Gc2 vs Trackman

[Willymakit]

So on the weekend had a titilest demo day at our local range. Decided to try some drivers with different shafts that were there. Came across this shaft that was called a speedster I believe with the 915d2 head. They had a trackman set up so I got set up to hit a few shots. Now I'm use to what my gc2 numbers are with a driver and found the results with the trackman much different. Now my question is. Can you add boost to the trackman also. I was almost calling him a liar because I didn't believe the numbers. And I feel I know my numbers pretty good.

So here are my numbers for gc2 and trackman

Gc2 with prov1 golf balls

Distance. 280-300 on carry
Spin rate. 2200-2500
Ball speed. 162-168
Launch angle 11-13

On the trackman with yellow range balls

Distance 295-320 with no roll. 340 with roll
Spin rate 1700-2100
Ball speed 169-174 mph
Launch angle. 11-13
Swing speed 113-117mph

Now I'm just questioning why trackman was so much higher.

Since I didn't believe the rep I asked if I could use my driver and was getting the same results with what titilest driver results were.

When I got home later that evening I used the gc2 and those were the numbers I posted above So I'm questioning why are the two best launch monitors on the market can be that far out.

[mthunt]

Trackman tracks the ball until it lands so if you were at a range I'd say it's correct. If it's down hill or down wind, trackman will show longer than GC2 due to GC2 not being affected by wind or other variables such as altitude and hight. Radar can also add boost with altitude settings but if it's tracking until it lands, it wouldn't matter. The PGA average is 165 ball speed and 269 carry so trackman looks pretty long.

[mthunt]

did you buy the driver? lol

[SFR]

The big thing is that the GC2 is based as if you were hitting at sea level. We are at 2116 feet. That will account for some of the carry difference. We know certain golf balls will carry more due to less spin but you would think the ball speed should be the same if you used the same ball on the GC2. 6 mph is 15 - 20 yards extra in carry.

Last year I was hitting on the range with the GC2 and had a spotter watching the carry. When the GC2 was showing in the 245 - 250 carry range, the real ball was going 265. You hit the ball a lot harder than I do.

[FaultyClubs]

Swinging indoors versus outdoors? There's only a 3-4% difference in ball speed.

[CBearsSB]

Does a specific brand and type of golf ball render more accurate data on GC2 versus other balls?

[mthunt]

I've run my GC2 and a Trackman 3 side by side. The numbers were really really close.

[Dax]

I agree with the swinging indoors vs out comment. Also, the spin rate is different as well which would result in additional yards.

In terms of rigging the TM comment, while I have never tried this one could possible set the unit for indoors while you are hitting outside, so that the TM only captures 30 feet of flight and then set the altitude for something different. However, as noted I've never tried this.

[Willymakit]

Okay it looks like my question still hadn't been answered. The question was. Can you add boost to trackman. I know with gc2 I have a slider that goes from 1.0 to 2.0. But it's just not playable.

To answer some of the other questions on here.

Swinging outdoors vs indoors doesn't affect me. I have lots of room and been playing indoors for a good 4 years. What I show indoors va outdoors with gc2 are very accurate.

No i didn't buy the driver. Lol. My driver that I have now had the same results. So why pay 600 Canadian.

Does the trackman actually track the ball until it lands or does it track to a certain distance like say 10feet and then estimate the rest like gc2 does. Reason why I ask is because when I was using trackman The stats would come up before the ball landed.

Now another reason why i was questioning the trackman results is. Aren't range balls have like a 70 percent rating so they don't go has far. And also our range runs out at roughly 280 yards and I could land them to the fence but trackman was saying 290 no carry. Another thing I read some where that practise balls create more spin rate but with trackman I had lower spin rate.


The reason why I'm asking all these questions is because I want to be more familiar with what trackman can do regards to boosting distance. Because next month he's coming back for another demo day and want to be armed with information so when I go again I can check out his settings.

It just felt like he thought he was trying to get one by us by thinking how far we can hit so he can boost sales. He did bring up the comment I told him about the boost option and he said in not golf town then quickly said but I don't do that which makes me suspect something was not right. There were a couple other good golfers out there also that felt it was longer then what there ball does

[Dax]

I think I kind of hinted at something they could have done and your additional info leads me to believe that this may be the case. Perhaps the unit was set to read the ball using indoor mode such that it would only read say the first 30 feet of distance. If this were the case, then I would check and see what altitude the unit was set at and what temperature setting was used as well.

