2026 Miken Ultra Gamer HOF Bob O'Brien Supermax Slowpitch Bat Review
Bob O'Brien's Hall of Fame signature model — the heaviest end load in Miken's HOF senior lineup on a full 13.5" one-piece barrel.
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How we score ↗How big and forgiving the barrel is — based on barrel length, construction (one- vs two-piece, alloy vs composite), and how it plays on balls hit off the center. A primary driver of the overall score.
Raw exit velocity and distance. We use measured numbers from freely available independent testing when they exist; otherwise construction and consensus, judged against the certification’s performance ceiling. A primary driver of the overall score.
Comfort and feedback on contact — vibration dampening from the knob/connection, the sting of a stiff one-piece vs a smooth two-piece, and the sound off the barrel. A primary driver of the overall score.
How well it holds up and how the company stands behind it — documented cracking/denting reports, cold-weather behavior, and the brand’s real warranty record. Good to know, but weighted lightly in the score.
Our take on price-for-performance — the overall package weighed against its cost and what comparable bats run. Shown for context; it is NOT factored into the overall score (price changes too often and is personal).
Why this score: First-pass: the heaviest end load in the HOF senior line, scored like our 2026 Ultra Gamer SuperMax (8.6) — maximum power on a 13.5" one-piece E-Flex 360+ barrel, with the swing weight that implies. $279 is good value for senior composite.
Our Review
The 2026 Miken Ultra Gamer HOF Bob O'Brien Supermax is the max-power build of Miken's new Hall of Fame series for SSUSA and ISA senior play. It pairs a full 13.5" E-Flex 360+ barrel — exclusive C-4 carbon fiber with a new multi-resin system for up to 10% more barrel flex around the circumference — with a Supermax 1 oz end load, double the end weight of a standard Maxload. The one-piece frame keeps energy transfer stiff and direct, while the Mid Flex handle and A1 Knob keep the heavy barrel under control. Offered in 25, 26, 27, and 28 oz. Newly added to the CheapBats catalog — independent testing hasn't caught up to this release yet, so treat this as a sourced first look rather than a scored review.
Pros & Cons
Pros
- Full 13.5" E-Flex 360+ barrel with C-4 carbon fiber for up to 10% more flex
- Supermax 1 oz end load — the heaviest in the HOF lineup
- One-piece build keeps energy transfer stiff and direct
Cons
- Heaviest end load in the series demands strong bat speed
- New signature line — no independent senior-play testing track record yet
Full Specifications
| Brand | Miken |
|---|---|
| Model | Ultra Gamer HOF Bob O'Brien Supermax |
| Model Year | 2026 |
| Certification | Slowpitch |
| Sport | Softball |
| Construction | One-piece composite (E-Flex 360+ barrel, C-4 carbon fiber, Mid Flex handle) |
| Model # | MSS6OB1X |
| Drop | — |
| Barrel | 13.5" |
| Swing Weight | Supermax End-Load (1 oz) |
| MSRP | $279 |
Where to Buy
2026 Miken Ultra Gamer HOF Bob O'Brien Supermax Slowpitch Bat — FAQ
Is the 2026 Miken Ultra Gamer HOF Bob O'Brien Supermax a good Slowpitch bat?
We rate it 8.5/10 (Grade A). Bob O'Brien's Hall of Fame signature model — the heaviest end load in Miken's HOF senior lineup on a full 13.5" one-piece barrel.
Is the Miken Ultra Gamer HOF Bob O'Brien Supermax Slowpitch-legal?
Yes — it's Slowpitch certified by the certifying labs. Certified for USSSA / NSA / ISA slowpitch play.
How much does the 2026 Ultra Gamer HOF Bob O'Brien Supermax cost?
MSRP is $279. We've seen it for $250. We list the lowest price across CheapBats and Amazon on this page.
New to buying bats? Read our bat sizing guide, certifications explained, or browse all guides.
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Sources: CheapBats — 2026 Miken Ultra Gamer HOF Bob O'Brien Supermax (MSS6OB1X) product page