Isiah Thomas put up his most career points per game versus the Celtics, with 22.5 per game.

isiah thomas highest career ppg by opponent
BOSUTADENCHILALMINNJNPHXINDSASPHICLEHOUSEAATLPORLACSACMIAWASDALORL22.521.621.321.021.020.720.420.019.719.619.419.319.319.219.119.119.018.818.518.317.617.3
OPPGPPPGMPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
CelticsCeltics
5922.538.63.89.28.619.444.10.51.634.44.86.278.02,2761,325227544196
JazzJazz
2521.635.03.78.40.48.016.847.70.62.126.95.06.872.987654092210988
NuggetsNuggets
2321.334.73.610.13.48.216.649.20.51.730.04.46.073.9799490832337859
BullsBulls
6821.036.73.89.42.07.716.646.30.61.442.65.16.677.82,4931,431258637137207
LakersLakers
2421.036.53.810.58.218.544.40.31.420.64.35.874.18765049125389
TimberwolvesTimberwolves
1020.738.62.28.01.20.24.38.015.551.60.61.540.04.15.870.738620722801224317
NetsNets
5720.436.13.49.37.716.945.30.44.76.473.62,0581,162194531178
SunsSuns
2320.036.93.110.41.50.23.47.715.749.30.41.332.34.15.871.4848461722403557872
PacersPacers
6719.736.33.89.07.616.147.40.44.05.276.12,4301,317252604204
SpursSpurs
2419.636.23.88.71.40.13.97.916.747.10.51.825.03.44.378.8868471922083439475
76ers76ers
5819.436.93.59.20.27.516.645.10.31.227.54.15.376.62,1391,12520253313198
CavaliersCavaliers
6519.336.63.69.50.27.416.246.00.44.15.377.42,3761,25723461916180
RocketsRockets
2619.336.53.38.77.617.344.10.41.329.43.74.975.09495028622664
SuperSonicsSuperSonics
2219.237.53.39.01.40.13.87.316.843.50.51.729.74.15.475.6826423721983128456
HawksHawks
7019.135.93.89.57.015.844.30.54.75.979.52,5141,337264668224
Trail BlazersTrail Blazers
2419.136.03.810.11.33.47.516.545.50.61.735.03.54.577.886445892242328283
ClippersClippers
2519.034.73.19.60.07.515.249.20.43.75.567.286847577240155
KingsKings
2518.835.93.310.12.30.47.615.150.40.23.44.870.28984708225357970
HeatHeat
2018.537.03.19.41.60.23.97.615.648.70.61.536.72.73.773.0739369621873147844
BulletsBullets
5818.335.93.18.97.115.944.40.24.05.177.22,0851,062179518170
MavericksMavericks
2517.634.83.68.83.27.016.043.80.51.436.13.14.274.3871441892197965
MagicMagic
1617.335.43.39.41.40.33.26.916.940.70.11.68.03.44.576.4566277521512345142
WarriorsWarriors
2117.037.33.811.01.80.23.36.415.541.20.51.532.33.74.582.1783356792323756965
KnicksKnicks
6016.636.23.98.76.215.240.40.34.05.276.82,171995231522197
BucksBucks
6516.335.13.78.92.40.25.914.241.80.41.624.54.15.475.12,2821,06124158015414226
HornetsHornets
1916.135.42.87.01.60.23.66.713.948.10.21.021.12.53.473.8673306531333146946