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Highest single season ERA+ for a relief pitcher

craig44craig44 Posts: 12,838 ✭✭✭✭✭

Is Zack Brittons 2016 season the best ever when it comes to single season ERA+ for a reliever? his was a staggering 803!!!!

to put into reference, Eric Gagne's 2003 season, when he was 55/55 in converting saves and seemingly untouchable was at 337.

803 just seems unfathomable. even for a reliever who doesnt pitch many innings.

George Brett, Roger Clemens and Tommy Brady.

Comments

  • perkdogperkdog Posts: 33,816 ✭✭✭✭✭

    I'd probably still take Mariano Rivera though

  • galaxy27galaxy27 Posts: 10,033 ✭✭✭✭✭

    @craig44

    look up Devin Williams' 2020 season when he won rookie of the year

    fasten your seat belt

  • Basebal21Basebal21 Posts: 5,233 ✭✭✭✭✭

    The dispartity in the ERA plus between and Britton and Gagne is a joke. All of Gagnes numbers were better other than ERA which was very close and Britton got help with when half his runs given up were called unearned

    Fire AJ Preller

  • bgrbgr Posts: 4,243 ✭✭✭✭✭

    I don't know about that whole scoring aspect... but I think between the numbers Gagne's season was more impressive for the obvious reasons. In small samples like that where ERA is going to play a huge role as it does with a closer ERA really makes ERA+ look useless.

  • TabeTabe Posts: 6,379 ✭✭✭✭✭

    @galaxy27 said:
    @craig44

    look up Devin Williams' 2020 season when he won rookie of the year

    fasten your seat belt

    To be fair, that was barely a third of a season.

  • TabeTabe Posts: 6,379 ✭✭✭✭✭

    @Basebal21 said:
    All of Gagnes numbers were better other than ERA which was very close

    Gagne's ERA was nearly 2.5x as high as Britton's. You're right about the other stats but their ERAs were not that close.

  • galaxy27galaxy27 Posts: 10,033 ✭✭✭✭✭
    edited May 23, 2026 6:51AM

    @Tabe said:

    @galaxy27 said:
    @craig44

    look up Devin Williams' 2020 season when he won rookie of the year

    fasten your seat belt

    To be fair, that was barely a third of a season.

    he pitched enough to be named ROY, as well as receive CYA & MVP votes on top of that

  • bgrbgr Posts: 4,243 ✭✭✭✭✭

    @Tabe said:

    @Basebal21 said:
    All of Gagnes numbers were better other than ERA which was very close

    Gagne's ERA was nearly 2.5x as high as Britton's. You're right about the other stats but their ERAs were not that close.

    The ERA and the ERA+ only matter as much as the standard deviation a single sample can produce. Applying meaning to lucky numbers is the job of the guy making the fortune cookie and not the statistician.

  • ElMagoStrikeZoneElMagoStrikeZone Posts: 1,824 ✭✭✭✭✭

    I can put Gagne in perspective from having the privilege of seeing the locals on TV long before they packaged them into a pay-to-watch event. I also attended several games. In all my years of watching baseball, I don't think I've ever seen anyone who was more automatic for a time then Gagne. When he strolled to the mound, you knew the game was over. That was their mantra. GAME OVER. He dominated unlike anyone else in the closer role. Whatever was getting him there, it worked for awhile. As with many, he peaked, then spun deeper and deeper into ultimate irrelevancy. But, for that short period in time there was no one better.

  • Basebal21Basebal21 Posts: 5,233 ✭✭✭✭✭

    @Tabe said:

    @Basebal21 said:
    All of Gagnes numbers were better other than ERA which was very close

    Gagne's ERA was nearly 2.5x as high as Britton's. You're right about the other stats but their ERAs were not that close.

    It sounds worse saying it was 2x but its a 1.20 era va a 0.584

    Gagne gave up 12 runs in 82.1 innings and Britton gave up 7 in 67 innings. 11 of the 12 for Gagne were counted as earned, only 4 of the 7 were counted as earned for Britton. Thats a very high percentage of unearned runs. The difference in their era was just a couple runs, and scorer decisions on errors. It not even 3/4ths of a point difference.

