Fame Open and the 2023 Winston-Salem Open.

The pair reached their eight final of the season and second at the ATP 500 level at the 2023 Erste Bank Open in Vienna. At the last Masters of the season in Paris the pair reached the quarterfinals defeating sixth seeds Máximo González and Andrés Molteni.

Lammons at the 2024 Libéma Open

Lammons and Withrow won their sixth title as a pair at the 2024 Libéma Open defeating top seeds Wesley Koolhof and Nikola Mektić.

They successfully defended their Atlanta Open title in its last edition making them the last champions at the tournament. The pair captured their first ATP 500 title at the 2024 Mubadala Citi DC Open in Washington D.C. They also successfully defended their Winston-Salem Open title, making it the fourth team title for the season.

At the 2024 US Open, Lammons reached the semifinals of a Grand Slam for the first time in his career, partnering Withrow, with wins over three-time defending champions Joe Salisbury and Rajeev Ram and 13th seeds Wesley Koolhof and Nikola Mektić. They lost to eventual champions Max Purcell and Jordan Thompson in straight sets. As a result he reached the top 20 on 9 September 2024. At the 2024 Shanghai Masters, they reached the quarterfinals but lost to Wesley Koolhof and Nikola Mektić which halted their attempt to move one position up above their opponents in the ATP doubles race from their current place of No. 9.

ATP Tour finals

Doubles: 17 (10 titles, 7 runner-ups)

Legend
Legend Grand Slam tournaments (0–0) ATP Tour Finals (0–0) ATP Tour Masters 1000 (0–0) ATP Tour 500 Series (1–2) ATP Tour 250 Series (9–5)Finals by surface Hard (8–6) Clay (0–1) Grass (2–0)Finals by setting Outdoors (9–4) Indoors (1–3)
Grand Slam tournaments (0–0)
ATP Tour Finals (0–0)
ATP Tour Masters 1000 (0–0)
ATP Tour 500 Series (1–2)
ATP Tour 250 Series (9–5)
Finals by surface
Hard (8–6)
Clay (0–1)
Grass (2–0)
Finals by setting
Outdoors (9–4)
Indoors (1–3)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScore
Loss0–1Feb 2022Chile Open, Chile250 SeriesClaySweden André GöranssonBrazil Felipe Meligeni Alves Brazil Rafael Matos6–7(8–10), 6–7(3–7)
Win1–1Sep 2022San Diego Open, United States250 SeriesHardUnited States Jackson WithrowAustralia Jason Kubler Australia Luke Saville7–6(7–5), 6–2
Win2–1Oct 2022Korea Open, South Korea250 SeriesHardSouth Africa Raven KlaasenColombia Nicolás Barrientos Mexico Miguel Ángel Reyes-Varela6–1, 7–5
Loss2–2Oct 2022Gijón Open, Spain250 SeriesHard (i)United States Jackson WithrowArgentina Máximo González Argentina Andrés Molteni7–6(8–6), 6–7(4–7), [5–10]
Loss2–3Jan 2023Auckland Open, New Zealand250 SeriesHardUnited States Jackson WithrowCroatia Nikola Mektić Croatia Mate Pavić4–6, 7–6(7–5), [6–10]
Loss2–4Feb 2023Dallas Open, United States250 SeriesHard (i)United States Jackson WithrowUnited Kingdom Jamie Murray New Zealand Michael Venus6–1, 6–7(4–7), [7–10]
Loss2–5Mar 2023Mexican Open, Mexico500 SeriesHardUnited States Jackson WithrowAustria Alexander Erler Austria Lucas Miedler6–7(9–11), 6–7(3–7)
Win3–5Jul 2023Hall of Fame Open, United States250 SeriesGrassUnited States Jackson WithrowUnited States William Blumberg Australia Max Purcell6–3, 5–7, [10–5]
Win4–5Jul 2023Atlanta Open, United States250 SeriesHardUnited States Jackson WithrowAustralia Max Purcell Australia Jordan Thompson7–6(7–3), 7–6(7–4)
Win5–5Aug 2023Winston-Salem Open, United States250 SeriesHardUnited States Jackson WithrowUnited Kingdom Lloyd Glasspool United Kingdom Neal Skupski6–3, 6–4
Loss5–6Sep 2023Zhuhai Championships, China250 SeriesHardUnited States Jackson WithrowUnited Kingdom Jamie Murray New Zealand Michael Venus4–6, 4–6
Win6–6Sep 2023Astana Open, Kazakhstan250 SeriesHard (i)United States Jackson WithrowCroatia Mate Pavić Australia John Peers7–6(7–4), 7–6(9–7)
Loss6–7Oct 2023Vienna Open, Austria500 SeriesHard (i)United States Jackson WithrowUnited States Rajeev Ram United Kingdom Joe Salisbury4–6, 7–5, [10–12]
Win7–7Jun 2024Rosmalen Grass Court Championships, Netherlands250 SeriesGrassUnited States Jackson WithrowNetherlands Wesley Koolhof Croatia Nikola Mektić7–6(7–5), 7–6(7–3)
Win8–7Jul 2024Atlanta Open, United States (2)250 SeriesHardUnited States Jackson WithrowSweden André Göransson Netherlands Sem Verbeek4–6, 6–4, [12–10]
Win9–7Aug 2024Washington Open, United States500 SeriesHardUnited States Jackson WithrowBrazil Rafael Matos Brazil Marcelo Melo7–5, 6–3
Win10–7Aug 2024Winston-Salem Open, United States (2)250 SeriesHardUnited States Jackson WithrowUnited Kingdom Julian Cash United States Robert Galloway6–4, 6–3

