Kasco Seam 1 Straight
The Kasco Seam 1 Straight is a two-piece, single cover golf ball with 332 dimples, made by Kasco Corporation in Japan. Its manufacturer declares low with driver, low with short iron spin. It appears on the R&A and USGA List of Conforming Golf Balls effective 2 September 2026 to 6 October 2026, under identifier RC2026-0163.
What the official list says
- Pole markingsWhat is printed on the two poles of the ball: usually brand and model.
- Kasco Z in gold
- Seam markingsWhat is printed on the equator: alignment line, number, minor text.
- Seam 1: (arrow) Z Straight (arrow) with split line above and below in gold with horizontal lines above and below in blue Seam 2: (arrow) Z Straight (arrow) with horizontal lines above and below in blueSeam 3: (arrow) Z Straight (arrow) in gold with horizontal lines above and below in blue Seam 4: (arrow) Z Straight (arrow) with horizontal lines above and below in blue
- Cover colour
- white
- Construction
- two-piece, single cover2P-1c
- Covers
- single cover
- Driver spin
- low
- Short-iron spin
- low
- Spin profile
- low with driver, low with short ironL-L
- Dimples
- 332
- Manufacturer
- Kasco Corporation
- Country
- Japan
- Identifier
- RC2026-0163
Data from the List of Conforming Golf Balls (USGA and R&A), edition effective 2 September 2026 to 6 October 2026. The list itself is the only valid source for a ruling. See the official list at The R&A ↗
Frequently asked
Is the Kasco Seam 1 Straight conforming for competition play?
Yes: it is on the R&A and USGA List of Conforming Golf Balls effective until 6 October 2026. For a ruling, always check the current edition of the official list.
How many pieces does the Kasco Seam 1 Straight have?
According to the manufacturer it is a two-piece, single cover ball (code 2P-1c on the official list).
How many dimples does the Kasco Seam 1 Straight have?
332 dimples, as declared by Kasco Corporation on the official list.
What is printed on the Kasco Seam 1 Straight?
On the poles: Kasco Z in gold. On the equator: Seam 1: (arrow) Z Straight (arrow) with split line above and below in gold with horizontal lines above and below in blue Seam 2: (arrow) Z Straight (arrow) with horizontal lines above and below in blue; Seam 3: (arrow) Z Straight (arrow) in gold with horizontal lines above and below in blue Seam 4: (arrow) Z Straight (arrow) with horizontal lines above and below in blue. Markings identify the ball on the conforming list; the play number does not count as a marking.