    Theres no reason Brittons ERA+ should be almost triple Gagnes for those two seasons

    Fire AJ Preller

  • TabeTabe Posts: 6,379 ✭✭✭✭✭

    @Basebal21 said:
    Theres no reason Brittons ERA+ should be almost triple Gagnes for those two seasons

    Well, Gagne pitched in a strong pitcher-favoring stadium and Britton pitched in a hitter-favoring stadium and, again, Gagne's ERA was 2.5x that of Britton.

  • TabeTabe Posts: 6,379 ✭✭✭✭✭

    @galaxy27 said:
    he pitched enough to be named ROY, as well as receive CYA & MVP votes on top of that

    Sure - and was still a rookie the following year because he'd thrown so few innings. He was great but it was just 27 innings in a 60-game season.

  • galaxy27galaxy27 Posts: 10,033 ✭✭✭✭✭

    @Tabe said:

    he pitched enough to be named ROY, as well as receive CYA & MVP votes on top of that

    Sure - and was still a rookie the following year because he'd thrown so few innings. He was great but it was just 27 innings in a 60-game season.

    what's your point exactly? trying to diminish what he accomplished because his body of work didn't match your own personal criteria? good thing the ROY, CYA & MVP voters don't think the way you do. would have been a shame not to reward a guy who had the lowest ERA in a single season with at least 21 innings pitched since earned runs became an official stat in 1913.

  • Basebal21Basebal21 Posts: 5,233 ✭✭✭✭✭

    @Tabe said:

    @Basebal21 said:
    Theres no reason Brittons ERA+ should be almost triple Gagnes for those two seasons

    Well, Gagne pitched in a strong pitcher-favoring stadium and Britton pitched in a hitter-favoring stadium and, again, Gagne's ERA was 2.5x that of Britton.

    12 Runs vs 7 with almost 20 more innings pitched. The hardest park to pitch in the league is Colorado, Arizona was top 10 as well in 2003. In 2016 the two hardest were Colorado and Arizona.

    One or 2 scorers decisions changes the ERA dramatically. Weather plays a role but theres no justification for the ERA+ to be so far off

    Fire AJ Preller

  • bgrbgr Posts: 4,243 ✭✭✭✭✭

    Small denominators because of the limited event opportunities makes it less than ideal given the impact of any outcome.

    For closers, and most relief pitchers, use FIP and WPA. Even K-BB is more meaningful.

    ERA is not the right statistic for this. Here it’s a good luck stat -like most HRs with a hangover.

  • 1948_Swell_Robinson1948_Swell_Robinson Posts: 2,364 ✭✭✭✭✭

    @Basebal21 said:

    @Tabe said:

    @Basebal21 said:
    Theres no reason Brittons ERA+ should be almost triple Gagnes for those two seasons

    Well, Gagne pitched in a strong pitcher-favoring stadium and Britton pitched in a hitter-favoring stadium and, again, Gagne's ERA was 2.5x that of Britton.

    12 Runs vs 7 with almost 20 more innings pitched. The hardest park to pitch in the league is Colorado, Arizona was top 10 as well in 2003. In 2016 the two hardest were Colorado and Arizona.

    One or 2 scorers decisions changes the ERA dramatically. Weather plays a role but theres no justification for the ERA+ to be so far off

    You kind of answer your own question.

    Did you know that Terry Forster has a higher lifetime batting average than Ted Williams?

    When working with percentages, the sample size is of huge importance. You are talking about 67 IP for a season, and just one or two bad outings can change that percentage tremendously.

    But saying the ERA+ is 'wrong' or whatever is weird. It isn't wrong. It express his ERA compared to the league perfectly correctly. It just doesn't account fully for the value since it does not account for the Innings Pitched.

    Yes, the ballpark factor can be fudging it a little.