Performance Timeline

Doubles

Tournament20182019202020212022202320242025SRW–LWin %
Grand Slam tournaments
Australian OpenAAAA2R1R3R2R0 / 43–443%
French OpenAAAA1R1R1R1R0 / 40–40%
WimbledonAANH1R1RQF3R1R0 / 55–550%
US Open2R1R1R2R2RQFSF1R0 / 810–859%
Win–loss1–10–10–11–22–46–48–41–40 / 2118–2146%
ATP Tour Masters 1000
Indian Wells OpenAANHAA1RQFA0 / 22–250%
Miami OpenAANHAASF2RA0 / 24–267%
Monte-Carlo MastersAANHAAA2RA0 / 11–150%
Madrid OpenAANHAA2RQF1R0 / 33–350%
Italian OpenAAAAA1R1R1R0 / 30–30%
Canadian OpenAANHAA2R1R1R0 / 31–325%
Cincinnati OpenAAAAA1R1R1R0 / 30–30%
Shanghai MastersAANH1RQFA0 / 22–250%
Paris MastersAAAAAQF1RA0 / 22–250%
Win–loss0–00–00–00–00–07–89–90–40 / 2115–2142%

ATP Challenger and ITF Tour finals

Doubles: 49 (28–21)

Legend
Legend ATP Challenger Tour (19–11) ITF Futures Tour (9–10)Finals by surface Hard (21–15) Clay (7–6) Grass (0–0) Carpet (0–0)
ATP Challenger Tour (19–11)
ITF Futures Tour (9–10)
Finals by surface
Hard (21–15)
Clay (7–6)
Grass (0–0)
Carpet (0–0)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScore
Win1–0Jun 2016USA F21, TulsaFuturesHardUnited States Dane WebbSouth Africa Rikus de Villiers United States Clay Thompson7–5, 4–6, [12–10]
Loss1–1Sep 2016Israel F11, HerzliyaFuturesHardUnited States Dane WebbUnited States Connor Smith United States Danny Thomas3–6, 4–6
Loss1–2Sep 2016Israel F12, AshkelonFuturesHardUnited States Dane WebbUnited States Connor Smith United States Danny Thomas0–6, 6–7(3–7)
Loss1–3Sep 2016Israel F13, Kiryat GatFuturesHardUnited States Dane WebbIsrael Dekel Bar United Kingdom Scott Clayton4–6, 7–5, [5–10]
Win2–3Dec 2016USA F40, TallahasseeFuturesHard (i)United States Robert GallowayTunisia Aziz Dougaz Burundi Guy Orly Iradukunda6–4, 5–7, [10–8]
Loss2–4May 2017Mexico F2, VillahermosaFuturesHard (i)United Kingdom Farris Fathi GoseaUnited States Kevin King South Africa Nicolaas Scholtz6–7(4–7), 6–7(4–7)
Win3–4May 2017Mexico F3, CórdobaFuturesHardUnited Kingdom Farris Fathi GoseaUnited States Hunter Callahan Portugal Bernardo Saraiva6–4, 6–7(5–7), [10–8]
Win4–4Jun 2017Zimbabwe F1, HarareFuturesHardZimbabwe Benjamin LockZimbabwe Mark Fynn South Africa Nicolaas Scholtz6–2, 6–3
Loss4–5Jun 2017Zimbabwe F2, HarareFuturesHardZimbabwe Benjamin LockZimbabwe Mark Fynn South Africa Nicolaas Scholtz6–3, 1–6, [7–10]
Win5–5Jul 2017Zimbabwe F3, HarareFuturesHardZimbabwe Benjamin LockFrance Baptiste Crepatte France Thomas Setodji7–6(7–4), 6–2
Loss5–6Jul 2017Egypt F19, Sharm El SheikhFuturesHardZimbabwe Benjamin LockUkraine Marat Deviatiarov Czech Republic Tomáš Papik4–6, 6–1, [5–10]
