| | | |
| June 12, 2018 | W | Brewster Whitecaps 1 at Cotuit Kettleers 10 | Final |
| June 13, 2018 | | Bourne Braves at Cotuit Kettleers | Ppd. |
| June 14, 2018 | L | Cotuit Kettleers 2 at Wareham Gatemen 4 | Final |
| June 15, 2018 | L | Hyannis Harbor Hawks 4 at Cotuit Kettleers 1 | Final |
| June 16, 2018 | W | Cotuit Kettleers 6 at Orleans Firebirds 2 | Final |
| June 17, 2018 | W | Yarmouth-Dennis Red Sox 4 at Cotuit Kettleers 5 (Game 1) | Final (7) |
| June 17, 2018 | W | Yarmouth-Dennis Red Sox 3 at Cotuit Kettleers 11 (Game 2) | Final (7) |
| June 19, 2018 | W | Cotuit Kettleers 10 at Hyannis Harbor Hawks 4 | Final |
| June 20, 2018 | W | Orleans Firebirds 4 at Cotuit Kettleers 5 | Final |
| June 21, 2018 | L | Cotuit Kettleers 1 at Yarmouth-Dennis Red Sox 6 | Final |
| June 22, 2018 | L | Cotuit Kettleers 4 at Brewster Whitecaps 5 | Final |
| June 23, 2018 | | Orleans Firebirds at Cotuit Kettleers | Ppd. |
| June 24, 2018 | W | Cotuit Kettleers 6 at Chatham Anglers 1 (Game 1) | Final (7) |
| June 24, 2018 | | Cotuit Kettleers at Chatham Anglers (Game 2) | Susp. |
| June 26, 2018 | L | Harwich Mariners 10 at Cotuit Kettleers 3 | Final |
| June 27, 2018 | W | Cotuit Kettleers 6 at Bourne Braves 5 | Final |
| June 29, 2018 | L | Cotuit Kettleers 6 at Falmouth Commodores 7 | Final (10) |
| June 30, 2018 | L | Cotuit Kettleers 1 at Yarmouth-Dennis Red Sox 4 | Final |
| July 1, 2018 | W | Chatham Anglers 3 at Cotuit Kettleers 4 | Final (11) |
| July 2, 2018 | T | Cotuit Kettleers 2 at Falmouth Commodores 2 | Final (12) |
| July 3, 2018 | L | Wareham Gatemen 8 at Cotuit Kettleers 1 | Final |
| July 5, 2018 | L | Falmouth Commodores 17 at Cotuit Kettleers 7 | Final |
| July 6, 2018 | | Bourne Braves at Cotuit Kettleers | Ppd. |
| July 7, 2018 | W | Hyannis Harbor Hawks 3 at Cotuit Kettleers 8 | Final |
| July 8, 2018 | W | Cotuit Kettleers 4 at Harwich Mariners 1 | Final |
| July 9, 2018 | L | Cotuit Kettleers 3 at Bourne Braves 9 | Final |
| July 11, 2018 | L | Cotuit Kettleers 2 at Hyannis Harbor Hawks 5 | Final |
| July 12, 2018 | T | Wareham Gatemen 2 at Cotuit Kettleers 2 | Final (10) |
| July 13, 2018 | L | Cotuit Kettleers 2 at Wareham Gatemen 8 | Final |
| July 14, 2018 | W | Cotuit Kettleers 9 at Hyannis Harbor Hawks 5 | Final |
| July 15, 2018 | L | Falmouth Commodores 8 at Cotuit Kettleers 1 | Final |
| July 17, 2018 | L | Harwich Mariners 11 at Cotuit Kettleers 3 | Final (7) |
| July 18, 2018 | T | Cotuit Kettleers 3 at Harwich Mariners 3 | Final (12) |
| July 19, 2018 | W | Hyannis Harbor Hawks 2 at Cotuit Kettleers 7 | Final |
| July 20, 2018 | L | Chatham Anglers 10 at Cotuit Kettleers 9 | Final (8) |
| July 21, 2018 | W | Cotuit Kettleers 4 at Wareham Gatemen 3 | Final (10) |
| July 24, 2018 | W | Bourne Braves 3 at Cotuit Kettleers 4 | Final |
| July 25, 2018 | W | Cotuit Kettleers 8 at Brewster Whitecaps 6 | Final |
| July 27, 2018 | W | Cotuit Kettleers 6 at Orleans Firebirds 5 | Final |
| July 28, 2018 | | Brewster Whitecaps at Cotuit Kettleers | Ppd. |
| July 29, 2018 | W | Cotuit Kettleers 8 at Bourne Braves 2 | Final |
| July 30, 2018 | W | Brewster Whitecaps 2 at Cotuit Kettleers 9 | Final |
| July 31, 2018 | T | Wareham Gatemen 4 at Cotuit Kettleers 4 | Final |
| August 1, 2018 | L | Cotuit Kettleers 3 at Falmouth Commodores 8 | Final |
| August 2, 2018 | W | Falmouth Commodores 4 at Cotuit Kettleers 5 | Final |
| August 4, 2018 | | Cotuit Kettleers at Wareham Gatemen (Playoff Gm. 1) | Ppd. |
| August 5, 2018 | L | Cotuit Kettleers 2 at Wareham Gatemen 3 (Playoff Gm. 1) | Final |
| August 6, 2018 | L | Wareham Gatemen 15 at Cotuit Kettleers 6 (Playoff Gm. 2) | Final |
Cotuit Kettleers Schedule
