| Doubles | |
|---|---|
| 2018 Tallahassee Tennis Challenger | |
| Champions |  Robert Galloway Denis Kudla |
| Runners-up |  Enrique López Pérez  Jeevan Nedunchezhiyan |
| Final score | 6–3, 6–1 |
Scott Lipsky and Leander Paes were the defending champions but chose not to defend their title.
Robert Galloway and Denis Kudla won the title after defeating Enrique López Pérez and Jeevan Nedunchezhiyan 6–3, 6–1 in the final.
Luke Bambridge / Jonny O'Mara (semifinals)
Marc Polmans / Max Purcell (first round) Evan King / Nathan Pasha (quarterfinals) Enrique López Pérez / Jeevan Nedunchezhiyan (final)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | L Bambridge J O'Mara | 6 | 77 | ||||||||||||||||||||||||
 A Arnaboldi  A Siljeström | 3 | 64 | 1 | L Bambridge J O'Mara | 7 | 6 | |||||||||||||||||||||
C Harrison  P Polansky | 5 | 6 | [10] | C Harrison P Polansky | 5 | 4 | |||||||||||||||||||||
 G Clezar JP Sorgi | 7 | 3 | [6] | 1 | L Bambridge J O'Mara | 4 | 4 | ||||||||||||||||||||
| 4 | E López Pérez J Nedunchezhiyan | 6 | 77 | 4 | E López Pérez J Nedunchezhiyan | 6 | 6 | ||||||||||||||||||||
| Q | Erik Crepaldi  P Torebko | 4 | 64 | 4 | E López Pérez J Nedunchezhiyan | 6 | 4 | [10] | |||||||||||||||||||
 M Cuevas  H Dellien | 6 | 6 | M Cuevas H Dellien | 3 | 6 | [7] | |||||||||||||||||||||
| WC | JC Aragone P Riba | 4 | 2 | 4 | E López Pérez J Nedunchezhiyan | 3 | 1 | ||||||||||||||||||||
| N Lammons A Lawson | 6 | 2 | [8] | R Galloway D Kudla | 6 | 6 | |||||||||||||||||||||
| M Krueger H Reese | 4 | 6 | [10] | M Krueger H Reese | 62 | 6 | [10] | ||||||||||||||||||||
| WC | A Reed  B Rola | 1 | 1 | 3 | E King N Pasha | 77 | 3 | [8] | |||||||||||||||||||
| 3 | E King N Pasha | 6 | 6 | M Krueger H Reese | 6 | 1 | [4] | ||||||||||||||||||||
 C Garín A Santillan | 6 | 7 | R Galloway D Kudla | 4 | 6 | [10] | |||||||||||||||||||||
| WC |  Guy Orly Iradukunda Lucas Poullain | 3 | 5 | C Garín A Santillan | |||||||||||||||||||||||
| R Galloway D Kudla | 6 | 6 | R Galloway D Kudla | w/o | |||||||||||||||||||||||
| 2 | M Polmans M Purcell | 1 | 3 | ||||||||||||||||||||||||
Saketh Myneni and Sanam Singh were the defending champions, but lost in the first round.
Robin Haase and Mate Pavić won the tournament, defeating French couple Jonathan Eysseric and Fabrice Martin in the final. Robin Haase won the singles competition, too.
Yuki Bhambri and Adrián Menéndez-Maceiras were the defending champions but chose not to participate.
This was the first edition of the tournament.
Brydan Klein and Matt Reid were the defending champions but only Reid defended his title, partnering John-Patrick Smith.
Enrique López-Pérez and Jeevan Nedunchezhiyan were the defending champions but chose not to defend their title.
Daniel Masur and Ante Pavić were the defending champions but chose not to defend their title.
Rohan Bopanna and Jeevan Nedunchezhiyan were the defending champions, but lost in the quarterfinals to Pierre-Hugues Herbert and Gilles Simon.
Sanchai and Sonchat Ratiwatana were the defending champions but lost in the quarterfinals to Hsieh Cheng-peng and Yang Tsung-hua.
David O'Hare and Joe Salisbury were the defending champions but only Salisbury chose to defend his title, partnering Leander Paes. Salisbury lost in the final to Jeevan Nedunchezhiyan and Christopher Rungkat.
Peter Polansky and Neal Skupski were the defending champions but chose not to defend their title.
Ken and Neal Skupski were the defending champions but lost in the semifinals to Frederik Nielsen and Joe Salisbury.
Sanchai Ratiwatana and Christopher Rungkat were the defending champions but only Rungkat chose to defend his title, partnering Roberto Maytín. Rungkat lost in the final to Austin Krajicek and Jeevan Nedunchezhiyan.
Sriram Balaji and Vishnu Vardhan were the defending champions but only Balaji chose to defend his title, partnering Jeevan Nedunchezhiyan. Balaji lost in the final to Hsieh Cheng-peng and Christopher Rungkat.
Gerard and Marcel Granollers were the defending champions but chose not to defend their title.
Jean-Julien Rojer and Horia Tecău were the defending champions, but lost in the semifinals to Rajeev Ram and Joe Salisbury.
Guido Andreozzi and Ariel Behar were the defending champions but only Behar chose to defend his title, partnering Thiago Monteiro. Behar lost in the first round to David Pérez Sanz and Oriol Roca Batalla.
Austin Krajicek and Jeevan Nedunchezhiyan were the defending champions but only Nedunchezhiyan chose to defend his title, partnering Purav Raja. Nedunchezhiyan lost in the semifinals to Marcus Daniell and Leander Paes.
Austin Krajicek and Jeevan Nedunchezhiyan were the defending champions but only Nedunchezhiyan chose to defend his title, partnering Purav Raja. Nedunchezhiyan lost in the first round to Jason Jung and Evan King.
Gong Maoxin and Zhang Ze were the defending champions but chose not to defend their title.