Loss5–7Jul 2017Egypt F20, Sharm El SheikhFuturesHardPortugal Bernardo SaraivaItaly Julian Ocleppo Italy Andrea Vavassori6–2, 3–6, [8–10]
Win6–7Aug 2017USA F26, DecaturFuturesHardMoldova Alexandru GozunAustralia Edward Bourchier Australia Harry Bourchier6–2, 7–6(7–2)
Win7–7Sep 2017France F20, PlaisirFuturesHard (i)United States Alex LawsonFrance Antoine Hoang France Grégoire Jacq4–6, 7–6(9–7), [10–4]
Loss7–8Oct 2017France F22, NeversFuturesHard (i)United States Alex LawsonFrance Benjamin Bonzi France Antoine Hoang6–7(5–7), 4–6
Loss7–9Oct 2017France F23, Saint-DizierFuturesHard (i)United States Alex LawsonFrance Jonathan Kanar France Mick Lescure6–0, 4–6, [9–11]
Win8–9Oct 2017France F24, RodezFuturesHard (i)United States Alex LawsonFrance Antoine Hoang France Ugo Humbert7–6(7–4), 4–6, [10–7]
Loss8–10Dec 2017USA F39, WacoFuturesHard (i)United States Alex LawsonGermany Julian Lenz Venezuela Roberto Maytín6–7(5–7), 6–1, [12–14]
Win9–10Dec 2017USA F40, TallahasseeFuturesHard (i)United States Alex LawsonUnited States Jose E Gracia France Lucas Poullain6–3, 6–0
Win10–10Jul 2018Scheveningen, NetherlandsChallengerClayPhilippines Ruben GonzalesVenezuela Luis David Martínez Portugal Gonçalo Oliveira6–3, 6–7(8–10), [10–5]
Loss10–11Aug 2018Sopot, PolandChallengerClayPhilippines Ruben GonzalesPoland Mateusz Kowalczyk Poland Szymon Walków6–7(6–8), 3–6
Loss10–12Jan 2019Columbus, USAChallengerHard (i)United States Robert GallowayUnited States Maxime Cressy Portugal Bernardo Saraiva5–7, 6–7(3–7)
Win11–12Jan 2019Newport Beach, USAChallengerHardUnited States Robert GallowayMonaco Romain Arneodo Belarus Andrei Vasilevski7–5, 7–6(7–1)
Loss11–13Feb 2019Cleveland, USAChallengerHardUnited States Robert GallowayMonaco Romain Arneodo Belarus Andrei Vasilevski4–6, 6–7(4–7)
Win12–13Feb 2019Cherbourg, FranceChallengerHard (i)United States Robert GallowayItaly Raúl Brancaccio Spain Javier Barranco Cosano4–6, 7–6(7–4), [10–8]
Win13–13Jul 2019Ludwigshafen, GermanyChallengerClayBrazil Fernando RomboliPortugal Pedro Sousa Portugal João Domingues7–6(7–4), 6–1
Loss13–14Jul 2019Braunschweig, GermanyChallengerClayCroatia Antonio ŠančićArgentina Guillermo Durán Italy Simone Bolelli3–6, 2–6
Win14–14Sep 2019New Haven, USAChallengerHardUnited States Robert GallowayBelgium Sander Gillé Belgium Joran Vliegen7–5, 6–4
Win15–14Feb 2020Cleveland, USAChallengerHardPhilippines Treat HueyAustralia Luke Saville Australia John-Patrick Smith7–5, 6–2
Win16–14Mar 2020Columbus, USAChallengerHardPhilippines Treat HueyUnited Kingdom Lloyd Glasspool United States Alex Lawson7–6(7–3), 7–6(7–4)
