Awesome research, thanks. I was a fan in 1974 but had forgotten that string of five shutouts.
This last two weeks of rotation excellence (and your list) is giving me flashbacks to the summer of love (1967), when I started to make game logs to savor the strings of shutouts and low-hit gems by Oriole starters. Looking back now at the game logs kept by Baseball-Reference (manually, without your sorting skills!), it's hard to identify exactly which streak so impressed my teenage fan-meter, or even which year. Certainly 1968 was all about low scoring league-wide.
Maybe it was the stretch 22-27 May 1967 featuring Phoebus, Bertaina, Barber, McNally, and Phoebus again (good old 4-man rotation!), including three scoreless outings. Or Hardin and Brabender joining Phoebus, McNally and Palmer from 15 to 20 September, 1967.
What about 1969, with Cuellar, Lopez and Leonhard joining the previous cast of McNally, Phoebus, and Hardin, twirling 10 starts (13-22 June) while allowing only 12 runs.
Anyway, it feels rather historic to see this run of high-end pitching from an Orioles rotation. Here's a chart to recap the numbers on this streak in progress...
Date
Starter
IP
H
ER
ERA
(14 G)
totals:
81.67
59
19
2.09
21-Apr
Irvin
6.2
4
0
22-Apr
Suarez
5.2
4
0
23-Apr
Rodriguez
4.1
11
7
24-Apr
Kremer
5.1
3
2
26-Apr
Burnes
6
3
1
27-Apr
Irvin
7
4
0
28-Apr
Suarez
4
7
4
29-Apr
Rodriguez
5.2
5
0
30-Apr
Kremer
7
4
2
1-May
Burnes
6
4
2
2-May
Bradish
4.2
4
1
3-May
Irvin
6.1
2
0
4-May
Means
7
3
0
5-May
Kremer
6
1
0