Touchpads

From Libre Aquatics Wiki, the free aquatics reference

A touchpad, or touch panel, is the pressure-sensitive board hung at the end of a swimming lane that records the swimmer’s finish and turn. When a hand or foot touches the panel it closes an internal switch and sends a timing signal to the timing console, which stops that lane’s clock. In a fully automatic officiating setup a touchpad stands at both ends of every lane, backed up by pushbuttons, so the swimmer’s own touch, not a human timekeeper, records the official time.

History and development¶

Automatic touchpad timing grew out of a timing dispute at the 1960 Rome Olympic Games, where two swimmers were recorded at the same time by a panel of judges with hand stopwatches.¹ Machine timing was already in use there. Rome’s official report records thirty timekeepers for the pool’s ten lanes, each lane fitted with an apparatus connected to the starter’s pistol, and the finishes recorded by timekeepers pressing three independent buttons per lane, with the hand timekeeping service running alongside.² The dispute showed that a finish taken by people could still be contested, which is the argument for letting the swimmer’s own touch stop the clock. The button arrangement Rome used is covered on the semi-automatic timing overview.

Touch boards reached the Games within four years. The official report of the 1964 Tokyo Games records a fully automatic finish-order apparatus, triggered from the starter’s pistol and reading the finish from a then-new touch board, which the Games made their official timer that year.³ The Munich 1972 report traces the contact mats of its primary system back to those Tokyo pads, and marks one change: by 1972 the built-in sensing was electronic, where at Tokyo it had been pneumatic.⁴ World Aquatics, writing about its Omega partnership, instead dates the touch panel to the 1967 Pan American Games and the 1968 Mexico City Olympic Games.¹ The organising-committee reports are the more authoritative source for what was installed at their own Games, and the Munich note about pneumatic boards suggests the later date belongs to the electronic pad rather than to touch boards as such.

By letting the swimmer’s own touch stop the clock, the panels made the finish self-timed to a hundredth of a second and removed reliance on human timekeepers.¹ Colorado Time Systems, founded in 1972, has built touchpads on the same all-plastic, air-filled design since then.⁵⁶

How a touchpad works¶

A touchpad must ignore the constant wave action and turbulence of a racing pool yet register the light touch of a finishing or turning swimmer, then close a switch that signals the timer. Manufacturers meet this requirement in different ways. Colorado Time Systems uses an air-filled panel whose sensitivity is set by its internal air pressure, and the Daktronics T-7000 series uses layered conductive plates.⁵⁶ A third approach appears in a 1995 Seiko Instruments patent, which describes a panel switch overlaid with a fine mesh so that a swimmer’s touch bears on the raised points of the mesh and closes the switch, while the load of wave action spread across the whole face does not.⁷ That a panel must tell a real touch from accidental water contact is a long-standing engineering problem: a 1992 Seiko patent for a swimming-race timing system covers the same discrimination.⁸ Neither patent is tied to a product on sale, and Seiko publishes no sensing principle for the touch plates it currently makes.⁹

Governing-body requirements¶

Under World Aquatics facilities rules the equipment records each swimmer’s time to a hundredth of a second and must not interfere with starts, turns, or the pool’s overflow system.¹⁰ The rules set a touch panel’s minimum size at 2.4 m wide and 0.9 m high with a thickness of 0.01 m, positioned to extend 0.3 m above and 0.6 m below the water surface, wired independently per lane, and finished in a bright colour bearing the end-wall line markings. The panel is installed in the centre of each lane and may be portable so the operator can remove it when no race is being held. Its sensitivity must be such that water turbulence cannot trigger it but a light hand touch can, and it must be sensitive along the top edge.¹⁰

Products¶

Several companies make aquatic touchpads and timing equipment; besides Colorado Time Systems, the principal manufacturers are Swiss Timing (Omega), Daktronics, and Seiko.⁶ This section catalogs the swimming touchpads covered on this wiki, which are those made by Colorado Time Systems (CTS), Daktronics and Seiko. The CTS panel is all-plastic and air-filled, with sensitivity set by internal air pressure, and the Daktronics panel uses three conductive stainless-steel plates and reads a touch as a change in electrical charge; Seiko gives the panel material and dimensions of its plates but no sensing principle.⁵⁶⁹

