Equipment profile · Manufacturer kit
Frances Tiafoe String Tension & Setup
The Yonex kit lists the PERCEPT 97 and POLYTOUR PRO 125. No tension is published.
By String Tension AI · Published · Research checked
This is a source-based equipment profile, not an official Frances Tiafoe page. It reports what Yonex lists for Frances, compares that listing with our catalog row, and does not fill the missing tension with an estimate.
Yonex’s athlete page lists Frances Tiafoe with the Yonex PERCEPT 97 racquet and Yonex POLYTOUR PRO 125 string. The kit lists one string. That fits a full bed, but the page does not confirm what goes in the crosses. The kit lists the 1.25 mm version of POLYTOUR PRO. Yonex states no string tension, and this profile does not show one as his setting: a product listing identifies equipment, not a stringing-machine reference setting. Our catalog row lists POLYTOUR PRO 1.25 in the mains with no cross and no racquet record. The kit agrees on the string and gauge and adds the PERCEPT 97.
Evidence: Yonex
Frances Tiafoe’s setup at a glance
- Player
- Frances Tiafoe
- Racquet
- Yonex PERCEPT 97
- Strings listed
- Yonex POLYTOUR PRO 125
- Gauge
- 1.25 mm
- Mains / crosses
- One string listed
- Reference tension
- Not stated by the manufacturer
- Catalog row
- Agrees on string and gauge
- Evidence status
- Manufacturer page, undated
- Research checked
- 2026-10-03
View all 69 sourced pro string setups →
What strings does Frances Tiafoe use?
Yonex POLYTOUR PRO 125, as listed on Yonex’s athlete page.
The kit lists one string. That fits a full bed, but the page does not confirm what goes in the crosses. The kit lists the 1.25 mm version of POLYTOUR PRO.
What string tension does Frances Tiafoe use?
Yonex does not state a tension. A product listing identifies equipment; it is not a stringing-machine reference setting, a later stringbed measurement or a personal specification.
The Frances Tiafoe row in the pro string setups table carries a tension from Too Many Rackets, accessed by our catalog on 2026-07-16. We have not reconfirmed it for this profile, so it is not repeated here as his current setting.
How this profile compares with our pro setups table
Our catalog row lists POLYTOUR PRO 1.25 in the mains with no cross and no racquet record. The kit agrees on the string and gauge and adds the PERCEPT 97.
Scroll the table sideways to compare all source details.
| Field | Yonex (checked 2026-10-03) | Our catalog row (secondary source: Too Many Rackets) |
|---|---|---|
| Racquet | Yonex PERCEPT 97 | No matched racquet record |
| Strings | Yonex POLYTOUR PRO 125 | Mains: Yonex POLYTOUR PRO 1.25 mm · Crosses: Not reported |
| Mains / crosses | One string listed | Cross not reported |
| Tension | Not stated | Listed by the secondary source; not reconfirmed |
What racquet does Frances Tiafoe use?
Yonex’s athlete page lists the Yonex PERCEPT 97. A manufacturer listing names the model; it does not establish the weight, balance or customization of a professional’s own frame.
Should an app reading match a pro’s machine setting?
No. Even where a professional’s reference setting is published, a later app reading estimates installed stringbed tension, a different physical state. For Frances there is no confirmed setting at all. Read the reference setting and stringbed estimate distinction, then compare readings with your own fresh-string baseline.
Track your own setup instead of copying a pro
A professional’s equipment is context. Your useful comparison comes from your own racquet history. In String Tension AI, save your frame, string, gauge and reference tension, measure a fresh-string baseline and repeat under similar conditions.
Follow the repeatable measurement workflow and watch tension loss alongside feel and hours played. This does not imply that Frances Tiafoe uses or endorses String Tension AI.
What this means for a club player
This page does not show a confirmed main reference setting, so there is no professional number to compare against, and you do not need one. Your starting point comes from your own racquet and the string construction you choose.
- Look up your frame’s published range in the racquet tension range table.
- Choose your string construction and playing objective in the starting-tension calculator.
- After restringing, take a fresh-string baseline reading and judge later readings by relative change, alongside feel and hours played.
Frances Tiafoe string setup FAQ
What strings does Frances Tiafoe use?
Yonex’s athlete page lists Yonex POLYTOUR PRO 125. The kit lists one string. That fits a full bed, but the page does not confirm what goes in the crosses.
What string tension does Frances Tiafoe use?
Yonex does not state one, and this profile does not show a tension as his setting. The tension in our catalog row comes from an older secondary source that we have not reconfirmed.
What gauge does Frances Tiafoe use?
The kit lists the 1.25 mm version of POLYTOUR PRO.
Is Frances’s setup a full bed or a hybrid?
The kit lists one string. That fits a full bed, but the page does not confirm what goes in the crosses.
What racquet does Frances Tiafoe use?
Yonex lists the Yonex PERCEPT 97. The listing names the model, not the specifications of a professional’s own frame.
How does this profile compare with the pro setups table?
Our catalog row lists POLYTOUR PRO 1.25 in the mains with no cross and no racquet record. The kit agrees on the string and gauge and adds the PERCEPT 97.
Should I copy Frances’s setup?
There is no confirmed tension to copy, and a professional’s frame, swing and stringing support differ from yours. Start from your own racquet’s published range and the string construction you choose.
What app reading should match Frances’s setup?
None. There is no confirmed machine setting to use as a target, and a later app reading estimates installed stringbed tension, a different quantity. Compare your readings with your own fresh-string baseline instead.
Sources and methodology
The manufacturer source establishes the listed equipment. It does not state a tension, assign strings to mains and crosses, or give personal frame specifications, so this profile leaves those fields open rather than estimating them. The catalog row is compared field by field. The manufacturer listing is treated as the stronger identification: on October 3, 2026, catalog strings, gauges and racquet records that differed from it were changed to match. Tension, string direction and any gauge the manufacturer does not state still come from the secondary source. See the parent catalog methodology.
The manufacturer source was checked on 2026-10-03. The secondary source shows the date our catalog accessed it; it was not rechecked for this profile. Publication dates are shown only when supplied by the source; an access date is not a claim that an undated page was published that day. No personal racquet was inspected for this profile.
First-party manufacturer evidence
- Yonex: Frances Tiafoe athlete kit
Lists the Yonex PERCEPT 97 racquet and Yonex POLYTOUR PRO 125 string. States no string tension. Accessed 2026-10-03.
Secondary source behind the catalog row
- Too Many Rackets: Strings and tension used by professional tennis players
Secondary source behind the Frances Tiafoe row in our 2026 catalog. The date below is the catalog’s access date; the source was not rechecked for this profile, and its tension is not repeated here. Accessed 2026-07-16.
String Tension AI public data
- String catalog: dated numeric snapshot
- Racquet catalog: model context and uncertainty notes
- Editorial evidence and source links
No racquet record is linked to this player in the racquet catalog. See the public racquet weight contract for weight basis and source definitions.