The 2015 Senior League World Series took place from August 2–8 in Bangor, Maine, United States. Houston, Texas defeated Holmes County, Ohio in the championship game. It was the second straight title for Houston's West University Little League.

Quick Facts Tournament information, Location ...

2015 Senior League World Series

Tournament information
Location	Bangor, Maine
Dates	August 2–8, 2015
Final positions
Champions	Houston, Texas
Runner-up	Holmes County, Ohio
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A modified double-elimination format was introduced this year.

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Group A

	—					—					—					Bracket Final
						1–0	Texas	8
	—	Arizona	4			—	Virginia	2
	—	Texas (F/12)	5								2–0	Texas	1
											1–0	Pennsylvania	5
						—	Curaçao	0
						—	Pennsylvania (F/10)	3
																2–0	Pennsylvania	1
																3–1	Texas	4
	Lower round 1					Lower round 2					Lower final
											2–1	Texas	4
						0–1	Virginia	9			1–1	Virginia	2
	0–1	Arizona	3			1–1	Curaçao	6
	0–1	Curaçao	7

Group B

	—					—					—					Bracket Final
						1–0	Northern Mariana Islands	2
	—	Italy	5			—	Maine	6
	—	Northern Mariana Islands	10								1–0	Maine	2
											1–0	Ohio	13
						—	Canada	3
						—	Ohio	6
																2–0	Ohio	9
																2–1	Maine	2
	Lower round 1					Lower round 2					Lower final
											1–1	Maine	11
						1–1	Northern Mariana Islands	8			2–1	Northern Mariana Islands	8
	0–1	Canada	3			1–1	Italy	4
	0–1	Italy	6

Consolation round

	—
	1–2	Curaçao	6
	0–2	Canada	1

	—
	0–2	Arizona (F/8)	6
	1–2	Italy	5

Elimination Round

	Semifinals					World Championship
	2–0	Pennsylvania	1
	3–1	Texas	4
						4–1	Texas	8
						3–0	Ohio	1
	2–0	Ohio	9
	2–1	Maine	2