Iman Shumpert had his highest three-point percentage in a season in 2012-13, at 40.2 percent.

iman shumpert highest 3pt% in a season
2012-13Shumpert2016-17Shumpert2018-19Shumpert2014-15Shumpert2013-14Shumpert2011-12Shumpert2015-16Shumpert2017-18Shumpert2019-20Shumpert40.236.034.834.233.330.629.526.924.2
NAMESEASONTMGP3P%MPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PAFTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Iman ShumpertIman Shumpert2012-13NYKNYK4540.222.16.83.01.71.00.20.82.46.139.61.12.80.81.076.6996305136754373799-15
Iman ShumpertIman Shumpert2016-17CLECLE7636.025.57.52.91.40.80.41.02.66.441.11.23.40.91.278.91,937567218109622778150+45
Iman ShumpertIman Shumpert2018-19TOT6234.823.97.53.01.81.00.40.82.77.237.41.54.40.60.780.01,481465183112592450127-46
Iman ShumpertIman Shumpert2014-15TOT6234.224.98.03.62.21.30.31.53.17.641.01.13.20.71.067.21,545496224135811691138+61
Iman ShumpertIman Shumpert2013-14NYKNYK7433.326.56.74.21.71.20.21.12.56.537.81.03.10.71.074.61,962495308129921379209+153
Iman ShumpertIman Shumpert2011-12NYKNYK5930.628.99.53.22.81.70.11.93.69.140.10.82.71.51.879.81,7055631861641018111173+113
Iman ShumpertIman Shumpert2015-16CLECLE5429.524.45.83.81.71.00.41.12.15.637.40.82.70.70.978.41,31631120392541957119+182
Iman ShumpertIman Shumpert2017-18CLECLE1426.919.74.42.91.20.60.31.11.64.137.90.51.90.81.173.3276624117941622+27
Iman ShumpertIman Shumpert2019-20BKNBKN1324.218.54.22.60.90.90.20.81.64.932.80.62.50.30.557.12415434121221021-52
StatMuse has season-level data for three-point percentage going back to the 1979-80 season.