[{"data":1,"prerenderedAt":929},["ShallowReactive",2],{"cheatsheet-\u002Fcheatsheets\u002Ffirst-marathon":3},{"id":4,"title":5,"body":6,"date":911,"dateModified":911,"description":912,"extension":913,"icon":914,"meta":915,"navigation":916,"path":917,"readTime":918,"seo":919,"sitemap":920,"stem":921,"tags":922,"version":927,"__hash__":928},"cheatsheets\u002Fcheatsheets\u002Ffirst-marathon.md","Your First Marathon",{"type":7,"value":8,"toc":898},"minimark",[9,14,64,68,76,94,122,126,129,217,224,228,231,406,416,425,429,436,574,583,587,590,636,645,649,682,686,693,780,815,819,822,832,840,848,856,864,872,876,879,893],[10,11,13],"h2",{"id":12},"tldr","TL;DR",[15,16,19,45],"tldr-summary",{"lead":17,"takeaway":18},"Your heart will be ready long before your tendons are — train for the slow clock.","Mostly easy, cap the long run, lift twice a week, taper for real, and rehearse your fueling before race day.",[20,21,23],"template",{"v-slot:dos":22},"",[24,25,26,30,33,36,39,42],"ul",{},[27,28,29],"li",{},"Build for 16–30 weeks depending on your starting point",[27,31,32],{},"Keep ~80% of running easy",[27,34,35],{},"Cap the long run at 25–30% of weekly volume",[27,37,38],{},"Lift 2–3× a week — the best injury shield there is",[27,40,41],{},"Taper 2 weeks, cutting volume 41–60%",[27,43,44],{},"Practice 60–90 g carbs\u002Fhour on long runs before race day",[20,46,47],{"v-slot:donts":22},[24,48,49,52,55,58,61],{},[27,50,51],{},"Don't spike a single run >30% past your recent longest",[27,53,54],{},"Don't trust the 10% rule — it's weakly supported",[27,56,57],{},"Don't skip strength work because it feels optional",[27,59,60],{},"Don't try new fuel or gear for the first time on race day",[27,62,63],{},"Don't run through pain that changes your form",[10,65,67],{"id":66},"the-two-clocks","The two clocks",[69,70],"u-alert",{"color":71,"description":72,"icon":73,"title":74,"variant":75},"success","Your first marathon isn't really a fitness test — it's a tissue-tolerance test. Your heart and lungs adapt in weeks; your tendons, ligaments and bone need months.","i-ph-check-circle-duotone","In one sentence","subtle",[77,78,79,80,84,85,89,90,93],"p",{},"VO",[81,82,83],"sub",{},"2","max, capillaries, and mitochondria all improve within ",[86,87,88],"strong",{},"6–12 weeks"," of consistent training. Tendons, ligaments, and bone need ",[86,91,92],{},"6–12 months"," to remodel and tolerate 26.2 miles of repetitive impact. Almost every \"couch-to-marathon in 16 weeks\" plan is built around the fast clock — and almost every first-marathon injury comes from ignoring the slow one. Everything below is about respecting both.",[95,96,98,110,113],"callout",{"color":97},"neutral",[77,99,100],{},[101,102,109],"span",{"className":103},[104,105,106,107,108],"uppercase","text-xs","text-neutral-500","font-semibold","tracking-wider","How to read the impact scale",[111,112],"impact-scale",{},[77,114,115],{},[101,116,121],{"className":117},[118,119,120,106],"mt-3","block","text-sm","Ratings reflect typical evidence strength and effect size for a first-time marathoner. Individual results vary.",[10,123,125],{"id":124},"how-long-will-it-actually-take-you","How long will it actually take you?",[77,127,128],{},"Let your tissue-conditioning base set the timeline — not a generic plan's headline number.",[130,131,132,148],"table",{},[133,134,135],"thead",{},[136,137,138,142,145],"tr",{},[139,140,141],"th",{},"Starting point",[139,143,144],{},"Realistic timeline",[139,146,147],{},"Why",[149,150,151,165,178,191,204],"tbody",{},[136,152,153,159,162],{},[154,155,156],"td",{},[86,157,158],{},"Complete beginner",[154,160,161],{},"24–30 weeks",[154,163,164],{},"Couch → 5K → 10K → half → full is the safer on-ramp; some coaches push for 12+ months of pure base",[136,166,167,172,175],{},[154,168,169],{},[86,170,171],{},"Recreational runner (5–10 km base)",[154,173,174],{},"16–20 weeks",[154,176,177],{},"Standard, well-supported by program-design