A major cap-tip to Baseball-Reference.com for its assistance in this compilation.
1- Jonathon Niese's one-hitter marked the 23rd time a Mets pitcher has thrown a regular season complete game one-hitter of nine innings or more. The Mets also had one in Game 4 of the 2000 NLDS against the Giants from Bobby Jones.
2- Of those 23, only two other Mets pitchers threw accomplished the feat without allowing either a hit batsman or a walk -- Tom Seaver against the Cubs in 1969 (his near-perfect game of 8 1/3 innings) and Steve Trachsel against the Rockies.
Niese and Seaver are the only pitchers in Mets history to throw a one-baserunner one-hitter (Trachsel's game also included a Mets error).
CG w/ 1-Baserunner, Mets history
3- Technically speaking, it was the 34th one-hitter (complete game or combined) in Mets history (including the Jones' effort in the postseason). But that list includes two losses in which the Mets pitched only eight innings, and two wins in which the Mets pitched fewer than nine innings.
4- This was Niese's 18th major league game pitched. That's the fewest games pitched by any Met to throw a complete game one-hitter (nine innings or more). Aaron Heilman held the previous mark, getting a one-hitter in his 21st game, against the Marlins in 2005.
5- Since the Mets came into existence in 1962, Niese is one of only six pitchers to throw a complete game (nine innings or more), yielding one baserunner of fewer, within the first 18 games of his career.
Threw CG of 9+ IP, First 18 Games
0 or 1 Baserunners, since 1962
Incredibly, the most recent was by Mat Latos, who got the win for the Padres in the first game of the doubleheader. He pitched a one-hitter against the Giants on May 13th in his 17th big league game.
6- Niese is the sixth Mets pitcher, age 23 or younger to throw a complete game one-hitter. The youngest on the list was 19-year-old Dwight Gooden (1984 vs Cubs). Others on the list: Pete Schourek, Jon Matlack, Gary Gentry, and Nolan Ryan.
7- By the Bill James metric, Game Score (which measures starts based on innings, runs allowed, hits allowed, strikeouts and walks), Niese finished with a game score of 91.
It marked the 40th time that a Mets starter pitched to a game score of 91 or better in a regular season game, the first since Tom Glavine scored a 92 with a two-hit, 11-strikeout shutout in 2005.
8- Of a much more trivial nature: Niese drew two walks, marking the 39th time in Mets history that a pitcher had a multi-walk game (the team record is three, shared by Jay Hook in 1962 and Jon Matlack in 1975.
9- This was the third time in Mets history that they pitched a one-hitter against the Padres. The others were by Seaver in 1972 (a no-hitter broken up in the ninth inning) and David Cone in 1988.
10- Chris Denorfia, who had the Padres only hit, was born in Bristol, Connecticut, the home of ESPN.
Mark Simon is a researcher for Baseball Tonight. Follow him on Twitter at @msimonespn or e-mail him at firstname.lastname@example.org.