Compare Disc Golf Discs

Pick two or more discs and see exactly how they differ - flight, feel, distance, and price, side by side.

Build your comparison2 of 4 discs · ready
Millennium Golf DiscsSentinel MFMidrange5/4/0/4
InnovaRocX3Midrange5/4/0/3.5

Sentinel MF vs RocX3

How Sentinel MF and RocX3 compare on flight numbers, feel, distance, and price.

Key differences

FadeSentinel MF 4 vs RocX3 3.5Diameter21.7 vs 21.8 cm (-0.1)Height2.1 vs 2 cm (+0.1)PlasticsRocX3 9 vs Sentinel MF 0

Flight Paths

Overhead view · right-hand backhand

0100200300400500Distance (ft)Fade / Turn
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Tap a disc to show or hide its path. Estimated from flight numbers.

Millennium Golf DiscsSentinel MFMidrangeOut of Production
InnovaRocX3Midrange
Flight Numbers
SpeedRim & velocity
Sentinel MF
5
RocX3
5
GlideStays aloft
Sentinel MF
4
RocX3
4
TurnHigh-speed bend
Sentinel MF
0
RocX3
0
FadeLow-speed hook
Sentinel MF
4
RocX3
3.5
Specifications
Spec
Millennium Golf Discs
Sentinel MF
Innova
RocX3
Flight rating
5/4/0/4
5/4/0/3.5
Stability
Very overstable (+4)
Very overstable (+3.5)
Beginner score
38/100
40/100
Est. carry
282 ft
282 ft
Type
Midrange
Midrange
Recommended skill
Everyone
Advanced
Diameter
21.7 cm
21.8 cm
Height
2.1 cm
2 cm
Rim depth
1.2 cm
1.4 cm
Rim width
1.3 cm
1.4 cm
Max weight
180.1 g
180 g
Bead
Beaded
Beaded
PDGA Approved
Yes
Yes
On Amazon
Not on Amazon
Not on Amazon
Production status
Out of production
In production
Price from
Not listed
$11.99
The Verdict

Sentinel MF or RocX3?

Main difference: fade (Sentinel MF 4 vs RocX3 3.5). The Sentinel MF fades harder at the end for wind and sharp finishes; the RocX3 finishes straighter.

Sentinel MF: Very overstableRocX3: Very overstable
Where to buy
Sentinel MF
See retailer
Out of production
Buy atAffiliate link
RocX3
$11.99
Buy atAffiliate link

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FAQ

Is the Sentinel MF or RocX3 more overstable?

The Sentinel MF is more overstable (stability +4 vs +3.5). It resists turning and fades harder.

Should a beginner pick the Sentinel MF or RocX3?

A beginner is better off with the RocX3 (beginner score 40/100 vs 38/100) - lower speed and more turn make it easier to control.

What is the difference between the Sentinel MF and RocX3?

Main difference: fade (Sentinel MF 4 vs RocX3 3.5). The Sentinel MF fades harder at the end for wind and sharp finishes; the RocX3 finishes straighter.

View each disc

Millennium Golf Discs Sentinel MF vs Innova RocX3: Flight Numbers