Duora 8 XP
Model DUO-8XP · Ng Ka Long Angus
Price history
Chart: monthly median of verified pre-owned sales · USD · methodology
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Duora 8 XP: the 35 lb high-tension Duora Ng Ka Long took to a German Open final
A Duora built for high tension
Yonex built the Duora 8 XP around a stringing trend. Its Japanese announcement of January 16, 2018 said demand for high tension was growing among hard hitters, who wanted sharper repulsion and the hitting sound of top players, and it rated the 8 XP for strings up to 35 lb. A footnote added that the Duora Z-Strike, the series’ Extra Stiff model, was rated to 29 lb. The name is Yonex’s own shorthand: XP stands for Xtra Performance. Yonex released it worldwide at the same time, in late March 2018, made in Japan, in one color and one weight, at ¥25,000 before tax in Japan. Two weeks before that release, Hong Kong’s Ng Ka Long Angus had already reached the German Open final with it.
A stiffer frame, damped all the way round
Like every Duora, the 8 XP uses Yonex’s Dual Optimum System, a box profile on the forehand face and an aero profile on the backhand. To keep strings at high tension from biting into and deforming the frame, Yonex raised the frame’s stiffness and changed the direction of the carbon fibers inside it to spread the load; the global release calls them multi-direction carbon fibers. The Vibslayer Carbon that the Duora 6 carried in the lower half of its frame runs here around the entire frame, to cut the shock of hard hitting on the elbow and wrist. Yonex lists a high-modulus carbon frame with Nanometric DR and Vibslayer Carbon and a high-modulus carbon shaft with Nanometric; the frame is 10 mm longer than standard. Yonex rates the flex Stiff, and Yonex Japan’s balance gauge places it at even. Yonex Japan called it a Duora for hard hitters chasing smashes and drives, aimed it at advanced and intermediate men, and said it shows its strength in the drives and lunging shots of the mid-court.
Ng Ka Long’s German Open
Yonex’s reports name one professional with the 8 XP. At the German Open in Mülheim, a Super 300 event, Ng Ka Long Angus reached the men’s singles final with it, strung with BG80, and lost on March 11, 2018 to Chou Tien Chen of Chinese Taipei, who played a Duora Z-Strike. Yonex called the final a faceoff of Duora racquets and Ng’s first runner-up finish since he adopted the newly released 8 XP. Yonex documents no other player with it.
One color, and no Duora 8
The 8 XP came in one finish, Aqua Night Black, and one size, 3U (average 88 g), with G4 or G5 grips, under item code DUO8XP. Yonex documents no player edition, limited color or redesign. Despite the name, there is no standard Duora 8. Yonex Japan’s Duora lineup ran Z-Strike, 10, 7 and 6 in 2017 and added the 8 XP and the Duora 10 LT in 2018, and the export Duora 88 is a different, Taiwan-made racquet. In purpose the 8 XP sits nearest the Z-Strike, but Yonex rated it Stiff rather than Extra Stiff and gave it a 35 lb ceiling instead of 29 lb.
Sold worldwide, gone by 2022
The 8 XP was never a limited or regional model. Yonex Japan announced it as a simultaneous worldwide release, Yonex’s global site published the launch the next day, and Yonex USA’s 2019 catalog carried it. Yonex’s global product page still showed it in stock in October 2020, though the global Duora list no longer included it by September 2021. Yonex Japan still listed it in January 2022, with the Z-Strike, 10, 10 LT, 7 and 6; by late March 2022 only the Z-Strike and the 7 remained. Yonex published no production-end notice. Verified sales from Asia resale show a steady flow of pre-owned examples; the price panel above lists them.
Copies and mix-ups
No counterfeit report specific to the 8 XP has been found, and Yonex published no guide for the model; the callout lists checks against Yonex’s own documentation. The likelier confusion is within the family. The Z-Strike, the Duora 10 and the Duora 7 are also Japan-made Duoras sold in 3U, and the export Duora 88 has a near-identical name. The model name, the flex rating and the Aqua Night Black finish separate them. Yonex recommends 20–35 lb for the 8 XP, so a frame strung in the low 30s is within its rating, though above Yonex’s advice for the Z-Strike and the Duora 7.
The tension specialist
Among the Duoras, the 8 XP had a narrow job. Yonex’s 2017 history of its Isometric racquets called the Z-Strike the series’ most attacking model, and the Duora 7 was its all-rounder; the 8 XP’s distinction is its tension rating, not outright power. It also carried Vibslayer Carbon further than any Duora before it, from the lower frame of the 6 to the whole frame. Its documented tour record is a single final, and by 2022 Yonex was winding the range down to the Z-Strike (the Duora 10 page tells that part).
Yonex’s item code is DUO8XP. The frame should be marked Made in Japan and carry the DUORA 8XP name, and the frame is 10 mm longer than standard. Yonex offered only 3U (average 88 g), with G4 or G5 grips, rated the flex Stiff and documented one finish, Aqua Night Black. Run a finger around the head: one face should have a squared box profile and the other a slimmer aero profile. A 4U or 2U label, another color or a Taiwan marking points to a different Duora. Yonex’s own guidance: production codes are laser-engraved on the cap above the handle, and a genuine hologram sticker resists lifting.
The 8 XP is a standard model sold worldwide for about four years, with one documented tour final. Its interest lies in its single purpose, a Duora built for high-tension stringing, and its single finish. Buy on condition and identity. Ask for daylight photographs of both head profiles, the shaft and the cap above the handle, confirm the 8XP name, the Japan marking and a 3U label, and look for cracks and repainting. Treat a racquet offered as a “Duora 8” or as a limited regional edition with care: Yonex made neither.
Verified prices last updated Sep 2026. All data based on tracked secondary market transactions.