    However, in that same vein, Mark Prior was far, far more worthy of the Cy Young that year than Gagne anyway ;)

  • Basebal21Basebal21 Posts: 5,233 ✭✭✭✭✭

    @1948_Swell_Robinson said:

    @Basebal21 said:

    @Tabe said:

    @Basebal21 said:
    Theres no reason Brittons ERA+ should be almost triple Gagnes for those two seasons

    Well, Gagne pitched in a strong pitcher-favoring stadium and Britton pitched in a hitter-favoring stadium and, again, Gagne's ERA was 2.5x that of Britton.

    12 Runs vs 7 with almost 20 more innings pitched. The hardest park to pitch in the league is Colorado, Arizona was top 10 as well in 2003. In 2016 the two hardest were Colorado and Arizona.

    One or 2 scorers decisions changes the ERA dramatically. Weather plays a role but theres no justification for the ERA+ to be so far off

    You kind of answer your own question.

    Did you know that Terry Forster has a higher lifetime batting average than Ted Williams?

    When working with percentages, the sample size is of huge importance. You are talking about 67 IP for a season, and just one or two bad outings can change that percentage tremendously.

    But saying the ERA+ is 'wrong' or whatever is weird. It isn't wrong. It express his ERA compared to the league perfectly correctly. It just doesn't account fully for the value since it does not account for the Innings Pitched.

    Yes, the ballpark factor can be fudging it a little.

    However, in that same vein, Mark Prior was far, far more worthy of the Cy Young that year than Gagne anyway ;)

    Im a firm believer that the CY young should be for starters not relievers and that the MVP should be for position players not pitchers. All groups have their own awards and pitchers are the only ones that can win them all. I do think innings pitched/games played/at bats etc should all matter in the stats.

    I would have given the CY to Prior as well.

    My gripe with the Gagne Britton seasons is the discrepancy with the ERA+. Id even be fine if Brittons was a little higher though I dont think it should be is that looking at the two seasons to have an 800+ vs a 300+ . Gange had one bad game where he gave up 4 runs and 1 game where he gave up 2 at Colorado. Britton had a game where he gave up 3 and didnt finish the inning but they were all called unearned.

    Fire AJ Preller

  • TabeTabe Posts: 6,379 ✭✭✭✭✭

    @galaxy27 said:

    @Tabe said:

    he pitched enough to be named ROY, as well as receive CYA & MVP votes on top of that

    Sure - and was still a rookie the following year because he'd thrown so few innings. He was great but it was just 27 innings in a 60-game season.

    what's your point exactly? trying to diminish what he accomplished because his body of work didn't match your own personal criteria? good thing the ROY, CYA & MVP voters don't think the way you do. would have been a shame not to reward a guy who had the lowest ERA in a single season with at least 21 innings pitched since earned runs became an official stat in 1913.

    I mean, yeah, that is the point. Tons of guys have 27-inning stretches that are just as good or better. Heck, there's a guy in Philly right now working on 44 straight scoreless innings.

  • Basebal21Basebal21 Posts: 5,233 ✭✭✭✭✭

    2006 Cla Meredith another sick season for a reliever and over 30 innings scoreless streak.

    Agreed 27 innings is not enough and really the 60 game season in general just whatever thats not even half a season

    Fire AJ Preller

  • DarinDarin Posts: 7,692 ✭✭✭✭✭

    @Tabe said:

    @galaxy27 said:

    @Tabe said:

    he pitched enough to be named ROY, as well as receive CYA & MVP votes on top of that

    Sure - and was still a rookie the following year because he'd thrown so few innings. He was great but it was just 27 innings in a 60-game season.

    what's your point exactly? trying to diminish what he accomplished because his body of work didn't match your own personal criteria? good thing the ROY, CYA & MVP voters don't think the way you do. would have been a shame not to reward a guy who had the lowest ERA in a single season with at least 21 innings pitched since earned runs became an official stat in 1913.

    I mean, yeah, that is the point. Tons of guys have 27-inning stretches that are just as good or better. Heck, there's a guy in Philly right now working on 44 straight scoreless innings.

    That guy in Philly has the inside track on the Cy Young award over Ohtani because he’s already pitched 24 more innings than Shohei. As great as Shohei has been, innings pitched does matter like you say.

