Jordan Spieth had his best winning percentage in a season in 2014-15, winning 20.0 percent of the time.

what team does jordan have the best record against
Interpreted as:
What team does jordan have the best record in a season against?
Not what you're looking for?
2014-15Spieth2016-17Spieth2015-16Spieth2021-22Spieth2012-13Spieth2020-21Spieth.200.130.100.091.043.040
NAMESEASONEVENTSW%TOP 10WINSSCORING AVGROUNDSGIR%FWY%DRIVING DISTANCE AVGPUTTING AVGSAND SAVE%SCRAMBLING %FEDEXCUP POINTSMONEY
Jordan SpiethJordan Spieth2014-1525.20015568.98867.962.9291.81.758.165.03,800$12,030,465
Jordan SpiethJordan Spieth2016-1723.13012368.88270.060.0295.61.755.861.82,340$9,433,033
Jordan SpiethJordan Spieth2015-1620.1008269.57663.758.6295.21.755.864.51,168$5,371,870
Jordan SpiethJordan Spieth2021-2211.0912171.23869.658.0306.21.847.866.7955$2,827,964
Jordan SpiethJordan Spieth2012-1323.0439169.78266.967.8289.41.751.661.12,519$3,879,820
Jordan SpiethJordan Spieth2020-2125.0409170.18864.653.9299.51.755.961.32,232$6,470,482
StatMuse has season-level data for tournament win percentage going back to the 1979-80 season.