B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
31%
31% -- reply rate lift for personalized subject lines (A/B test) (2026)
Personalizing subject lines with company name generated a 31% lift in reply rate in A/B testing.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
31%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Genesis (BP Corp data)
Primary
Tier B
https://getgenesis.app/blog/outreach-sequences-reply-rates ↗
Source Article
We Tested 47 Outreach Sequences: Here's What Gets 15%+ Reply Rates
How to Build Multi-Step Outreach Sequences That Get 15%+ Reply Rates
A single cold email generates a 3-5% reply rate on average. Most prospects ignore it, forget it, or never see it (spam folder, inbox overload).
Multi-step outreach sequences solve this by creating 5-7 touchpoints over 2-3 weeks. Ea…
Original Research
Genesis (BP Corp data)
· Original study ↗
Methodology
From 30+ A/B tests on subject lines, copy length, and CTAs
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
personalized subject lines (A/B test): 31% reply rate lift. Source: Genesis (BP Corp data) (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/personalized-subject-line-lift-31
HTML Embed
<blockquote cite="https://lighthousedata.io/data/personalized-subject-line-lift-31" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>31%</strong> -- reply rate lift for personalized subject lines (A/B test)<br><small>Source: Genesis (BP Corp data) (2026) · <a href="https://lighthousedata.io/data/personalized-subject-line-lift-31" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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