Template:SeasonBySeason HellmouthIVCup AA

In Hellmouth IV/Season 1 the Alewife Arsonists did not reach the postseason.
- They were the first Hot League team to be eliminated from the postseason (Partytime) on day 44.
In Hellmouth IV/Season 3 the Alewife Arsonists were the #4 seed in the Hot League.
- They defeated the Fargo Flea Flickers 3-2 in the Hot League Division Series.
- They lost the Hot League Championship Series to the Boylston Boogers 2-4.
In Hellmouth IV/Season 7 the Alewife Arsonists were the #1 seed in the Hot League.
- They lost the Hot League Division Series to the Boylston Boogers 2-3.
In Hellmouth IV/Season 10 the Alewife Arsonists did not reach the postseason.
- They were the first Hot League team to be eliminated from the postseason (Partytime) on day 41.
- They finished in last place in the Hot League.
In Hellmouth IV/Season 12 the Alewife Arsonists were the #1 seed in the Hot League.
- They were swept in the Hot League Division Series by the Delaware Corporate Shells .
In Hellmouth IV/Season 13 the Alewife Arsonists were the #4 seed in the Hot League.
- They swept the Fargo Flea Flickers 3-0 in the Hot League Division Series.
- They clinched the pennant by defeating the Jersey OSHA Violations 4-3 in the Hot League Championship Series.
- They became Hellmouth IV Cup champions by defeating the Seattle Sneakers 4-3.
In Hellmouth IV/Season 14 the Alewife Arsonists were the #3 seed in the Hot League.
- They lost the Hot League Division Series to the Detroit Grape Chews 2-3.
In Hellmouth IV/Season 16 the Alewife Arsonists were the #2 seed in the Hot League.
- They were swept in the Hot League Division Series by the Jersey OSHA Violations .
In Hellmouth IV/Season 17 the Alewife Arsonists did not reach the postseason.
- They were the first Hot League team to be eliminated from the postseason (Partytime) on day 42.
- They finished in last place in the Hot League.
In Hellmouth IV/Season 18 the Alewife Arsonists were the #4 seed in the Hot League.
- They lost the Hot League Division Series to the San Francisco Boat Shoes 1-3.
In Hellmouth IV/Season 19 the Alewife Arsonists did not reach the postseason.
- They narrowly missed the postseason by losing the tiebreaker to the Vegas Vampires .
In Hellmouth IV/Season 20 the Alewife Arsonists were the #1 seed in the Hot League.
- They defeated the Sugar Grove Eavesdroppers 3-2 in the Hot League Division Series.
- They lost the Hot League Championship Series to the Boylston Boogers 1-4.
In Hellmouth IV/Season 22 the Alewife Arsonists did not reach the postseason.
- They finished in last place in the Hot League.
In Hellmouth IV/Season 23 the Alewife Arsonists were the #4 seed in the Hot League.
- They lost the Hot League Division Series to the Jersey OSHA Violations 1-3.
In Hellmouth IV/Season 24 the Alewife Arsonists did not reach the postseason.
- They were the first Hot League team to be eliminated from the postseason (Partytime) on day 43.