Why choose Alphafly 4?Buy Alphafly 4 if
+0.8 Upper Comfort & Lockdown+0.8 Upper Comfort & Fit: More secure midfoot lockdown and step-in comfort.
Nike Alphafly 4 vs Puma Fast-R Nitro Elite 3
·Spec BreakdownNike · Race Super
Alphafly 4
88
Stack39mm
Weight208g
Drop8mm
Puma · Race Super
Fast-R Nitro Elite 3
88
Stack40mm
Weight170g
Drop8mm
Key Differences & Advantages
Why choose Fast-R Nitro Elite 3?Buy Fast-R Nitro Elite 3 if
+0.4 Traction & Grip+0.4 Traction & Grip: Higher-traction compound for wet roads and fast corners.
The Runner's Pick
Final Decision: Who Buys Which Model?
Side-by-side selection criteria grounded in verified mechanical specs
Nike
Alphafly 4
88
Choose the Alphafly 4 if:
Choose the Alphafly 4 if your priority is plush step-in collar padding and irritation-free lockdown powered by ZoomX LT with two forefoot Air Zoom units paired with a carbon plate (208g). It is the better match for runners targeting friction-free blister prevention across long endurance sessions over the Fast-R Nitro Elite 3's focus on high-mileage protection and low-impact recovery cruising.
8mm drop · 208g · $280Audit
Puma
Fast-R Nitro Elite 3
88
Choose the Fast-R Nitro Elite 3 if:
Choose the Fast-R Nitro Elite 3 if your priority is tenacious rubber bite across slick pavement and wet turns powered by NITRO ELITE nitrogen-infused PEBA foam paired with a carbon plate and a noticeably lighter weight (170g vs 208g). It is the better match for runners targeting all-weather grip and confident cornering on slick streets over the Alphafly 4's focus on friction-free blister prevention across long endurance sessions.
8mm drop · 170g · $300Audit
Dealbreaker Warnings · Who Should Skip These
Critical biomechanical trade-offs to avoid buying the wrong shoe
Nike Alphafly 4
Skip Alphafly 4 if your typical workout calls for a specialized racer rather than a durable daily trainer.
Puma Fast-R Nitro Elite 3
Skip Fast-R Nitro Elite 3 if your typical workout calls for a specialized racer rather than a durable daily trainer.
8-Axis Telemetry Radar
Dead even · 88 PTS
Alphafly88vsFast-R88
Tap any axis node to inspect runner consensus & reviews
📊 Inspect Granular Spec Breakdown & Fit Telemetry▼
Fit & Sizing Consensus
Real-world wear-test consensus across runner foot profiles
Alphafly 4
Fast-R Nitro Elite 3
Sizing LengthSizing differs
Runs Small
Alphafly54%
True to Size
Fast-R80%
Runs Large
Alphafly 4: Runs small — consider 0.5 size up(n=13)
Fast-R Nitro Elite 3: True to size(n=28)
Toe Box WidthMatch
Performance Tight
Standard
Alphafly57%Fast-R76%
Wide
Alphafly 4: Standard width(n=11)
Fast-R Nitro Elite 3: Standard width(n=24)
Arch SupportMatch
Flat / Low
Alphafly72%Fast-R70%
Neutral Stability
High Arch
Alphafly 4: Flat / low arch(n=9)
Fast-R Nitro Elite 3: Flat / low arch(n=19)
| RADAR AXIS | Alphafly 4 | Fast-R Nitro Elite 3 | Δ DELTA | COHORT RANK |
|---|---|---|---|---|
| Cushioning & Softness | 9.6 | 9.7 | −0.1 (Fast-R Nitro Elite 3 higher by NaN) | #5/24 |
| Energy Return & Bounce | 9.8 | 9.9 | −0.1 (Fast-R Nitro Elite 3 higher by NaN) | #5/24 |
| Weight Efficiency | 9.6 | 9.9 | −0.3 (Fast-R Nitro Elite 3 higher by NaN) | #5/24 |
| Stability & Support | 6.4 | 6.4 | 0.0 (dead even) | #5/24 |
| Traction & Grip | 7.4 | 7.8 | −0.4 (Fast-R Nitro Elite 3 higher by NaN) | #5/24 |
| Upper Comfort & Lockdown | 9.0 | 8.2 | +0.8 (Alphafly 4 higher by 0.8) | #5/24 |
| Breathability | 9.3 | 9.3 | 0.0 (dead even) | #5/24 |
| Durability | 4.8 | 4.8 | 0.0 (dead even) | #5/24 |
| Meta-Score | 88elite | 88elite | 0.0 | Calibrated |
The Record · Specification Telemetry
Cohort-relative percentiles and verified technical specs
Alphafly 4
Fast-R Nitro Elite 3
Weight (US Men's 9)Lighter than 96% of daily trainers
Alphafly 4208g
Fast-R Nitro Elite 3170g
›Puma Fast-R Nitro Elite 3 saves 38g per stride, noticeable after mile 6 of continuous running.
Heel Cushion StackMore underfoot foam than 58% of trainers
Alphafly 439.0mm
Fast-R Nitro Elite 340.0mm
›Puma Fast-R Nitro Elite 3 delivers 1.0mm more vibration isolation for long recovery efforts than Alphafly 4.
Heel-to-Toe DropΔ 0.0mm
Alphafly 48.0mm
Fast-R Nitro Elite 38.0mm
›Both shoes share an identical 8mm drop geometry for balanced biomechanical loading.
Midsole Foam & Energy ReturnHigher rebound than 97% of tested foams
ZoomX LT with two forefoot Air Zoom units9.8/10
NITRO ELITE nitrogen-infused PEBA foam9.9/10
›NITRO ELITE nitrogen-infused PEBA foam yields a springier, high-rebound toe-off compared to ZoomX LT with two forefoot Air Zoom units's grounded, stable feel.
