Ping i3 O-Size vs Ping G2
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | i3 O-Size loft | G2 loft | i3 O-Size lie | G2 lie | i3 O-Size length | G2 length |
|---|---|---|---|---|---|---|
| 3 | 20.5 | 21 | 59.5 | 59.32 | 38.75 | 38.75 |
| 4 | 24 | 23.8 | 60 | 60.02 | 38.25 | 38.25 |
| 5 | 27 | 27 | 61 | 60.75 | 37.75 | 37.75 |
| 6 | 30.5 | 30.5 | 61.5 | 61.5 | 37.25 | 37.25 |
| 7 | 34.5 | 34.3 | 62.5 | 62.28 | 36.75 | 36.75 |
| 8 | 38.5 | 38.3 | 63 | 63.1 | 36.25 | 36.25 |
| 9 | 42.5 | 42.5 | 64 | 63.95 | 35.75 | 35.75 |
| PW | 47 | 47 | 64.5 | 64.38 | 35.5 | 35.5 |
| UW | 52 | 50.5 | 64.5 | 64.38 | 35.25 | 35.5 |
| SW | 56 | 54 | 64.5 | 64.7 | 35.25 | 35 |
| LW | 60 | 58 | 64.5 | 65.11 | 35 | 35 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- i3 O-Size
- G2
What the differences mean
At the 7-iron, the i3 O-Size is 34.5° and the G2 is 34.3°, a 0.2° gap. Each degree of loft is worth roughly 3 to 4 yards of carry at the same swing speed, so the G2 should carry a yard or so further with that club, on a slightly lower, shallower flight than the i3 O-Size. Across the 11 clubs both sets share, the G2 averages 0.5° stronger, with the largest gap at the SW (56° vs 54°). Beyond loft, the G2 7-iron sits 0.2° flatter (62.5° vs 62.28°), which nudges start direction slightly right for a right-hander.
Both are game improvement irons, built for roughly 10 to 25 handicaps. Perimeter-weighted cavity backs with wider soles, more offset and stronger lofts, aimed at mid handicaps. Because they target the same golfer, the decision comes down to the specific loft, feel and shaping differences rather than who the sets are made for.
Both heads are listed as investment cast. With the build method this similar, differences in feel come down to head size, sole width, topline and offset rather than how the heads are made.
There are 4 years between these sets (1999 and 2003), more than one design generation. Over that time irons moved toward stronger lofts, thinner and faster faces, hollow and multi-material heads and wider use of tungsten, so the newer set is not simply a better version of the older one: it may launch and spin quite differently. Here the 7-iron loft moved from 34.5° to 34.3°.
Which should you choose?
The G2 is the stronger-lofted set — up to 2° stronger than the i3 O-Size on matching clubs. Expect longer carry per numbered iron but a flatter descent angle; gapping at the wedge end is where that shows up.
Both charts are reproduced in full on their own pages: Ping i3 O-Size specs and Ping G2 specs.
Frequently asked questions
Is the Ping i3 O-Size stronger lofted than the G2?
No. The G2 is the stronger-lofted set: its 7-iron is 34.3° against 34.5° for the Ping i3 O-Size, 0.2° stronger and worth a yard or so of extra carry.
What is the loft difference between the Ping i3 O-Size and G2?
At the 7-iron the difference is 0.2° (34.5° vs 34.3°). The largest gap on a shared club is 2° at the SW, and 7 of the 11 shared clubs differ.
Are the Ping i3 O-Size and G2 aimed at the same golfer?
Yes. Both are game improvement irons, built for roughly 10 to 25 handicaps. Choose on feel, looks and gapping, ideally after hitting both.
Do the Ping i3 O-Size and G2 have the same lie and length?
Not exactly. At the 7-iron the Ping i3 O-Size is 62.5° lie and 36.75 inches, the G2 62.28° and 36.75 inches. Both can be bent or built to your own fit.
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