For the 4 million Americans turning 65 every year

The Peak 65 Playbook

A step-by-step system for Social Security, Medicare, Roth conversions, and spending your savings without running out.

Retirement is an engineering problem: income, uncertainty, and time. This book solves it the way an engineer would — with decision trees, tables, worked examples, and an annual maintenance checklist. No hype. No 400 pages of filler. Just the system.

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Paperback & Kindle · 2026 Edition · By Robert Eisenlohr, quantitative researcher & developer

The Peak 65 Playbook book cover

The decisions this book makes easy

Claim at 62, 67, or 70?

The real math of early vs. delayed claiming — reduction percentages, break-even ages, longevity odds, and a decision tree that ends the argument.

The Medicare handoff

Enrollment windows, late penalties that last for life, Medigap vs. Advantage, and the IRMAA income cliffs — on one timeline.

Which account do I spend first?

Withdrawal order, bracket-filling, and the Roth conversion window between retirement and RMDs — with worked numbers.

Will my money last?

Sequence-of-returns risk explained with two retirees who earned the same return and got opposite outcomes — and the guardrail systems that survive it.

Couples & survivors

Why the higher earner's delay is really life insurance, survivor sequencing, the widow's tax penalty, and divorced-spouse rules.

Defense

The current fraud playbook targeting retirees, how to verify any advisor in five minutes, and the long-term-care numbers nobody quotes you.

Inside the system

Written by an engineer who builds risk systems for banks

Robert Eisenlohr

Robert Eisenlohr is a quantitative researcher and developer with 23+ years of professional engineering behind him. He holds two engineering degrees and MBA coursework in Finance and Corporate Law, and earlier in his career — while working at a proprietary trading firm — he held the FINRA Series 57 (Securities Trader) registration. He has spent his career building portfolio-analysis and risk systems used inside a Tier-1 global bank, across equities, options, currencies, and futures.

The Peak 65 Playbook applies that discipline to the one portfolio that matters most: yours. Every rule in this book is sourced, every number dated, and every chapter ends in a checklist — because a retirement plan you can't operate isn't a plan.

Get the book

Available on Amazon in paperback and Kindle. Paperback ISBN 979-8-187806-47-8.

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This book is general educational information — not financial, investment, tax, accounting, or legal advice, and not a recommendation. The author is not an attorney, CPA, or licensed financial advisor. Consult your own licensed professionals before acting.