As a final note, TM has a feature that will compute the shot to what one would see when using a premium ball. All you have to do is let it know what type of ball is being used. Thus, you may also want to check that the correct type of range ball is selected.

Also, on Another front they could have been using the normalize feature to take away the effect of wind etc. And I believe if this was used the. The unit may only measure the ball for a certain distance. Again the altitude and temp setting should be checked and also ensure the right kind of range ball was selected.

Hope this helps

[goatbarn]

I believe normalizing function just takes the first 30 yards (maybe 40 yards) of data/ball flight and calculates the rest.

Only way I know of jacking them up is with normalize or long indoor on and set temp/elevation high.

[sorensen]

check it here and you will understand what he has done http://blog.trackmangolf.com/categor...deos/webinars/

[LEO MODE]

Okay it looks like my question still hadn't been answered. The question was. Can you add boost to trackman. I know with gc2 I have a slider that goes from 1.0 to 2.0. But it's just not playable.

To answer some of the other questions on here.

Swinging outdoors vs indoors doesn't affect me. I have lots of room and been playing indoors for a good 4 years. What I show indoors va outdoors with gc2 are very accurate.

No i didn't buy the driver. Lol. My driver that I have now had the same results. So why pay 600 Canadian.

Does the trackman actually track the ball until it lands or does it track to a certain distance like say 10feet and then estimate the rest like gc2 does. Reason why I ask is because when I was using trackman The stats would come up before the ball landed.

Now another reason why i was questioning the trackman results is. Aren't range balls have like a 70 percent rating so they don't go has far. And also our range runs out at roughly 280 yards and I could land them to the fence but trackman was saying 290 no carry. Another thing I read some where that practise balls create more spin rate but with trackman I had lower spin rate.


The reason why I'm asking all these questions is because I want to be more familiar with what trackman can do regards to boosting distance. Because next month he's coming back for another demo day and want to be armed with information so when I go again I can check out his settings.

It just felt like he thought he was trying to get one by us by thinking how far we can hit so he can boost sales. He did bring up the comment I told him about the boost option and he said in not golf town then quickly said but I don't do that which makes me suspect something was not right. There were a couple other good golfers out there also that felt it was longer then what there ball does

A little late to answer your question but here they go:

1) There is no boost, but a normalize feature. Since you used a range ball, normalize (always premium ball) will probably boost the stats up a little more. Like Dax said above though, maybe the normalize feature was already turned on. Then the data should be more similar to GC2.
2) In outdoor, Trackman tracks the ball until the apex of the ball then measures the numbers. I'm thinking the total yards and stuff would then be measured once the ball landed. That's why you would see some numbers first before other numbers come out again after a few seconds.

[Snaphook]

In my experience the normalize function boosts ballspeed and therefore gives you ridicolous smash etc. And if you were using range balls you can't really compare spin numbers either.
Every year when the demo reps start coming we see this phenomenon. (Most of the better players are just shaking their heads) Like you clearly see the ball land in front of the 250 marker but TM is saying 290 carry etc..
Maybe next time bring 5 balls and ask the rep to turn off normalize and set it to outdoor mode.
I have compared TM and GC2 outdoors with real balls and the numbers are extremely close.

[Ronsc1985]

These comparison posts always end up the same way.

This isn't complicated. Bring your current clubs for comparison. If the new ones do better fine , if not move on.

Elementary experimental procedure requires isolation and quantification of the variables. When you go from indoors to outdoors thereby changing the ambient conditions, using a different club and ball, comparisons are meaningless and expecting the same or close to the same results is unrealistic.

[mthunt]

I've also compared my foresight to Trackman and got very similar results.

I went to my clubs demo day on the weekend and I was testing the Epic with my GC2. I told the guy the spin was too high on the non sub zero and the guy said "your launch monitor isn't very accurate." I said why? He said because Trackman is more money and see them on tour. I didn't bother arguing. I hit on his Trackman and got the exact same numbers then he said let's try the sub zero.