Player
Isaac Guerendo
RB · 49ers
The efficiency holds up even at meaningful volume, which separates it from small-sample flukes like Davis's 30-carry mark.
5.0 YPC in 84 rookie carries — 3rd among Day-3 RBs and 2nd among any Day-3 RB with 75+ carries.
TrendGuerendo by season
| Season | GP | Car | RuYds | RuTD | YPC | Rec |
|---|---|---|---|---|---|---|
| 2024 | 16 | 84 | 420 | 4 | 5.0 | 15 |
| 2025 | 7 | 0 | 0 | 0 | — | 0 |
Guerendo was a 4th-round pick out of Louisville. With Christian McCaffrey hurt and Jordan Mason out for stretches, he carved a real rotational role: 84 carries for 420 yards, 5.0 YPC, 4 TDs as a rookie.
Among 2024 Day-3 drafted RBs with 75+ carries, only Bucky Irving (5.42 YPC, 207 carries) outpaced him. Among the broader Day-3 class, Isaiah Davis (5.8 YPC, 30 carries) ranked first on a tiny sample. At meaningful volume, Guerendo was the second-most efficient.
2025 has been the inverse — 7 games played but zero carries. He's stayed on the roster but hasn't seen the field on offense, with McCaffrey healthy and the 49ers running a tighter backfield rotation.
Why it matters. The efficiency holds up even at meaningful volume, which separates it from small-sample flukes like Davis's 30-carry mark.
Week 6 vs Seattle: 99 rushing yards on just 10 carries — 9.9 YPC.
AnomalyGuerendo — top rookie games
| Wk | Opp | Car | RuYds | YPC | RuTD |
|---|---|---|---|---|---|
| 6 | SEA | 10 | 99 | 9.9 | 0 |
| 8 | DAL | 14 | 85 | 6.1 | 1 |
| 14 | CHI | 15 | 78 | 5.2 | 2 |
| 15 | LA | 16 | 57 | 3.6 | 0 |
| 17 | DET | 9 | 34 | 3.8 | 0 |
In Week 6 vs Seattle, Guerendo turned 10 carries into 99 yards — a near-double-digit YPC that included a 76-yard burst. Even excluding that run, the rookie tape was steady: three 75+ yard rushing games, all in different game scripts.
The most complete rookie performance: Week 14 vs Chicago, 2 rushing TDs plus 50 receiving yards — 128 scrimmage yards in a single game.
Why it matters. A 9.9 YPC game on 10 carries is top-6 in the 2024 season among all RBs with 10+ carries — the burst speed is real.
93.8% catch rate on 16 targets — one of only 3 RBs in 2024 with 75+ carries AND 90%+ catch rate.
Rare2024 RBs: dual-threat reliability (75+ car, 14+ targets, 90%+ catch rate)
| Player | Car | YPC | Rec/Tgt | Catch% |
|---|---|---|---|---|
| David Montgomery | 185 | 4.19 | 36/38 | 94.7% |
| Isaac Guerendo | 84 | 5.0 | 15/16 | 93.8% |
| Bucky Irving | 207 | 5.42 | 47/52 | 90.4% |
Guerendo's 15 receptions on 16 targets (93.8%) placed him in exclusive company: only three RBs in 2024 combined 75+ carries with a 90%+ catch rate on 14+ targets. The other two — David Montgomery and Bucky Irving — were full-time starters.
For a fourth-round pick in a rotation behind CMC and Mason, maintaining that catching efficiency while also posting 5.0 YPC on the ground is the profile that earns a roster spot even when the opportunities dry up.
Why it matters. It shows Guerendo isn't just a speed-burst runner — the hands and pass-pro profile raise his floor on any team that loses a starting RB.
5.0 YPC was 2nd among Day-3 rookie RBs with real volume — Bucky Irving (5.42) was the only one ahead.
Comparison2024 Day-3 rookie RBs with 75+ carries
| Player | Car | RuYds | YPC |
|---|---|---|---|
| Bucky Irving (TB) | 207 | 1122 | 5.42 |
| Isaac Guerendo (SF) | 84 | 420 | 5.0 |
| Audric Estimé (DEN) | 76 | 310 | 4.08 |
| Ray Davis (BUF) | 113 | 442 | 3.91 |
| Braelon Allen (NYJ) | 92 | 334 | 3.63 |
Among 2024 Day-3 rookie RBs with 75+ carries, Guerendo's 5.0 YPC ranked second — behind Bucky Irving's 5.42 on 207 carries, and well clear of the field. Irving earned a starting job in Tampa; Guerendo enters 2025 behind a healthy CMC.
The 84-carry sample is the differentiator — it's large enough to be meaningful but small enough that every blown assignment is visible. The 5.0 held up across five distinct game scripts, from a 10-carry/99-yard burst to a 16-carry grind.
Why it matters. Irving's 5.42 YPC on 207 carries is the more complete proof of concept — but Guerendo's 5.0 at 84 carries in a rotation is a realistic floor for what he'd produce with a featured role.
Year 2 has produced 0 offensive touches through 7 appearances — CMC absorbed 65% of SF's carries.
Milestone49ers RB carry distribution — 2025
| Player | Car | RuYds | YPC |
|---|---|---|---|
| C. McCaffrey | 311 | 1202 | 3.86 |
| B. Robinson | 92 | 400 | 4.35 |
| I. Guerendo | 0 | 0 | — |
The most striking line in Guerendo's 2025: 0 carries, 0 targets across 7 games played. A healthy McCaffrey absorbed 311 of San Francisco's 481 carries (65%) in 2025, leaving Brian Robinson as the clear handcuff with 92 carries. Guerendo received none.
When players go from 84 rookie carries to zero, it's usually about the room — not the player. Guerendo is one of just 4 RBs since 2000 who produced 80+ carries in Year 1 then appeared in 3+ games the following season without a single carry. The 5.0 YPC tape still exists; the opportunity does not — yet.
Why it matters. The carry-share stat makes the ghosting concrete — it's not a depth chart mystery, it's a single-alpha-RB offense where the backup is decorative.
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