Managers
Tendency data derived from the public game log — what the dugouts actually did, year by year.
The growth of the reliever
Steal attempts per game
Steal success rate
Sacrifice bunts per game
The relief revolution, as it happened
| Year | Club | Event | Notes |
|---|---|---|---|
| 1910 | Maple Grove Sawyers | invention | blown_leads=5 arm=Clay Coble (87 mph fastball) |
| 1912 | Maple Grove Sawyers | receipt | wins=92 |
| 1914 | Port Vernon Longshoremen | reinvention | blown_leads=5 arm=Cecil Ingram (87 mph fastball) |
| 1914 | Dunmore Miners | adoption | share=0.19 |
| 1914 | Fairhaven Herons | adoption | share=0.19 |
| 1915 | Kingsbridge Kings | adoption | share=0.31 |
| 1916 | Harbor City Mariners | adoption | share=0.31 |
| 1917 | Eastvale Owls | adoption | share=0.38 |
| 1917 | Oakhurst Acorns | adoption | share=0.38 |
| 1918 | Larkspur Larks | adoption | share=0.44 |
| 1918 | Northgate Sentinels | adoption | share=0.44 |
| 1920 | Brixton Brewers | adoption | share=0.56 |
| 1923 | Dunmore Miners | adoption | share=0.62 |
| 1924 | Calloway Colts | adoption | share=0.69 |
| 1927 | Ashland Foxes | adoption | share=0.75 |
| 1929 | Maple Grove Sawyers | adoption | share=0.88 |
| 1933 | Granite Falls Granites | adoption | share=0.94 |