GC Quad Data – What Data does Foresight GC Quad Measure?

The GCQuad’s four cameras measure six ball numbers and, with club markers, eight club numbers; the rest of what the software shows is modeled from those or computed over groups of shots. Foresight’s words are “measure – not calculate”, but its own blog says carry comes from the flight model, so this guide files carry as modeled. The 2022 original’s 25-item list is recast as the measured set, the modeled set and the software’s statistics, with the QuadMAX’s three extra numbers and the money beside them.

In a Nutshell

The GCQuad’s four cameras measure six ball numbers, launch angle, side angle, ball speed, total spin, spin axis and carry as Foresight lists them, plus eight club numbers with markers; run, total, curve and the shot-group statistics are modeled, and Foresight’s own blog says carry comes from the flight model too.

👉 Bottom line: trust the ball and club numbers, treat carry as the flight model’s, and read the price with the club-data and putting SKUs beside it.

In this guide: In a Nutshell · How this has changed · Measured or modeled · Foresight’s own test · Club data and the money · Putting analysis · The family · Software and licensing · Price and the used market · FAQ · Summary

• Measured: launch angle, side angle, ball speed, total spin, spin axis and, with markers, eight club numbers.
• The QuadMAX adds: apex, descent angle and offline as on-device numbers.
• Modeled: carry, run, total, and the dispersion statistics.
• The money: club data standard on new units (the $4,000 retrofit for older Quads is no longer on Foresight’s store); putting a $2,500 add-on on the Quad, standard on the MAX.
• Accuracy: Foresight’s own robot test; no published tolerance, no independent test.

The author’s 2022 opening still stands:

The Foresight GC Quad is probably the best portable camera-based launch monitor available.

Jargon, once:

• Measured — read from the images of the ball or club at impact.
• Modeled — computed by the flight model from the measured numbers.
• Markers — reflective dots on the club face that let the cameras read the club.
• Closure rate — how fast the face is closing through impact.
• Smash factor — ball speed divided by club head speed.
• Quadrascopic — Foresight’s word for four cameras.

How This Has Changed Since 2022

• Checked 2026-09-11: the putting tier is 14 metrics now; club data ships standard in the $15,999 GCQuad, with a $4,000 retrofit for older units then listed; by 21 October 2026 the GCQuad was still $15,999 and the retrofit’s store page redirected to the GCQuad.
• August 2026: the GC Hawk discontinued, notice dated August 10; the Falcon is the successor.
• July 2026: a Foresight email on licensing and subscriptions with no specifics, partly walked back by the first commenter to speculate on it; Foresight+ has since launched with published plans (Silver $199, Gold $599 a year), and Foresight says existing FSX licenses keep working.
• September 2026: “no subscription” is the rivals’ pitch; units are region-locked outside North America, one owner’s dealbreaker.
• 2024–2025: the QuadMAX: apex, descent angle and offline on device, a touchscreen, a lighter body.
• Corrected: the 25-item list recast as measured, modeled and computed.
• Used prices, July to September 2026: a QuadMAX asking $11,500; a GCQuad bundle relisted at $9,500.

Measured or Modeled: The Master Table

Foresight’s product page says its launch monitors “measure – not calculate – club head data based on the club’s face plane”, and its 2025 blog says “we measure what matters most – the moment of impact.” The same blog says the flight model derives “downrange outcomes like carry distance, peak height and descent angle”, which is why carry sits in the modeled rows below even though the product page files it under Ball Data. The base GCQuad models descent angle from its flight model; the QuadMAX reads it as an on-device parameter. The original’s 25 and the site’s 33 are two counts of different things, one unit’s list and every launch monitor’s, reconciled in the data guide.

Launch Monitor Data – 33 Parameters Explained

The original’s own aside on attack angle and descent angle is the one confusion the table settles:

I know, this one can be confusing!

Attack angle is a club number, the vertical angle of the club head at impact; descent angle is a ball number, the angle the ball comes down at.

