Dennis Colleran Jr. #40
Northwest Arkansas Naturals
Double-A Affiliate
- P
- B/T: R/R
- 6' 3"/225
- Age: 22
- Dennis Patrick Colleran Jr.
- Status: Active
- Born: 8/20/2003 in North Attleboro, MA
- Draft: 2024, Kansas City Royals, Round: 7, Overall Pick: 197
- College: Northeastern
2026 Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 37 | 2-1 | 8.61 | 38.2 | 32 | 2.22 |
MiLB Career Stats
| G | W-L | ERA | IP | SO | WHIP |
|---|---|---|---|---|---|
| 81 | 11-1 | 4.97 | 105.0 | 104 | 1.49 |
| Year | W | L | ERA | G | GS | SV | IP | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|
| 2026 MiLB Stats | 2 | 1 | 8.61 | 37 | 0 | 3 | 38.2 | 32 | 2.22 |
| MiLB Career Stats | 11 | 1 | 4.97 | 81 | 0 | 6 | 105.0 | 104 | 1.49 |
- Next NWA Game: 8-07 vs WCH
More Dennis Colleran Jr.
Dennis Colleran's sixth strikeout in two innings
Dennis Colleran's strikeout in High-A debut
Magic Number Shrinks to One With 5-Run Ninth
Fireflies Lose 2-0 Behind Woods Strong Start
McNair Round-Tripper Sparks Offense in 5-3 Win
Strong Start Falls Flat in 7-4 Loss
Shields Dazzles in Debut as Fireflies Win 20th of 2025
Fireflies Blanked 4-0 in Opener in Charleston
Jones Twirls Fireflies Second Quality Start of Season in 5-2 Win
Latest Transactions
| Team | Date | Transaction |
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March 5, 2026 | RHP Dennis Colleran assigned to Kansas City Royals Prospects. |
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January 27, 2026 | Kansas City Royals invited non-roster RHP Dennis Colleran to spring training. |
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September 10, 2025 | RHP Dennis Colleran assigned to Surprise Saguaros. |
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September 9, 2025 | RHP Dennis Colleran assigned to Northwest Arkansas Naturals from Quad Cities River Bandits. |
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June 24, 2025 | RHP Dennis Colleran assigned to Quad Cities River Bandits from Columbia Fireflies. |
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April 2, 2025 | RHP Dennis Colleran assigned to Columbia Fireflies. |
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July 21, 2024 | Kansas City Royals signed RHP Dennis Colleran. |
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June 16, 2024 | College Workout activated RHP Dennis Colleran. |
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June 9, 2024 | RHP Dennis Colleran assigned to College Workout. |
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April 2, 2024 | RHP Dennis Colleran assigned to Chatham Anglers. |
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February 19, 2024 | College Workout activated RHP Dennis Colleran. |
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February 16, 2024 | RHP Dennis Colleran assigned to Northeastern Huskies. |
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August 23, 2023 | RHP Dennis Colleran assigned to College Workout. |
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June 9, 2023 | Hyannis Harbor Hawks activated RHP Dennis Colleran. |
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June 9, 2023 | Hyannis Harbor Hawks activated RHP Dennis Colleran. |
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February 24, 2023 | RHP Dennis Colleran assigned to Northeastern Huskies. |
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February 24, 2022 | RHP Dennis Colleran and assigned to Northeastern Huskies. |
+ Show More Transactions