Since 2018, the Tampa Bay Rays had the best record by a team as underdogs, with a record of 136-133.

which team has the best record as underdogs in the last 5 seasons
RaysBrewersCardinalsDodgersBravesMarinersYankeesAthleticsGiantsPhilliesTwinsBlue JaysRed SoxDiamondbacksGuardiansRockiesRedsPadresRangersCubsAstrosWhite Sox136-133120-128152-16316-18116-134211-24855-65159-204175-227132-173134-178146-200111-156191-272100-143201-291176-260137-206216-327127-19737-58146-230
TEAMGRECW%WLABRH2B3BHRRBISHSFSBCSBBIBBHBPSOGIDPPATBXBHAVGOBPSLGOPS
Tampa Bay RaysTampa Bay Rays269136-133.5061361339,1151,1282,133460472821,064255016763816231392,59715010,1453,533789.234.305.388.693
Milwaukee BrewersMilwaukee Brewers248120-128.4841201288,3461,0121,94636825312973305616236800461082,3981909,3403,300705.233.307.395.702
St. Louis CardinalsSt. Louis Cardinals315152-163.48315216310,5071,3482,515468313701,282547816446930391562,79319711,7254,155869.239.309.395.704
Los Angeles DodgersLos Angeles Dodgers3416-18.47116181,17414526262851138891331241124355201,339493121.223.308.420.728
Atlanta BravesAtlanta Braves250116-134.4641161348,5051,0662,053444333061,02233531344673940802,3601399,4103,481783.241.306.409.716
Seattle MarinersSeattle Mariners459211-248.46021124815,3131,9033,534678555611,82541952441071,459291914,28328417,0996,0051,294.231.304.392.696
New York YankeesNew York Yankees12055-65.45855654,028509916178111624811126571440913481,217854,5221,602351.227.304.398.702
Oakland AthleticsOakland Athletics363159-204.43815920412,1641,4832,769593344311,4103269153441,075261473,26626313,4874,7231,058.228.297.388.685
San Francisco GiantsSan Francisco Giants402175-227.43517522713,6311,5953,162630514381,5315777152681,166681463,76227915,0775,2081,119.232.298.382.680
Philadelphia PhilliesPhiladelphia Phillies305132-173.43313217310,2071,1992,347458433451,151586517636966531012,90018711,3973,926846.230.301.385.686
Minnesota TwinsMinnesota Twins312134-178.42913417810,7081,3392,572503393921,27627707741953351212,83421911,8794,329934.240.308.404.712
Toronto Blue JaysToronto Blue Jays346146-200.42214620011,7321,4952,793609294841,4332071147461,047291033,20622812,9734,9121,122.238.304.419.723
Boston Red SoxBoston Red Sox267111-156.4161111569,1611,2102,306504253201,16016661273878741732,49317810,1033,820849.252.314.417.731
Arizona DiamondbacksArizona Diamondbacks463191-272.41319127215,6811,9743,639792885111,88386112188541,469731724,15629517,5206,1401,391.232.303.392.694
Cleveland GuardiansCleveland Guardians243100-143.4121001438,1829701,9213733425792539601623866526962,1091359,0423,133664.235.298.383.681
Colorado RockiesColorado Rockies492201-291.40920129116,7762,0604,104795955161,971100110233641,404661534,46234718,5436,6371,406.245.307.396.703
Cincinnati RedsCincinnati Reds436176-260.40417626014,6191,7923,481653604571,7178095171901,352562383,88733316,3845,6251,170.238.311.385.696
San Diego PadresSan Diego Padres343137-206.39913720611,6261,2992,673510523471,23173751857597963903,28523812,8434,328909.230.293.372.665
Texas RangersTexas Rangers543216-327.39821632718,2342,2864,239805716342,157571183761191,624392055,10333020,2387,0881,510.232.301.389.689
Chicago CubsChicago Cubs324127-197.39212719710,8621,3512,528451533881,280536417571993461623,19724212,1344,249892.233.305.391.696
Houston AstrosHouston Astros9537-58.38937583,210395731167711937782341142921636831703,5691,269293.228.297.395.693
Chicago White SoxChicago White Sox376146-230.38814623012,8461,5263,170596613891,464616717652922271543,64826914,0505,0551,046.247.304.394.697
Washington NationalsWashington Nationals400153-247.38315324713,4291,7283,397634574251,6427796201661,259741683,22433315,0295,4201,116.253.323.404.726
Pittsburgh PiratesPittsburgh Pirates569216-353.38021635319,1032,2514,5928701135362,1311051252301091,622891774,74639621,1327,2961,519.240.304.382.686
New York MetsNew York Mets282107-175.3791071759,6381,1902,357449493281,13748549654867391412,54421210,7483,888826.245.314.403.718
Detroit TigersDetroit Tigers617234-383.37923438320,7422,3314,9229731285632,23645151256901,582351875,71241722,7077,8401,664.237.295.378.673
Miami MarlinsMiami Marlins581214-367.36821436719,5362,1514,555853705202,042971072941111,590622445,37242421,5747,1081,443.233.297.364.661
Kansas City RoyalsKansas City Royals583214-369.36721436919,6532,3144,7639321105832,211901454001351,563391984,93338821,6497,6641,625.242.303.390.693
Los Angeles AngelsLos Angeles Angels368134-234.36413423412,3411,4302,796519524021,3664473163561,087661463,31924513,6914,625973.227.295.375.670
Baltimore OriolesBaltimore Orioles622220-402.35422040221,1342,5695,071990747422,460691362891091,720462525,57041423,3118,4351,806.240.303.399.702
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