What Foresight’s Own Test Shows

The accuracy evidence is Foresight’s own. A Golf Laboratories robot hit one 10.5° driver, ten shots per strike location. Foresight reports the GCQuad’s club-speed standard deviation at 0.2 mph against 0.8 for a TrackMan 4 and 3.9 for an EYE MINI, and its attack-angle range at 0.3° against 0.6°. The spin-rate figure from the same test, 82 rpm against about 175, is republished on Foresight’s own blog. Foresight publishes no tolerance figure, and no independent lab-grade test of the Quad exists on file. Owners treat it as the benchmark the other units are tested against (6 reports from 6 owners):

“I have accepted that the Quad and Trackman4 are accurate.” (u/ProletariatElite, 2026-06-14)

Carry stays modeled and normalized even here:

“even a Quad can’t measure weather that isn’t happening, so the carry is for whatever temp and altitude you’ve got dialed in.” (u/cbolitho, 2026-07-06)

Club Data, the Markers and the Money

Any ball works with no marking; the club needs markers. One marker on the face gives club head speed, smash factor, attack angle and path; four add face angle, loft and lie, per the manual. The asterisk on “no subscription” is real: club data now ships standard on new GCQuads and QuadMAXes with no recurring fee, and older Quads that shipped without clubhead measurement took a $4,000 one-time add-on, which Foresight’s store no longer lists (its page now redirects to the GCQuad, 21 October 2026), so ask Foresight before buying a used unit without it. The GC3 now ships with Clubhead Measurement included, and the $1,750 unlock the site’s GC3 guide quoted for ball-only units is not on Foresight’s store; the Launch Pro gates club data behind a Foresight+ Silver or Gold plan. For third-party simulators, GSPro costs $250 a year, and Foresight+ says GSPro needs its Gold plan ($599 a year); GSPro’s own Foresight page still lists FSX 2020 or FSX Play as the GCQuad’s requirement, so ask the seller which applies to your unit and license. The owner problem is not the price of the numbers but reading them (9 reports from 9 owners).

Putting Analysis

Essential Putting Analysis is a $2,500 one-time add-on on the GCQuad, confirmed on Foresight’s page on 21 October 2026, and the metric set has changed: Foresight now lists 14 measured performance metrics, adding skid distance, time to full roll and roll spin, and dropping total spin, back spin, side spin, face to target and closure rate from the original’s list. The QuadMAX ships with putting included, and the $2,500 SKU on its page prices units that did not ship with it. The GC3 has no putting analysis and the Launch Pro none either. Resale listings show the three tiers, and no owner in the summer’s threads describes using the putting tier:

“Selling my QuadMax that includes ball, club and putting analysis.” (u/Junkcanoe, 2026-07-28)

Golf Simulator Putting Greens – Add a Putting Green to your Simulator Floor

GCQuad, QuadMAX and the Rest of the Family

The QuadMAX changes the hardware more than the data: a touchscreen, MyTiles for arranging the on-device display, no-ball speed training. A 12,000 mAh battery for 7–9 hours against the Quad’s 10,400 mAh and 6–8, and a body 15 % lighter at 6.3 lb against 7.5. Both units let the owner choose which parameters the unit’s own screen shows. Placement is the same 22 in from the ball, with a 14 × 14 in strike zone with club tracking and 18 × 14 ball-only, covered in the space guide. Owners who moved up from a SkyTrak to a GC3 report the jump as worth it (13 reports from 13 owners); the MAX draws upgrade skepticism from Quad owners who see a refresh rather than a new unit.

Foresight GC Quad Space Requirements – Length, Width & Height

Foresight GC3 Data – What Data does the GC3 Measure?

Bushnell Launch Pro Data – What Data does Bushnell Launch Pro Measure?

