» June 11, 1985: Von Hayes becomes the first ML player ever to hit two home runs in the first inning, leading off with a home run, off Tom Gorman, and capping a 9-run outburst with a grand slam, as the Phillies go on to rout the Mets 26–7. Mets relievers Joe Sambito (3 innings) and Calvin Schiraldi (1.1 innings) both give up 10 runs apiece. The 26 runs in one game is a club record and the most in the National League since 1944.
» October 11, 1986: Trailing 3–0 entering the bottom of the 9th inning, California rallies for three runs off Roger Clemens and Calvin Schiraldi, and goes on to defeat the Red Sox 4–3 in 11 innings to take a 3-1 lead in the ALCS.
» October 18, 1986: Boston wins Game One of the World Series 1–0 when Tim Teufel botches Rich Gedman's routine grounder in the 7th inning, allowing Jim Rice to score the game's only run. Bruce Hurst and Calvin Schiraldi combine on a 4-hitter for the Red Sox.
» October 25, 1986: Trailing 5–3 with two out and no one on base in the bottom of the 10th inning, New York rallies to win game six of the World Series 6–5 and force a deciding 7th game. After Gary Carter, Kevin Mitchell, and Ray Knight single, Bob Stanley uncorks a wild pitch that permits the tying run to score, and a hobbled Bill Buckner lets Mookie Wilson's slow bouncer skip through his legs, allowing Knight to score the winning run. Reliever Calvin Schiraldi absorbs the loss.
» October 27, 1986: The Mets win game seven of the World Series 8–5 at Shea Stadium. 3B Ray Knight, whose leadoff home run off Calvin Schiraldi in the 7th inning, triggers a 3-run rally, is named MVP. Schiraldi is pinned with his 2nd straight loss, the only pitcher ever to lose games six and 7.
» December 8, 1987: Cincinnati trades OF Dave Parker to the A's for pitchers Jose Rijo and Tim Birtsas, the Braves trade SS Rafael Ramirez to the Astros for a pair of minor leaguers, and in the day's biggest (and most lopsided) deal, the Cubs send dominating reliever Lee Smith to the Red Sox for pitchers Al Nipper and Calvin Schiraldi.
» September 4, 1988: Cincinnati's Danny Jackson becomes the National League's first 20-game winner by shutting out the Cubs on six hits as the Reds romp 17–0. Calvin Schiraldi is the loser.
» August 31, 1989:
Minutes before the postseason rosters must be filed, the Cubs obtain 3B Luis Salazar and OF Marvell Wynne from San Diego in exchange for P Calvin Schiraldi, OF Darrin Jackson and 1B Phil Stephenson. Salazar will play a key role in the Cubs' title run, while of the three new Pad people, only Jackson will perform decently.