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Hammer Obsession Bowling Ball


Solid Reactive


Heavy Oil

Strong Midlane & Backend Motion


2.468 (15lb.)

.050 (15lbs.)

.013 (15lbs.)



Envy Solid CFI

500, 1500 Siaair Micro Pad



High Performance

Hammer Obsession Bowling Ball

(13 customer reviews)


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Hammer Obsession Bowling Ball Features:

The Obsession is one of two new releases in the Hammer High Performance line sharing the same main core geometry. The Obsession has more flare potential than the Obsession Tour, and it uses the Envy Solid CFI coverstock. This is the first time since the change in production facilities for Hammer that a carbon fiber additive has been used in the coverstock. The Obsession core design utilizes the Durability Optimization Technology (DOT) system, which places the pin on the bottom of the ball to provide more layout flexibility. The Obsession is finished with 500 and 1500 SiaAir, giving it plenty of traction for use in heavy oil or longer oil conditions.

Two ball launches can be pretty predictable; usually, it’s a solid and a pearl with the same core and cover; it’s a formula that has worked forever. Hammer wanted to be different this time, so we thought outside the box and threw standard convention to the wind. Hammer is excited to introduce the Hammer Obsession and the Obsession Tour.

This is a two-ball launch, both having a solid cover; the difference is the core. The Obsession and Obsession Tour have the same core shape; however, the flip block has been eliminated from the Tour edition, lowering the differential .016 points, creating less flare, less hook, and a more controllable reaction compared to the regular Obsession. While the covers are both solid, they are different; the Obsession has a new strong formula called Envy Solid CFI, where Hammer has gone back to infusing the shell with carbon fiber. The Obsession Tour uses an updated version of the Tour cover found on the Web Tour balls.

13 reviews for Hammer Obsession Bowling Ball

  1. David Varner

    This obsession has beautiful appeal with the pink popping while it rolls down lane. Don’t let the pretty color fool you though this ball digs in and puts in work. I have this ball earlier and overall a little stronger than the redemption solid. This is gonna be a great ball to start the night off and will transition easy to the obsession tour.

  2. Bob Newman

    This is gonna be your big asymmetric core, solid cover, eat up the oil ball. It will be your go to ball on heavy volume or long oil patterns. For me it is very close in shape to the Redemption solid. I would say it gets a little bit farther down lane and is a little more angular thru the pin deck. Overall very nice shape with good carry.

  3. gerard

    This is a strong, continuous ball motion. This will give you some serious motion down the lane. If you are looking for something to cut through the oil then this is the ball for you. I was able to see a little more length down the lane than I usually do with most solids and it still had enough left to corner hard through the pins. Overall I really liked the shape from front to back!

  4. Joe Goldstein, Sr.

    The Hammer Obsession is a serious hook monster that won’t disappoint. Lots of muscle to navigate the heaviest oil patterns. This is a great ball on the fresh that is early yet continuous through the deck. The Obsession has a nice coloration that will definitely turn heads by it’s look just before the smash of the pins!

  5. Scott Gilmore

    Wow! Can you say hook??? The Hammer Obsession, is definitely obsessed with oil. This ball might hook on ice. I drilled mine with the pin just above my ring finger. I’m telling you the DOT technology is fantastic! The first pattern i bowled on with it was Kegel’s Great Wall of China. 48-feet. This ball dug right through the oil. Rolls incredibly well. If you want a ball for the fresh, or heavy oil, look no further than the Obsession.

  6. TJ Mento

    The Obsession is the new Big Asymmetrical ball from Hammer. It is used best on heavier oiled conditions long and short. I had success with it on a 35′ pattern but with heavy volume so don’t think it’s a ball for only long oil patterns. I compared it to the Redemption Solid and found them very comparable. If you are looking for a new ball to fill that hole then this is the ball you are looking for.

  7. Michael Romero

    Hammer’s all new Obsession is exactly what you need heading into tournament season! This is going to be your ideal heavy oil ball with some versatility as transition starts to happen. With plenty of units, this can be your game block ball, but if the midlane starts to go towards the drier end, the ball may lose energy downlane. I drilled mine 55 x 4 1/2 x 35 at 1000-grit surface, this ball has made me look good so many times! I can’t wait for more bowling alleys to open up and to get more good use out of this ball! 

  8. Bob moran

    Heavy oil? Long patterns? Look no farther then the Hammer Obession. This ball has an aggressive midlane read with strong backend to get thru the heaviest of volumes.

  9. Jessica Aiezza

    I have found this to be another great benchmark ball. Smooth and even rolling, demolishing all the pins in its path. Together with the Obsession Tour, these are great pieces to have in your arsenal for medium/medium heavy oil patterns.

  10. C. Miller

    The Obsession by Hammer is a big, asymmetrical ball that is for heavy oil or longer patterns. On your THS, I found the Obsession is pretty clean up front, starts digging in the mids, and offers a strong change of direction, off the pattern with a continuous motion through the deck.

  11. Christopher Doerr

    70 x 2 ¼ x 35 – PAP 4 ½ -> and ½^ – Speed – 15mph – Rev Rate 380
    I have not tried a high end performance hammer ball in a while because I was always stuck on the throwback upper-mid performance. I decided to short pin this ball because of the strong numbers, strong cover and being a solid. My first 16 frames in league with this ball were 10 pin, 10 pin, and then the next 14 strikes after making an adjustment. I still ended up with a good series after that but the lanes were breaking down different from normal so I had to work through the transition. I should have changed balls because this ball is strong and needed more oil. I would recommend for heavy oiled patterns, also this ball rolls very strong and very little deflection through the pins.

  12. T. Marlow

    Hammer Obsession, this is going to be that Big Engine Ball. Currently the strongest ball in the Hammer Line. This ball is the monster among men with a RG of 2.46, Diff of .050 which means it will slice though any heavy oil pattern.

    I drilled mine 45×4.5×35 same as my Obsession tour. The difference was it would pick up about a foot soon and finish hard on the backend where the tour was just smooth and continuous.
    This ball will be in both the tournament bag and league bag as the heavy oil ball.

  13. Christina L.

    The Obsession is Hammer’s heavy oil ball. It goes a little longer than the Redemption Solid, but has more overall hook. Compared to the Obsession Tour, the Obsession had a stronger response to friction. On a typical house shot, I was about 2 to 3 boards left of where I was with the Obsession Tour. I also felt more confident playing a tighter inside line with the regular Obsession as it made the corner in the oil and carried despite my average rev rate. If you are rev-challenged and dealing with medium to heavy oil, this ball would be an excellent addition to your arsenal because of its hook potential.

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