Uneekor EYE XO Vs Foresight GC Quad – 18 Key Comparisons

Software, Licensing and What to Watch

Units used to ship with FSX Play, FSX 2020, FSX Pro, Foresight Fairgrounds and 25 courses, FSX Pro free with a valid FSX 2020 license; a new GCQuad now ships with a 30-day trial of Foresight+ Gold with Course Pass Pro instead, and Foresight says existing FSX licenses keep working (Foresight’s pages, 21 October 2026). GSPro, E6 and Creative Golf run through the FSX layer; Awesome Golf sits behind the Launch Pro’s Gold tier. Owners praise the GSPro pairing (5 reports from 5 owners). The July 2026 email came with no specifics; its result, Foresight+, is now live, with Silver at $199 and Gold at $599 a year:

“There are no real specifics but I thought I would pass it on” (u/GrandSupermarket4024, 2026-07-25)

Used bundles carry GSPro to a date, and the TGC connector remains a source of friction. Trackman keeps the software edge in owners’ eyes, and units are region-locked:

“FSX Pro + FSX Play + FSX 2020 + GSPro until October 2026” (u/Googled_This, 2026-08-01)

“Foresight/Bushnell – need PC and units are region locked (I will likely move to Europe in a couple of years)” (u/-Kackerlacka-, 2026-09-02)

Launch Monitor & Golf Simulation Software – Compatibility Guide for 2026

Commercial Golf Simulators – How to Grow a Golf Simulator Business

Price and the Used Market

The GCQuad lists at $15,999 and the QuadMAX at $19,999 on Foresight’s store (21 October 2026), with retailer promos of $11,999 and $14,999 in July and used Quads moving slowly at $8,500–10,500. The warranty is two years, with a one-year extension at $995 and two years at $2,250 on Foresight’s store; UpNext junior pricing is a real discount (4 reports from 4 owners).

The price is the barrier owners name first (5 reports from 5 owners), and a GC2 with no subscription is one answer to it:

“a good working GC2 is pretty nice because no subscriptions.” (u/twylight777, 2026-09-02)

GCQuad Data FAQ

What data does the Foresight GCQuad measure?

Six ball numbers as Foresight lists them, launch angle, side angle, ball speed, total spin, spin axis and carry, plus eight club numbers with markers; the rest is modeled.

Does the GCQuad measure carry or model it?

Models it: Foresight’s blog says the flight model derives carry, peak height and descent angle, though the product page lists carry under Ball Data.

Does GCQuad club data need a subscription?

No. It ships standard on new units with no recurring fee; the $4,000 retrofit for older units is no longer on Foresight’s store, so ask Foresight.

How many club markers does the GCQuad need?

One for speed, smash factor, attack angle and path; four add face angle, loft and lie.

Does the GCQuad measure putting?

With the $2,500 Essential Putting Analysis add-on, now 14 metrics; the QuadMAX includes it, the GC3 and Launch Pro have none.

What does the QuadMAX add over the GCQuad?

Apex, descent angle and offline on device, a touchscreen, a bigger battery, a lighter body; the same club data.

How accurate is the GCQuad?

Foresight’s robot test puts club-speed deviation at 0.2 mph, and owners treat it as the benchmark; no independent test or tolerance is published.

Summary

Four cameras measure six ball numbers and eight club numbers with markers; carry, run, total and the statistics are the software’s. Club data is standard now, putting is a $2,500 add-on on the Quad and standard on the MAX, and the accuracy evidence is the maker’s own robot test.

Related guides: Foresight GC Quad Space Requirements – Length, Width & Height · Foresight GC3 Data – What Data does the GC3 Measure? · Bushnell Launch Pro Data – What Data does Bushnell Launch Pro Measure? · Uneekor EYE XO Vs Foresight GC Quad – 18 Key Comparisons · Launch Monitor Data – 33 Parameters Explained · How do Launch Monitors Work? – Radar vs Camera Systems · What is Smash Factor? – Launch Monitor Data 101 · Launch Monitor & Golf Simulation Software – Compatibility Guide for 2026 · Golf Simulator Putting Greens – Add a Putting Green to your Simulator Floor · What Data does the Garmin R50 Measure? – Garmin R50 Data In-Depth · Uneekor Eye Mini Data -> Ball & Club Data + Measured & Calculated

Check current prices: Foresight GCQuad · Foresight QuadMAX