| Team Ranking | AVG | R | HR | ERA |
| Marlins | .240 | 450 | 96 | 4.85 |
| NL East Division | 3rd | 5th | 5th | 5th |
| National League | 11th | 15th | 15th | 15th |
| Roster | |||||||
| No | STARTERS | AGE | B | T | HT | WT | DOB |
| 54 | Chen, Wei-Yin | 33 | R | L | 6-0 | 193 | 7/21/1985 |
| 49 | Lopez, Pablo | 22 | R | R | 6-3 | 200 | 3/7/1996 |
| 63 | Richards, Trevor | 25 | R | R | 6-2 | 190 | 5/15/1993 |
| 31 | Smith, Caleb (DL) | 27 | R | L | 6-2 | 205 | 7/28/1991 |
| 58 | Straily, Dan | 29 | R | R | 6-1 | 220 | 12/1/1988 |
| 62 | Urena, Jose | 26 | R | R | 6-3 | 206 | 9/12/1991 |
| No | BULLPEN | AGE | B | T | HT | WT | DOB |
| 46 | Barraclough, Kyle (DL) | 28 | R | R | 6-2 | 224 | 5/23/1990 |
| 61 | Conley, Adam | 28 | L | L | 6-3 | 201 | 5/24/1990 |
| 66 | Garcia, Jarlin | 25 | L | L | 6-3 | 217 | 1/18/1993 |
| 53 | Graves, Brett | 25 | R | R | 6-1 | 195 | 1/30/1993 |
| 40 | Guerra, Javy | 32 | R | R | 6-2 | 226 | 10/31/1985 |
| 56 | Guerrero, Tayron | 27 | R | R | 6-7 | 214 | 1/9/1991 |
| 57 | Hernandez, Elieser | 23 | R | R | 6-1 | 214 | 5/3/1995 |
| 50 | O'Grady, Chris (DL) | 28 | R | L | 6-4 | 225 | 4/17/1990 |
| 55 | Rucinski, Drew | 29 | R | R | 6-2 | 190 | 12/30/1988 |
| 71 | Steckenrider, Drew | 27 | R | R | 6-4 | 238 | 1/10/1991 |
| No | CATCHERS | AGE | B | T | HT | WT | DOB |
| 28 | Holaday, Bryan | 30 | R | R | 6-0 | 205 | 11/19/1987 |
| 11 | Realmuto, J.T. | 27 | R | R | 6-1 | 213 | 3/18/1991 |
| No | INFIELDERS | AGE | B | T | HT | WT | DOB |
| 13 | Castro, Starlin | 28 | R | R | 6-2 | 230 | 3/24/1990 |
| 14 | Prado, Martin (DL) | 34 | R | R | 6-0 | 215 | 10/27/1983 |
| 10 | Riddle, JT | 26 | L | R | 6-1 | 188 | 10/12/1991 |
| 2 | Rivera, Yadiel | 26 | R | R | 6-3 | 185 | 5/2/1992 |
| 19 | Rojas, Miguel | 29 | R | R | 5-11 | 188 | 2/24/1989 |
| No | OUTFIELDERS | AGE | B | T | HT | WT | DOB |
| 15 | Anderson, Brian | 25 | R | R | 6-2 | 198 | 5/19/1993 |
| 48 | Bostick, Christopher | 25 | R | R | 5-10 | 200 | 3/24/1993 |
| 9 | Brinson, Lewis (DL) | 24 | R | R | 6-5 | 206 | 5/8/1994 |
| 30 | Cooper, Garrett (DL) | 27 | R | R | 6-6 | 230 | 12/25/1990 |
| 32 | Dietrich, Derek | 29 | L | R | 6-0 | 212 | 7/18/1989 |
| 79 | Galloway, Isaac | 28 | R | R | 6-1 | 202 | 10/10/1989 |
| 52 | Ortega, Rafael | 27 | L | R | 5-11 | 160 | 5/15/1991 |
| 34 | Sierra, Magneuris | 22 | L | L | 5-11 | 160 | 4/7/1996 |
| No | DESIGNATED HITTERS | AGE | B | T | HT | WT | DOB |
| 2018 Team Leaders | |||
| AVG | J.T. Realmuto , C | .296 | |
| HR | J.T. Realmuto , C | 15 | |
| RBI | J.T. Realmuto , C | 58 | |
| OBP | Brian Anderson , RF | .357 | |
| SLG | J.T. Realmuto , C | .511 | |
| R | Starlin Castro , 2B | 65 | |
| SB | Miguel Rojas , SS | 6 | |
| W | Caleb Smith , SP | 5 | |
| ERA | Jose Urena , SP | 4.74 | |
| WHIP | Jose Urena , SP | 1.28 | |
| K | Jose Urena , SP | 104 | |
| SV | Kyle Barraclough , RP | 10 | |
| Full Team Statistics | |||
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