Since 2017-18, the Boston Celtics have the best record by a team as underdogs, with a record of 48-64.

what team has the best record as an underdog since 2017-18
CelticsHeatRaptorsNuggetsBucksJazz76ersGrizzliesClippersThunderNetsSpursWizardsLakersMavericksHornetsPacersPelicansTrail BlazersKingsWarriorsCavaliers48-6466-8955-7547-7427-4534-5743-7487-15154-9582-14674-13270-12981-15262-11966-12983-16465-12974-14762-12492-18943-9281-180
TEAMGPRECW%MPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF
Boston CelticsBoston Celtics11248-64.429242.2108.344.522.87.54.613.039.588.444.712.434.136.416.921.479.227,13012,1294,9812,5558395181,4542,278
Miami HeatMiami Heat15566-89.426241.8105.343.624.77.54.614.239.186.145.412.634.636.414.619.774.437,47516,3276,7543,8361,1617162,2023,151
Toronto RaptorsToronto Raptors13055-75.423241.7109.543.323.68.34.912.840.188.945.112.735.435.916.520.979.031,42514,2335,6323,0631,0836331,6632,771
Denver NuggetsDenver Nuggets12147-74.388241.9108.842.725.87.54.213.340.888.146.311.732.636.015.519.778.329,26513,1615,1683,1229125111,6082,365
Milwaukee BucksMilwaukee Bucks7227-45.375242.1107.242.822.58.54.613.839.687.845.111.432.834.916.621.377.717,4307,7153,0781,6236093299961,485
Utah JazzUtah Jazz9134-57.374242.7106.542.623.08.14.514.538.785.745.112.534.236.716.621.477.422,0909,6953,8772,0947354141,3191,895
Philadelphia 76ersPhiladelphia 76ers11743-74.368241.9107.444.223.87.84.814.039.787.645.311.031.634.717.022.177.228,30512,5615,1672,7839135671,6432,461
Memphis GrizzliesMemphis Grizzlies23887-151.366241.3106.443.224.68.35.013.739.787.745.210.629.935.316.521.477.457,42025,33310,2885,8431,9691,1903,2605,088
L.A. ClippersL.A. Clippers14954-95.362241.5108.344.122.26.84.513.639.687.145.510.629.236.218.524.376.135,98516,1376,5673,3091,0146642,0203,124
Oklahoma City ThunderOklahoma City Thunder22882-146.360241.9105.745.621.87.64.513.938.988.843.711.534.733.216.422.074.855,14524,09410,3954,9661,7351,0243,1734,368
Brooklyn NetsBrooklyn Nets20674-132.359241.9109.844.823.96.34.313.739.988.944.912.535.435.417.522.976.449,84022,6179,2284,9281,3048852,8314,302
San Antonio SpursSan Antonio Spurs19970-129.352241.1109.743.324.77.04.912.241.489.746.110.228.435.916.721.278.847,98521,8378,6254,9161,3969842,4263,669
Washington WizardsWashington Wizards23381-152.348241.7111.642.425.17.54.213.341.489.346.310.930.635.618.023.277.656,32026,0089,8795,8381,7539733,0954,916
Los Angeles LakersLos Angeles Lakers18162-119.343242.5109.245.023.77.64.814.740.989.046.010.631.333.816.823.471.943,89019,7578,1524,2851,3698772,6663,775
Dallas MavericksDallas Mavericks19566-129.338241.4106.043.322.46.63.912.538.586.644.412.736.135.216.321.276.647,07520,6678,4384,3741,2927612,4303,894
Charlotte HornetsCharlotte Hornets24783-164.336242.1106.943.324.47.44.513.039.188.344.312.134.135.416.722.474.659,80526,41610,6946,0151,8181,1053,2194,603
Indiana PacersIndiana Pacers19465-129.335240.9108.242.324.58.14.813.240.989.345.810.930.336.015.620.177.846,73520,9988,2014,7531,5709382,5643,885
New Orleans PelicansNew Orleans Pelicans22174-147.335241.4110.945.525.77.44.714.341.690.146.211.132.034.716.622.075.453,34024,51810,0455,6851,6451,0323,1624,463
Portland Trail BlazersPortland Trail Blazers18662-124.333240.7108.243.520.97.04.513.139.688.644.711.933.535.617.021.778.744,76520,1218,0983,8921,3008382,4283,800
Sacramento KingsSacramento Kings28192-189.327241.4108.142.123.87.64.213.440.988.946.011.130.836.215.220.474.467,84030,38111,8416,6812,1311,1863,7755,760
Golden State WarriorsGolden State Warriors13543-92.319240.9107.442.725.87.64.714.439.287.145.011.934.035.017.021.479.732,52514,4965,7623,4841,0256311,9502,797
Cleveland CavaliersCleveland Cavaliers26181-180.310241.7105.642.922.67.03.413.939.286.545.410.830.635.316.321.277.063,09027,57111,1935,9061,8218773,6194,921
Atlanta HawksAtlanta Hawks26681-185.305241.3109.243.524.27.74.614.939.988.745.012.134.235.317.322.178.464,19029,04911,5756,4472,0411,2123,9715,699
Phoenix SunsPhoenix Suns21766-151.304241.8107.742.723.67.84.414.739.887.845.310.129.634.018.123.178.352,48023,3649,2595,1211,6929563,1864,926
Minnesota TimberwolvesMinnesota Timberwolves22064-156.291241.7111.343.223.98.24.913.640.590.444.812.134.435.118.123.577.353,17524,4839,5015,2491,8121,0872,9954,610
Orlando MagicOrlando Magic30383-220.274240.7104.243.523.37.14.813.038.788.243.911.232.734.115.720.377.372,94531,57813,1887,0582,1421,4593,9495,739
New York KnicksNew York Knicks27976-203.272241.4104.844.921.66.94.613.438.987.944.310.229.235.116.722.474.767,36029,24812,5166,0191,9291,2953,7255,912
Chicago BullsChicago Bulls27473-201.266241.6105.442.823.27.73.913.739.788.445.010.630.335.015.319.777.866,18528,88411,7336,3612,1151,0593,7415,436
Houston RocketsHouston Rockets18046-134.256241.0109.842.622.67.54.715.039.187.744.613.840.234.217.824.273.743,37519,7627,6654,0721,3558522,6913,769
Detroit PistonsDetroit Pistons27770-207.253241.5104.242.223.07.44.313.638.186.743.911.232.734.116.922.375.766,90528,87511,6896,3642,0511,2003,7775,798