Loss16–15Sep 2020Iași, RomaniaChallengerClayPhilippines Treat HueyBrazil Rafael Matos Brazil João Menezes2–6, 2–6
Win17-15Oct 2020Split, CroatiaChallengerClayPhilippines Treat HueySweden André Göransson United States Hunter Reese6–4, 7–6(7–3)
Loss17-16Oct 2020Istanbul, TurkeyChallengerHardUnited States Robert GallowayUruguay Ariel Behar Ecuador Gonzalo Escobar6–4, 3–6, [7–10]
Loss17-17Nov 2020Cary, United StatesChallengerHardUnited Kingdom Luke BambridgeRussia Teymuraz Gabashvili United States Dennis Novikov5–7, 6–4, [8–10]
Win18-17Mar 2021Nur-Sultan, KazakhstanChallengerHard (i)United States Jackson WithrowUnited States Nathan Pasha United States Max Schnur6-4, 6-2
Win19-17May 2021Biella, ItalyChallengerClaySweden André GöranssonBrazil Rafael Matos Brazil Felipe Meligeni Alves7–6(7–3), 6–3
Win20–17May 2021Heilbronn, GermanyChallengerClayUnited States Jackson WithrowSweden André Göransson Netherlands Sem Verbeek6–7(4–7), 6–4, [10–8]
Loss20-18Sep 2021Szczecin, PolandChallengerClaySweden André GöranssonMexico Santiago González Argentina Andrés Molteni6–2, 2–6, [13–15]
Win21–18Nov 2021Champaign, USAChallengerHard (i)United States Jackson WithrowPhilippines Treat Huey United States Max Schnur6–4, 3–6, [10–6]
Loss21-19Apr 2022Sarasota, USAChallengerClaySweden André GöranssonUnited States Robert Galloway United States Jackson Withrow3–6, 6–7(3–7)
Win22–19Apr 2022Split, CroatiaChallengerClayFrance Albano OlivettiFrance Sadio Doumbia France Fabien Reboul4–6, 7–6(8–6), [10–7]
Win23–19Jul 2022Salzburg, AustriaChallengerClayUnited States Jackson WithrowAustria Alexander Erler Austria Lucas Miedler7–5, 5–7, [11–9]
Win24–19Sep 2022Cary, USAChallengerHardUnited States Jackson WithrowPhilippines Treat Huey Australia John-Patrick Smith7–5, 2–6, [10–5]
Win25–19Mar 2023Phoenix, USAChallengerHardUnited States Jackson WithrowMonaco Hugo Nys Poland Jan Zieliński6–7(1–7), 6–4, [10–8]
Loss25-20May 2023Turin, ItalyChallengerClayAustralia John PeersKazakhstan Andrey Golubev Ukraine Denys Molchanov6–7(4–7), 7–6(8–6), [5–10]
Win26–20Oct 2025Shenzhen, ChinaChallengerHardNetherlands Jean-Julien RojerAustralia Finn Reynolds Australia James Watt6–7(5–7), 7–5, [10–4]
Win27–20Oct 2025Seoul, South KoreaChallengerHardNetherlands Jean-Julien RojerUnited States George Goldhoff United States Theodore Winegar6–3, 6–4
Win28–20Nov 2025Taipei, TaiwanChallengerHardNetherlands Jean-Julien RojerJapan Kaito Uesugi Japan Seita Watanabe7–6(7–4), 7–6(8–6)
Loss28–21Mar 2026Morelia, MexicoChallengerHardUnited States Jackson WithrowEcuador Diego Hidalgo United States Patrik Trhac6–7(5–7), 6–7(4–7)

Notes

External links