A note about home runs allowed

Since Jon Heyman loves to talk about them as regards Bert Blyleven. Blyleven does have two of the three biggest HR allowed seasons in history:

1. Bert Blyleven, 1986 - 50
2. Jose Lima, 2000 - 48
3t. Bert Blyleven, 1987 - 46
3t. Robin Roberts, 1956 - 46

But:

Blyleven, 1986: 17-14, 4.01 ERA (107 ERA+)
Blyleven, 1987: 15-12, 4.01 ERA (115 ERA+)
Roberts, 1956: 19-18, 4.45 ERA (84 ERA+)
Lima, 2000: 7-16, 6.65 ERA (75 ERA+)

Lima and Roberts both led the league in ER allowed. Blyleven did not, either year.

So what do home runs allowed really mean? I'll tell you: longevity. Here's the top 21 (there was a tie for 20th) in baseball history:

1. Robin Roberts, 505
2. Jamie Moyer, 491
3. Fergie Jenkins, 484
4. Phil Niekro, 482
5. Don Sutton, 472
6. Frank Tanana, 448
7. Warren Spahn, 434
8. Bert Blyleven, 430
9. Steve Carlton, 414
10. Randy Johnson, 411
11. David Wells, 407
12. Gaylord Perry, 399
13. Jim Kaat, 395
14. Jack Morris, 389
15. Charlie Hough, 383
16. Tom Seaver, 380
17. Mike Mussina, 376
18. Catfish Hunter, 374
18. Tim Wakefield, 374
20. Jim Bunning, 372
20. Dennis Martinez, 372

So, of those 21, ten are in the Hall of Fame. Johnson is a slam-dunk first-ballot. Mussina could very well make it.

Not in the Hall: Moyer, Tanana, Blyleven, Wells, Kaat, Morris, Hough, Wakefield, Martinez. Of those guys, only Morris and Wakefield did not pitch in more than 20 big league seasons (Wakefield might yet).

And then there's this: how do they rank in terms of HR/9? Baseball-reference only does it to one decimal place, but:

1t. Moyer, Wakefield, Wells - 1.1
4t. Hunter, Jenkins, Roberts, Tanana - 1.0
8t. Bunning, Hough, Johnson, Morris, Mussina - 0.9
13t. Blyleven, Kaat, Martinez, Niekro, Sutton - 0.8
18t. Carlton, Perry, Seaver, Spahn - 0.7

So while he ranks eighth in total home runs allowed, Blyleven only gave up 0.8 per 9, which compares favorably with Hall of Famer, and total home runs allowed career leader, Robin Roberts.

For that matter, Roberts never led the league in ERA, and he twice led in losses, and three times in earned runs and homers allowed. He doesn't have 300 wins. His winning percentage and ERA+ are comparable to Blyleven's (slightly higher WP, few points lower in ERA+). I'm not saying we should set the Hall's standards by its weakest member, but...

The point is, Jon Heyman needs to find a new stat. This one is clearly worthless. But then, he'd know that, if he knew anything.