  • 1948_Swell_Robinson1948_Swell_Robinson Posts: 2,364 ✭✭✭✭✭

    @galaxy27 said:
    @craig44

    look up Devin Williams' 2020 season when he won rookie of the year

    fasten your seat belt

    Per modern times, Tyler Olson in 2017 had a 0.00 ERA over 20 IP. His ERA+ is blank because it is incalculable....so it is impossible to beat per your entry.

  • 1948_Swell_Robinson1948_Swell_Robinson Posts: 2,364 ✭✭✭✭✭

    So if looking at the value of all the mentioned, here are their Runs saved compared to the league average and league replacement pitcher(accounts for IP and other factors)....

    Britton 25 runs above league average, and 32 above league replacement level.
    Gagne 22 and 29
    Tyler Olson 10 and 12
    Devin Williams 9 and 11

    And none of them as valuable as John Hiller in 1973 as Hiller was 39 runs above league average and 51 above replacement...with his 38 saves. Of course, not many relief pitchers can match those single season numbers by Hiller. Hiller does have the highest single season WAR for a modern RP.

  • galaxy27galaxy27 Posts: 10,033 ✭✭✭✭✭
    edited May 28, 2026 9:53PM

    if you're a reliever and are going to string together 20, 30 or 40 immaculate innings, it's very important to do so in a pandemic year so you can take home some hardware

    in all seriousness, i actually feel sorry for the guy now. it seems as if he forgot how to pitch after he left bgr's team. actually, he foreshadowed what was to come in a game i was at in St. Louis when he still played for Milwaukee. easiest save situation of his career and he could not throw a strike if his life had depended on it. walked himself right into a blown save that was so egregious that it compelled me to look him up to see who he was. when i checked his stats and saw how unhittable he had been for multiple years, i couldn't believe it. that guy was not on the mound that night.

  • TabeTabe Posts: 6,379 ✭✭✭✭✭

    @galaxy27 said:

    @Tabe said:

    he pitched enough to be named ROY, as well as receive CYA & MVP votes on top of that

    Sure - and was still a rookie the following year because he'd thrown so few innings. He was great but it was just 27 innings in a 60-game season.

    what's your point exactly? trying to diminish what he accomplished because his body of work didn't match your own personal criteria? good thing the ROY, CYA & MVP voters don't think the way you do. would have been a shame not to reward a guy who had the lowest ERA in a single season with at least 21 innings pitched since earned runs became an official stat in 1913.

    And if you drop the cutoff even one out, the number gets beaten by Craig Kimbrel, with his 0.44 ERA.

  • galaxy27galaxy27 Posts: 10,033 ✭✭✭✭✭

    @Tabe said:

    @galaxy27 said:

    @Tabe said:

    he pitched enough to be named ROY, as well as receive CYA & MVP votes on top of that

    Sure - and was still a rookie the following year because he'd thrown so few innings. He was great but it was just 27 innings in a 60-game season.

    what's your point exactly? trying to diminish what he accomplished because his body of work didn't match your own personal criteria? good thing the ROY, CYA & MVP voters don't think the way you do. would have been a shame not to reward a guy who had the lowest ERA in a single season with at least 21 innings pitched since earned runs became an official stat in 1913.

    And if you drop the cutoff even one out, the number gets beaten by Craig Kimbrel, with his 0.44 ERA.

    and he'll still be rookie of the year no matter how many times you attempt to undermine what he accomplished

  • craig44craig44 Posts: 12,838 ✭✭✭✭✭

    @1948_Swell_Robinson said:

    @galaxy27 said:
    @craig44

    look up Devin Williams' 2020 season when he won rookie of the year

    fasten your seat belt

    Per modern times, Tyler Olson in 2017 had a 0.00 ERA over 20 IP. His ERA+ is blank because it is incalculable....so it is impossible to beat per your entry.

    that is an excellent point!! I think they should just include an infinity symbol in the slot for his ERA+!

    George Brett, Roger Clemens and Tommy Brady.

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