Step 02 — The lineup
6 shoes scored across eleven metrics · Any purpose
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Nothing further afield worth the detour from this lineup.
Sizing note
Sinister run snug — go up half a size, especially for long runs.
Durability
Plated models here average ~250 mi; non-plated land closer to ~390 mi.
Step 03 — Every metric
| Metric | Saucony Fastwitch 9 | Saucony Sinister | Saucony Freedom 4 | Saucony Kinvara 16 | Adidas Adizero RC 5 | Nike Free Metcon 6 | Nike Rival Fly 4 |
|---|---|---|---|---|---|---|---|
| Weight | 190 g / 6.7 oz | 190 g / 6.7 oz | 227 g / 8.0 oz | 207 g / 7.3 oz | 210 g / 7.4 oz | 290 g / 10.2 oz | 235 g / 8.3 oz |
| Drop | 4 mm | 6 mm | 4 mm | 4 mm | 8 mm | 4 mm | 8 mm |
| Stack (heel) | 20 mm | 33 mm | 28 mm | 29 mm | 28 mm | 25 mm | 30 mm |
| Cushioning | |||||||
| Flexibility | |||||||
| Stability | |||||||
| Rocker geometry | |||||||
| Energy return | |||||||
| Responsiveness | |||||||
| Toe-box | Narrow | Narrow | Standard | Standard | Standard | Standard | Standard |
| Plate | — | Carbon | — | — | — | — | — |
| Intended pace | 5:30–7:15 /mi | 5:15–7:15 /mi | 7:30–10:00 /mi | 6:30–8:30 /mi | 6:15–8:30 /mi | 9:30–12:30 /mi | 6:45–9:15 /mi |
| Purpose | Race day, Tempo | Race day, Tempo | Daily, Long run | Tempo, Daily | Tempo, Race day | Daily | Tempo, Daily |
| Sizing | Size up ½ | Size up ½ | True to size | True to size | True to size | True to size | True to size |
| Durability | ~250 mi | ~250 mi | ~400 mi | ~400 mi | ~300 mi | ~450 mi | ~400 mi |
| Price | $100 | $180 | $180 | $140 | $90 | $130 | $100 |
Your reference shoe is shown first for context. Cushioning, flexibility and stability are rated 1–5.