The ideal number of running backs to draft in fantasy football depends on your league format, bench size, and overall strategy. In most standard redraft leagues, drafting between five and seven RBs is the safest approach. Running backs get injured more often than other positions, so depth matters more at RB than almost anywhere else.
Most fantasy football owners should leave their draft with at least five running backs. Even if you start RB-heavy or use a Zero RB strategy, having depth and upside at the position is critical.
1. Most Teams Should Draft 5-7 RBs #
In a typical league with:
- 2 starting RB spots
- 1 FLEX position
- Medium-sized benches
The sweet spot is usually:
- 5 RBs minimum
- 6 RBs preferred
- 7 RBs in deeper formats
This gives you enough weekly flexibility while protecting against injuries and bye weeks.
2. RB Injuries Change Everything #
Running back is the most volatile position in fantasy football. Workloads shift quickly, and injuries happen every season.
That’s why drafting extra RB depth matters.
Late-round RBs can become league winners if:
- A starter gets hurt
- Their role expands
- They earn goal-line work
- The offense improves
Owners who ignore RB depth often struggle by midseason.
3. Your Draft Strategy Matters #
The number of RBs you draft should match your overall build.
If You Start RB-Heavy:
You may only need:
- 5 total RBs
- More WR depth later
If You Use Zero RB:
You should aggressively target:
- 6-7 RBs
- High-upside backups
- Pass-catching specialists
- Handcuffs with breakout potential
The less elite RB talent you draft early, the more depth you need later.
4. Bench Size Impacts RB Volume #
Larger benches increase the value of stash RBs.
In deeper leagues:
- Draft more backup RBs
- Prioritize upside over low-ceiling veterans
- Hold injury-away starters
In shallow leagues:
- Waiver wires are stronger
- You can draft fewer RBs overall
Always adjust to league settings.
5. Don’t Ignore Other Positions #
While RB depth is important, drafting too many can create problems elsewhere.
Avoid:
- Hoarding low-upside RBs
- Ignoring WR depth
- Carrying too many bench-only players
Your roster still needs balance.
6. Prioritize Upside Late #
The best late-round RB targets usually have:
- Explosive athletic traits
- Clear paths to touches
- Receiving ability
- Injury upside behind fragile starters
Those players often outperform predictable veterans with limited ceilings.
The best fantasy football owners stay flexible, but in most formats, drafting 5-7 running backs gives you the best combination of stability, upside, and roster flexibility throughout the season.
