The following is the schedule for the 2018 COBA Major Baseball League Playoff Tournament which will take place from August 17th - 19th at the Milton Sports Complex. Results will be updated through the weekend after games are completed. Game will also be updated on Twitter as well by following @COBABaseball.
Friday, August 17th
| Game # | Time | Team #1 | Team #2 | Field | ||
| Game #4 | 6:00pm | 3rd Seed - Miss SW | 0 | 6th Seed - Brampton | 4 | Milton #1 |
| Game #3 | 6:00pm | 2nd Seed - Erindale | 0 | 7th Seed - Burlington | 4 | Milton #2 |
| Game # | Time | Team #1 | Team #2 | Field | ||
| Game #1 | 8:30pm | 1st Seed - Etobicoke | 4 | 8th Seed - Oakville | 3 | Milton #1 |
| Game #2 | 8:30pm | 4th Seed - Niagara | 8 | 5th Seed - Milton | 3 | Milton #2 |
Saturday, August 18th
| Game # | Time | Team #1 | Team #2 | Field | ||
| Game #5 | 10:00am | Loser Gm #1 - Oakville | 0 | Loser Gm #2 - Milton | 4 | Milton #2 |
| Game #6 | 10:00am | Loser Gm #3 - Erindale | 10 | Loser Gm #4 - Miss SW | 6 | Milton #1 |
| Game # | Time | Team #1 | Team #2 | Field | ||
| Game #7 | 1:00pm | Win Gm #1 - Etobicoke | 4 | Win Gm #2 - Niagara | 0 | Milton #2 |
| Game #8 | 1:00pm | Win Gm #3 - Burlington | 5 | Win Gm #4 - Brampton | 8 | Milton #1 |
| Game # | Time | Team #1 | Team #2 | Field | ||
| Game #9 | 4:00pm | Win Gm #5 - Milton | 1 | Win Gm #6 - Erindale | 9 | Milton #2 |
| Game #10 | 4:00pm | Loser Gm #7 - Niagara | 5 | Loser Gm #8 - Burlington | 4 | Milton #1 |
| Game # | Time | Team #1 | Team #2 | Field | ||
| Game #11 | 7:00pm | Win Gm #7 - Etobicoke | 3 | Win Gm #8 - Brampton | 2 | Milton #2 |
Sunday, August 19th
| Game # | Time | Team #1 | Team #2 | Field | ||
| Game #12 | 10:00am | Brampton | 10 | Niagara | 5 | Milton #1 |
| Game #13 | 10:00am | Erindale | 5 | Etobicoke | 1 | Milton #2 |
*Teams for the semi-finals will be paired up to avoid previous match-ups from earlier in the tournament
| Game # | Time | Team #1 | Team #2 | Field | ||
| Game #14 | 1:45pm | Brampton | 1 | Etobicoke | 8 | Milton #2 |
*If three teams remain, there will be a draw for a bye and then remaining two teams will face each other
**If two teams remain, they will play each other for the league championship
| Game # | Time | Team #1 | Team #2 | Field | ||
| Game #15 | 4:15pm | Erindale | 1 | Etobicoke | 2 | Milton #2 |