Complete Reference Guide

Understand Every Number
On Your Disc

Four numbers. Infinite flight paths. Once you understand Speed, Glide, Turn, and Fade you will never pick the wrong disc again.

9
Speed
1–14
5
Glide
1–7
-1
Turn
+1 to -5
2
Fade
0–5
Example: Innova Thunderbird — a reliable overstable fairway driver
The Numbers Throw Styles Stability Disc Examples Pro Tips
Step 1 — The Basics
The Four Flight Numbers

Every disc from every manufacturer uses the same four-number system. They appear stamped on the disc in the order: Speed · Glide · Turn · Fade.

S

Speed

Range: 1 to 14

How fast the disc needs to be thrown to fly as rated. Higher speed discs require more arm speed and power. Beginners should stick to Speed 6–9. Distance drivers are Speed 10+.

Low Speed (1–5) · RHBH
Floats gently. Very forgiving of off-angle releases. Minimal distance, maximum control. Great for beginners.
High Speed (12–14) · RHBH
Requires strong snap and arm speed. Under-powered throws won't reach potential and will fade hard early.
Low Speed · RHFH
Ideal for controlled forehand approaches. Slow discs behave predictably for placement shots near the basket.
High Speed · RHFH
High-speed forehand can generate massive distance but demands excellent form to avoid unwanted turn.
1–3: Putters  ·  4–6: Mid-Ranges  ·  7–9: Fairway Drivers  ·  10–14: Distance Drivers
G

Glide

Range: 1 to 7

The disc's ability to maintain loft and stay airborne. Higher glide = more air time = more distance potential. Low glide = quicker descent for windy conditions and precise placement.

High Glide (6–7) · RHBH
Stays in the air longer, maximizing distance. Great for tailwind shots but harder to control in crosswinds.
Low Glide (1–3) · RHBH
Drops faster with a shorter flight window. Ideal for headwind shots or precise approach placement.
High Glide · LHBH
Creates mirror-image long sweeping flights. Great for distance with proper left-handed form.
Low Glide · LHBH
Quick-dropping shots useful for navigating wooded courses where long hang time leads to trouble.
Headwind tip: Drop to Glide 3–4.  ·  Tailwind tip: High glide discs shine.
T

Turn

Range: +1 to -5

The tendency to bank at the beginning of flight when the disc is moving fastest. For RHBH: negative numbers turn right, positive numbers resist turning (overstable). Everything mirrors for other throw styles.

High Turn (-3 to -5) · RHBH
Disc turns RIGHT early. Understable. Great for hyzer flips, rollers, and beginner distance with lower arm speed.
No Turn (0 to +1) · RHBH
Disc resists turning. Overstable. Reliable in headwinds. Consistent fades for experienced players.
High Turn · RHFH
On RHFH, turn goes LEFT. High turn discs fight toward a straighter finish for right-handed forehand players.
High Turn · LHBH
For left-handed backhand, turn goes LEFT. High turn understable discs turn left for LHBH throwers.
Key: Turn direction is always relative to your throw style. The number stays the same — the direction mirrors.
F

Fade

Range: 0 to 5

How hard the disc hooks at the end of its flight as it slows down. For RHBH: fade goes left. Higher fade = stronger final hook. 0 = lands nearly flat. 5 = aggressive hard hook at landing.

High Fade (4–5) · RHBH
Aggressive leftward hook at end of flight. Great for getting around left obstacles, skip shots, and headwind reliability.
Low Fade (0–1) · RHBH
Finishes very straight with minimal hook. Ideal for straight fairways, rollers, and hyzer-flip lines.
High Fade · RHFH
On RHFH throw, high fade pushes the disc RIGHT at finish. Useful for right-curving finish shots.
High Fade · LHBH
Disc finishes RIGHT for left-handed backhand players. High fade = hard right hook at end for LHBH.
Note: Fade 0 doesn't mean zero fade — it means minimal fade. All discs fade to some degree as they slow down.
Step 2 — Throw Styles
How Each Throw Style Changes Flight

Same disc, four completely different perspectives. The flight numbers don't change — but which direction "turn" and "fade" go depends entirely on how you throw.

The golden rule: RHBH and LHFH share the same disc spin direction (counter-clockwise from above), so their turn/fade directions are identical. RHFH and LHBH also share spin (clockwise from above) and are mirror images of each other.

RHBH

Right Hand Backhand

The most common throw. Disc releases from right side, spinning counter-clockwise from above.

  • Turn: Disc goes RIGHT early
  • Fade: Disc goes LEFT at end
  • Neutral flight: Straight, slight left finish
  • Best for: Distance, straight lines, left-to-right shaping

RHFH

Right Hand Forehand (Sidearm)

Disc spins clockwise from above — everything mirrors RHBH.

