Mizuno MP-33 vs Mizuno MP-37
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | MP-33 loft | MP-37 loft | MP-33 lie | MP-37 lie | MP-33 length | MP-37 length |
|---|---|---|---|---|---|---|
| 1 | 16 | — | 57 | — | 39.75 | — |
| 2 | 19 | 18 | 57.5 | 57.5 | 39.25 | 39.25 |
| 3 | 22 | 21 | 58 | 58 | 38.75 | 38.75 |
| 4 | 25 | 24 | 58.5 | 58.5 | 38.25 | 38.25 |
| 5 | 28 | 27 | 59 | 59 | 37.75 | 37.75 |
| 6 | 32 | 31 | 60 | 60 | 37.25 | 37.25 |
| 7 | 36 | 35 | 61 | 61 | 36.75 | 36.75 |
| 8 | 40 | 39 | 62 | 62 | 36.25 | 36.25 |
| 9 | 44 | 43 | 62.5 | 62.5 | 35.75 | 35.75 |
| PW | 48 | 47 | 63 | 63 | 35.25 | 35.25 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- MP-33
- MP-37
What the differences mean
At the 7-iron, the MP-33 is 36° and the MP-37 is 35°, a 1° gap. Each degree of loft is worth roughly 3 to 4 yards of carry at the same swing speed, so the MP-37 should carry roughly 3 to 4 yards further with that club, on a slightly lower, shallower flight than the MP-33. Across the 9 clubs both sets share, the MP-37 averages 1° stronger, with the largest gap at the 2-iron (19° vs 18°). The pitching wedges are 48° and 47°; the stronger one leaves a 3° jump to a 50° gap wedge, which matters when planning wedge gapping.
The sets are built differently: the MP-33 runs 1-iron to PW (10 clubs), the MP-37 2-iron to PW (9 clubs).
Both are blade irons, built for low single-digit handicaps who strike the ball consistently. Compact muscleback irons with minimal offset, thin toplines and the smallest sweet spot — built for shot-shaping over forgiveness. 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 forged. 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.
The MP-37 came out 2 years after the MP-33, but it is a different line rather than a direct replacement, so the two were designed for different golfers as well as different seasons.
Which should you choose?
The MP-37 is the stronger-lofted set — up to 1° stronger than the MP-33 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: Mizuno MP-33 specs and Mizuno MP-37 specs.
Frequently asked questions
Is the Mizuno MP-33 stronger lofted than the MP-37?
No. The MP-37 is the stronger-lofted set: its 7-iron is 35° against 36° for the Mizuno MP-33, 1° stronger and worth roughly 3 to 4 yards of extra carry.
What is the loft difference between the Mizuno MP-33 and MP-37?
At the 7-iron the difference is 1° (36° vs 35°). The largest gap on a shared club is 1° at the 2-iron, and all 9 shared clubs differ.
Are the Mizuno MP-33 and MP-37 aimed at the same golfer?
Yes. Both are blade irons, built for low single-digit handicaps who strike the ball consistently. Choose on feel, looks and gapping, ideally after hitting both.
Do the Mizuno MP-33 and MP-37 have the same lie and length?
At the 7-iron, yes: both are 61° lie and 36.75 inches long.
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