Yates:      40-50%      50-60%      60-70%      70-80% John Riley Tanner Republican Richard Yates Jr. Republican The 1900 Illinois gubernatorial election was held on November 6, 1900.

Incumbent Republican Governor John Riley Tanner retired in order to unsuccessfully run for U.S. Senate.

Republican nominee Richard Yates Jr. defeated Democratic nominee Samuel Alschuler with 51.49% of the vote.

The Democratic state convention was held on June 26 and 27, 1900 at the State Capitol in Springfield.

[5][6] The results of the balloting were as follows:[7][8][9] The Republican state convention was held from May 8, 1900 at Peoria.