Outsole Durability & TractionTougher rubber than 50% of road shoes
Fast Shot rubber (forefoot and lateral heel patches)4.8/10
PUMAGRIP rubber4.8/10
›Alphafly 4 utilizes Fast Shot rubber (forefoot and lateral heel patches) compound formulated for extended 500+ mile abrasive asphalt longevity.
Fit & Sizing Consensus
Real-world wear-test consensus across runner foot profiles
Alphafly 4
Fast-R Nitro Elite 3
Sizing LengthSizing differs
Runs Small
Alphafly54%
True to Size
Fast-R80%
Runs Large
Alphafly 4: Runs small — consider 0.5 size up(n=13)
Fast-R Nitro Elite 3: True to size(n=28)
Toe Box WidthMatch
Performance Tight
Standard
Alphafly57%Fast-R76%
Wide
Alphafly 4: Standard width(n=11)
Fast-R Nitro Elite 3: Standard width(n=24)
Arch SupportMatch
Flat / Low
Alphafly72%Fast-R70%
Neutral Stability
High Arch
Alphafly 4: Flat / low arch(n=9)
Fast-R Nitro Elite 3: Flat / low arch(n=19)
The Record · Specification Telemetry
Cohort-relative percentiles and verified technical specs
Alphafly 4
Fast-R Nitro Elite 3
Weight (US Men's 9)Lighter than 96% of daily trainers
Alphafly 4208g
Fast-R Nitro Elite 3170g
›Puma Fast-R Nitro Elite 3 saves 38g per stride, noticeable after mile 6 of continuous running.
Heel Cushion StackMore underfoot foam than 58% of trainers
Alphafly 439.0mm
Fast-R Nitro Elite 340.0mm
›Puma Fast-R Nitro Elite 3 delivers 1.0mm more vibration isolation for long recovery efforts than Alphafly 4.
Heel-to-Toe DropΔ 0.0mm
Alphafly 48.0mm
Fast-R Nitro Elite 38.0mm
›Both shoes share an identical 8mm drop geometry for balanced biomechanical loading.
Midsole Foam & Energy ReturnHigher rebound than 97% of tested foams
ZoomX LT with two forefoot Air Zoom units9.8/10
NITRO ELITE nitrogen-infused PEBA foam9.9/10
›NITRO ELITE nitrogen-infused PEBA foam yields a springier, high-rebound toe-off compared to ZoomX LT with two forefoot Air Zoom units's grounded, stable feel.
Outsole Durability & TractionTougher rubber than 50% of road shoes
Fast Shot rubber (forefoot and lateral heel patches)4.8/10
PUMAGRIP rubber4.8/10
›Alphafly 4 utilizes Fast Shot rubber (forefoot and lateral heel patches) compound formulated for extended 500+ mile abrasive asphalt longevity.
| RADAR AXIS | Alphafly 4 | Fast-R Nitro Elite 3 | Δ DELTA | COHORT RANK |
|---|---|---|---|---|
| Cushioning & Softness | 9.6 | 9.7 | −0.1 (Fast-R Nitro Elite 3 higher by NaN) | #5/24 |
| Energy Return & Bounce | 9.8 | 9.9 | −0.1 (Fast-R Nitro Elite 3 higher by NaN) | #5/24 |
| Weight Efficiency | 9.6 | 9.9 | −0.3 (Fast-R Nitro Elite 3 higher by NaN) | #5/24 |
| Stability & Support | 6.4 | 6.4 | 0.0 (dead even) | #5/24 |
| Traction & Grip | 7.4 | 7.8 | −0.4 (Fast-R Nitro Elite 3 higher by NaN) | #5/24 |
| Upper Comfort & Lockdown | 9.0 | 8.2 | +0.8 (Alphafly 4 higher by 0.8) | #5/24 |
| Breathability | 9.3 | 9.3 | 0.0 (dead even) | #5/24 |
| Durability | 4.8 | 4.8 | 0.0 (dead even) | #5/24 |
| Meta-Score | 88elite | 88elite | 0.0 | Calibrated |
The Runner's Pick
Final Decision: Who Buys Which Model?
Side-by-side selection criteria grounded in verified mechanical specs
Nike
Alphafly 4
88
Choose the Alphafly 4 if:
Choose the Alphafly 4 if your priority is plush step-in collar padding and irritation-free lockdown powered by ZoomX LT with two forefoot Air Zoom units paired with a carbon plate (208g). It is the better match for runners targeting friction-free blister prevention across long endurance sessions over the Fast-R Nitro Elite 3's focus on high-mileage protection and low-impact recovery cruising.
8mm drop · 208g · $280Audit
Puma
Fast-R Nitro Elite 3
88
Choose the Fast-R Nitro Elite 3 if:
Choose the Fast-R Nitro Elite 3 if your priority is tenacious rubber bite across slick pavement and wet turns powered by NITRO ELITE nitrogen-infused PEBA foam paired with a carbon plate and a noticeably lighter weight (170g vs 208g). It is the better match for runners targeting all-weather grip and confident cornering on slick streets over the Alphafly 4's focus on friction-free blister prevention across long endurance sessions.
8mm drop · 170g · $300Audit
Quiver Overlap
Direct Race Super Rivals
2-Shoe Rotation Strategy
Both models occupy the exact same race super slot on your shoe rack. Rather than buying both, runner consensus suggests picking the lighter Fast-R Nitro Elite 3 (170g) for quicker cadence, or the Alphafly 4 for its ZoomX LT with two forefoot Air Zoom units ride feel and structure.
Alphafly 4 RoleRace Super Workhorse
Fast-R Nitro Elite 3 RoleAlternative Race Super
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