Product	Model or prefix	Surface	Connector	Status
AquaGrip touchpad	`TP-…G` (gutter) / `TP-…GF` (flat-wall)	Patented AquaGrip non-slip texture	10 ft cable, dual banana plug	Current
Standard touchpad	`TP-…` / `TP-…F`	Textured non-skid surface	10 ft cable, dual banana plug	Discontinued
Multizone pads	None published	Not published	Not published	Announced 2008; no evidence of production
T-7000 series touchpad	Daktronics `T-7060`–`T-7096`, `FT-7150`–`FT-7240T`	Non-slip textured stainless steel; three conductive plates	Dual banana plug; OmniSport 2000	Documented; also listed under Daktronics’ discontinued-product resources
Seiko AQUA touch plate	None published in Japanese; `TP-3000` on Seiko’s older English pages	High-impact resin panel, 2,400 mm wide	Lane box per lane, then the `PT-9000` printing timer	Current
Seiko full-frame touch plate	None published in Japanese; `TP-3019` on Seiko’s older English pages	High-impact resin panel, 1,900 mm wide	Lane box per lane, then the `PT-9000` printing timer	Current

CTS has built touchpads on the same all-plastic, air-filled design since 1972; its current line is the AquaGrip touchpad, which adds a patented non-slip surface texture over the Standard touchpad it has replaced, and a single user guide (F147) covers both.¹¹¹²¹³ The Multizone pads row is blank in most columns because CTS named that product in a 2008 catalogue without ever describing it, and no evidence has been found that it was built.¹⁴ Seiko sells two plates of the same resin construction in different widths, and certifies only the wider one to World Aquatics rules; the narrower plate is listed for Japanese domestic competition alone.⁹¹⁵

The AquaGrip touchpad article covers the CTS panel in full and the Standard touchpad article covers the discontinued surface it replaced, the T-7000 series touchpad article covers the Daktronics stainless-plate pad, and the Seiko AQUA Touch Plate and Seiko Full-Frame Touch Plate articles cover the two Seiko plates; this page is the shared overview they refer back to.

References¶

World Aquatics, How Omega keeps advancing timekeeping in swimming (on the Rome 1960 finish dispute and the move to touchpad timing). ↩ ↩² ↩³
Rome Organising Committee, Official Report of the 1960 Olympic Games, v.1 (LA84 Foundation; thirty timekeepers, three buttons per lane, hand timing alongside). ↩
Tokyo Organising Committee, Official Report of the 1964 Olympic Games, v.1, p. 177 (LA84 Foundation; touch board adopted as the official timer). ↩
Munich Organising Committee, Official Report of the 1972 Olympic Games, v.1 (LA84 Foundation; contact mats first used in Tokyo 1964, electronic rather than pneumatic). ↩
Colorado Time Systems, AquaGrip Touchpads datasheet. ↩ ↩² ↩³
Wikipedia, Aquatic timing system. ↩ ↩² ↩³ ↩⁴
Google Patents, JPH08257196A, 競泳用タッチ板 (Seiko Instruments; inventor Michio Tomita; a panel switch under a fine mesh; filed 1995, lapsed 2012). ↩
Google Patents, EP0557888B1, Timing system for swimming race (Seiko Instruments; touchpad sensing that distinguishes a swimmer’s touch from accidental water contact; priority 1992). ↩
Seiko Time Creation, タッチプレート（AQUAタイプ） (Japanese product page; panel material and dimensions, with no sensing principle given). ↩ ↩² ↩³
World Aquatics, Facilities Rules 2021–2025, FR 2.3 Automatic Officiating Equipment for Swimming (touch panels: FR 2.3.4). ↩ ↩²
Colorado Time Systems, AquaGrip Touchpads. ↩
Colorado Time Systems, Standard Touchpads. ↩
Colorado Time Systems, Standard and AquaGrip Touchpads User Guide (F147). ↩
Colorado Time Systems, Making Time Count: High Impact Visual Display Systems (2008 catalogue), Training Tools section. ↩
Seiko Time Creation, タッチプレート（1,900mmフルフレームタイプ） (Japan Swimming Federation Class A, with no World Aquatics line). ↩

Last updated September 25, 2026.