  • Turn: Disc goes LEFT early
  • Fade: Disc goes RIGHT at end
  • Neutral flight: Straight, slight right finish
  • Best for: Right-to-left shaping, sidearm distance

LHBH

Left Hand Backhand

Disc spins clockwise from above — mirror image of RHBH.

  • Turn: Disc goes LEFT early
  • Fade: Disc goes RIGHT at end
  • Neutral flight: Straight, slight right finish
  • Best for: Distance, right-to-left shaping for lefties

LHFH

Left Hand Forehand (Sidearm)

Disc spins counter-clockwise from above — same as RHBH.

  • Turn: Disc goes RIGHT early
  • Fade: Disc goes LEFT at end
  • Neutral flight: Straight, slight left finish
  • Best for: Left-to-right shaping for lefties
Step 3 — Stability
Understanding Disc Stability

Stability describes how a disc behaves overall. It's a combination of turn and fade and is the single most important concept for choosing the right disc.

Understable
76-31
Turns in the direction of spin early in flight. For RHBH this means right. Easier to throw for beginners. Great for hyzer flips, rollers, tailwinds, and players with lower arm speeds.
Neutral / Stable
54-11
Flies mostly straight with minimal turn and a gentle fade. The most versatile discs on the course. Consistent and predictable for players of all skill levels in calm conditions.
Overstable
9304
Resists turn and fades hard at the end. For RHBH this means a hard left finish. Best for headwinds, skip shots, hyzer lines, and experienced players needing reliable left-finishing shots.
Wind rule: In headwinds, go more overstable than normal — the wind acts like extra speed and will flip understable discs. In tailwinds, you can use more understable discs than usual.
Step 4 — Real Disc Examples
Every Flight Number Variation

12 real discs covering every flight category. See exactly how each disc flies for all four throw styles.

