Combined 2021 starting pitcher ERA (rounded):

3.0 CWS
3.1
3.2
3.3
3.4 TBR
3.5 HOU
3.6
3.7
3.8 OAK
3.9 NYY, DET
4.0
4.1
4.2 TOR
4.3
4.4
4.5
4.6 BOS, TEX
4.7 CLE, SEA
4.8
4.9 LAA
5.0 MIN
5.1 KCR
5.2
5.3
5.4
5.5 BAL

— Codify (@CodifyBaseball) June 14, 2021