Putters
Speed 1–3 · Used for short putts, approach shots, and controlled drives under 200ft. Most forgiving disc type.
Disc Brand Numbers RHBH Flight RHFH Flight LHBH Flight LHFH Flight
Innova Aviar Innova
2 3 0 1
Dead straight with a very slight left fade at the end. One of the most reliable putters ever made. Minimal fade makes it great for straight upshots and short drives. Straight with a gentle right fade at finish. Easy to control on forehand approaches. Very forgiving of off-angle releases. Straight with a slight right fade at end. Mirrors the RHBH experience perfectly. A great first putter for left-handed players. Straight with minimal left fade. Predictable and confidence-inspiring for left-handed forehand approach shots.
Dynamic Discs Judge Dynamic Discs
2 4 0 1
Straight with slightly more glide than the Aviar. Holds its line well on longer putts. Reliable left fade at finish keeps it honest. Very straight forehand putter. The extra glide helps on longer forehand approaches. Finishes right with minimal hook. Excellent straight-flying putter for lefties. Glides well and finishes with a predictable slight right fade. Great left-handed forehand putter. Straight flight with light left fade at the end. Easy to trust on the course.
Mid-Ranges
Speed 4–6 · Versatile discs for approach shots and controlled drives 150–300ft. Great for accuracy.
Disc Brand Numbers RHBH Flight RHFH Flight LHBH Flight LHFH Flight
Discraft Buzzz Discraft
5 4 -1 1
One of the straightest flights in disc golf. Slight right turn mid-flight then a gentle left fade. Incredibly reliable for fairway accuracy. Slight left turn early with a gentle right fade. Excellent forehand control disc. Arguably the best all-around midrange ever made. Slight left turn with a gentle right finish. Mirror of the RHBH — equally predictable and reliable for left-handed players. Slight right turn with a soft left fade. Trustworthy and straight. A go-to forehand midrange for lefties.
Innova Roc3 Innova
5 4 0 3
Overstable midrange — fights turn hard and finishes with a strong left fade. Excellent in headwinds and for left-curving approach shots. Strong right fade at the end. A reliable forehand midrange for players who need a consistent right-finishing shot shape. Strong right fade. Very overstable for left-handed players. Great for right-curving lines and headwind shots. Strong left fade at end. One of the most reliable overstable forehand midranges for left-handed players.
Fairway Drivers
Speed 7–9 · Bridge between midranges and distance drivers. Good for 250–400ft drives with more control.
Disc Brand Numbers RHBH Flight RHFH Flight LHBH Flight LHFH Flight
Latitude 64 Diamond Latitude 64
7 6 -3 1
Very understable — turns right significantly and holds it with almost no fade. Excellent for hyzer flips, rollers, and beginner distance. High glide keeps it in the air. Turns left hard on forehand. May flip over if thrown flat. Best used on a steep hyzer angle for controlled left-to-right shots. Turns left significantly and holds the line with minimal right fade. Great beginner distance disc for left-handed players. Turns right and holds it. Easy distance for new left-handed forehand throwers. Very forgiving.
Innova Leopard3 Innova
7 5 -2 1
Understable fairway — turns right noticeably then fades back left softly. Great hyzer-flip disc for moderate arm speeds. Workable for most skill levels. Turns left on forehand then fades gently right. Good for S-curve forehand lines. Can overflip if thrown too hard flat. Turns left with a gentle right finish. A go-to understable fairway for left-handed players looking for distance. Turns right then fades left softly. Versatile and easy to throw for left-handed forehand players.
Innova Thunderbird Innova
9 5 0 2
Overstable fairway driver. Flies very straight with no turn and a reliable moderate left fade at the end. Excellent in headwinds. Dead straight on forehand with a solid right fade at finish. One of the most reliable forehand fairway drivers available. Straight flight with a reliable right fade. A workhorse fairway driver for experienced left-handed backhand players. Straight with a moderate left fade. A dependable overstable forehand option for left-handed players.
MVP Catalyst MVP
9 5 -1 2
Clean straight flight with a gentle right arc mid-flight then a reliable moderate left fade. Versatile all-around driver for intermediate players. Gentle left arc with a moderate right fade at finish. Predictable and easy to read. Great forehand utility disc. Gentle left arc with reliable right fade. Great straight distance option for left-handed players. Gentle right arc with moderate left fade. Well-balanced and reliable for left-handed forehand distance shots.
Innova Firebird Innova
9 3 0 4
Extremely overstable. Flies straight then snaps hard left. Low glide drops fast. Perfect for headwinds, skip shots, and reliable hard-left lines. Flies straight then snaps hard right. Perfect for right-curving forehand finishes. A staple overstable forehand disc. Flies straight then snaps hard right. Excellent for right-finishing lines for left-handed backhand players. Snaps hard left at the end. Mirror of RHBH. A go-to overstable forehand disc for experienced left-handed players.
Prodigy F5 Prodigy
7 5 -3 0
Very understable — turns right significantly and stays there with almost no fade. Ideal for roller shots and hyzer-flip lines that need to stay right. May flip over easily on forehand. Best used on extreme hyzer angles. Good for straight forehand shots at lower power. Turns left hard and holds it with nearly no right fade. Great roller disc and easy distance for left-handed players. Turns right and holds it. A true understable disc for flex shots and rollers for left-handed forehand players.
Distance Drivers
Speed 10–14 · Maximum distance potential but requires significant arm speed. Not recommended for beginners.
Disc Brand Numbers RHBH Flight RHFH Flight LHBH Flight LHFH Flight
Innova Boss Innova
13 5 -1 3
Strong overstable distance driver. Wants to go left the whole flight with a powerful fade. Needs significant arm speed to reach rated distance. Headwind bomb for powerful throwers. Slightly left turn on forehand with a strong right fade. Reliable overstable distance for sidearm throwers with good arm speed. Slight left turn then hard right fade. Very overstable — will fight back right hard. Best for experienced LHBH players with fast arm speed. Turns right then fades left hard — mirrors RHBH. A distance bomb for experienced left-handed forehand throwers.
Discraft Nuke Discraft
13 5 -3 4
Big right turn early when thrown flat then a powerful left fade. On hyzer the turn and fade produce huge distance S-curves. Demands real arm speed. Big left turn mid-flight then a hard right fade. Distance bomb potential but demands excellent form to avoid over-turning. Big left turn then hard right fade. Understable at speed, overstable at finish. Best for high-power left-handed players. Big right turn then hard left fade. Mirrors RHBH — a true power disc for experienced left-handed forehand throwers.
Remember: RHBH and LHFH share the same spin direction so their turn/fade directions are the same. RHFH and LHBH also share spin and mirror each other. The key difference is which way is "your left" vs "your right" depending on your stance and throw style.
Step 5 — Going Deeper
Pro Tips for Using Flight Numbers

Knowing the numbers is one thing. Knowing how to apply them on the course is another.

💪
Match speed to your arm
If your max distance is 250ft, you need Speed 6–8 discs — not Speed 13 drivers. Throwing a disc faster than your arm can handle makes it behave more overstable than rated.
🌬️
Wind changes everything
A headwind acts like extra speed — fly more overstable than usual. A tailwind reduces effective speed — you can throw more understable discs. Never ignore wind direction when choosing a disc.
📐
Release angle matters as much as the disc
Throwing a neutral disc on hyzer (tilted down) makes it act overstable. Throwing on anhyzer (tilted up) makes it act understable. Master release angles to multiply what one disc can do.
🔄
Discs "season" over time
Plastic wears down with use. A brand new overstable disc will gradually become more neutral and eventually understable. This is called "beating in" a disc — and many pros intentionally do this.
🎯
Turn number is for max power
The turn number assumes the disc is thrown at its rated speed. Throw it slower and it acts more overstable. This is why understable discs can work as straight flyers for players with less arm speed.
📦
Build your bag by flight window
You don't need 20 discs. You need a putter, a straight midrange, a reliable fairway driver, and one distance driver you can control. Fill gaps with discs that have meaningfully different flight numbers.
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