consensus",[136,179,180,185,188],{},[154,181,182],{},[86,183,184],{},"Comfortable half-marathoner",[154,186,187],{},"12–16 weeks",[154,189,190],{},"Pacing, fueling, and long-run discipline already rehearsed",[136,192,193,198,201],{},[154,194,195],{},[86,196,197],{},"Masters (40+)",[154,199,200],{},"Same weeks, denser recovery",[154,202,203],{},"48–72 h between hard sessions; more strength work; ~1.6–2.4 g\u002Fkg\u002Fday protein",[136,205,206,211,214],{},[154,207,208],{},[86,209,210],{},"Time-crunched (3 days\u002Fweek)",[154,212,213],{},"Workable, but concentrates load",[154,215,216],{},"Spreading volume across 4–5 days is better-evidenced when it's an option",[218,219,221],"note",{"icon":220},"i-ph-hourglass",[77,222,223],{},"None of these ranges come from a randomized trial — they're expert consensus, reasoned backward from the 6–12 month connective-tissue timeline. Treat them as informed defaults, not physiology carved in stone.",[10,225,227],{"id":226},"what-works","What works",[77,229,230],{},"Where to spend your training energy. Sorted roughly by payoff.",[130,232,233,250],{},[133,234,235],{},[136,236,237,240,243,247],{},[139,238,239],{},"Factor",[139,241,242],{},"Why it helps",[139,244,246],{"align":245},"center","Impact",[139,248,249],{},"Payoff",[149,251,252,271,288,305,321,338,356,373,389],{},[136,253,254,259,262,268],{},[154,255,256],{},[86,257,258],{},"Strength training, 2–3×\u002Fweek",[154,260,261],{},"Cuts overuse injuries to roughly a third; adds 2–8% running economy.",[154,263,264],{"align":245},[265,266],"impact-dots",{"value":267},"4",[154,269,270],{},"6–8 weeks",[136,272,273,278,281,285],{},[154,274,275],{},[86,276,277],{},"Long run capped at 25–30% of weekly volume",[154,279,280],{},"Builds endurance without outpacing what tendons and bone can absorb.",[154,282,283],{"align":245},[265,284],{"value":267},[154,286,287],{},"Weeks–months",[136,289,290,295,298,302],{},[154,291,292],{},[86,293,294],{},"Progressing off your longest run, not last week's total",[154,296,297],{},"The real injury signal is a single run spiking >30% past your recent longest.",[154,299,300],{"align":245},[265,301],{"value":267},[154,303,304],{},"Ongoing",[136,306,307,312,315,319],{},[154,308,309],{},[86,310,311],{},"~80% easy running",[154,313,314],{},"Keeps the large majority of training conversational so hard work can do its job.",[154,316,317],{"align":245},[265,318],{"value":267},[154,320,287],{},[136,322,323,328,331,335],{},[154,324,325],{},[86,326,327],{},"2-week taper, 41–60% volume cut",[154,329,330],{},"The most efficient way to arrive at the start line fresh, per two meta-analyses.",[154,332,333],{"align":245},[265,334],{"value":267},[154,336,337],{},"2 weeks",[136,339,340,345,348,353],{},[154,341,342],{},[86,343,344],{},"Race-day fueling, 60–90 g carbs\u002Fhour",[154,346,347],{},"Glycogen only covers ~90–120 minutes at pace — the rest has to come from outside.",[154,349,350],{"align":245},[265,351],{"value":352},"3",[154,354,355],{},"Race day",[136,357,358,363,366,370],{},[154,359,360],{},[86,361,362],{},"Run-walk strategy",[154,364,365],{},"Similar finish times to continuous running, with meaningfully less soreness and fatigue.",[154,367,368],{"align":245},[265,369],{"value":352},[154,371,372],{},"Immediate",[136,374,375,380,383,387],{},[154,376,377],{},[86,378,379],{},"Sleep extension (8–10 h)",[154,381,382],{},"The single highest-yield, free recovery lever available during a build.",[154,384,385],{"align":245},[265,386],{"value":352},[154,388,304],{},[136,390,391,396,399,403],{},[154,392,393],{},[86,394,395],{},"A 5–10% cadence bump",[154,397,398],{},"Cuts knee-joint loading roughly 16–34% at the same pace.",[154,400,401],{"align":245},[265,402],{"value":83},[154,404,405],{},"Instant",[407,408,410],"tip",{"icon":409},"i-ph-check-circle-fill",[77,411,412,415],{},[86,413,414],{},"The pattern:"," the big wins are all restraint — easy running, a capped long run, and gradual progression — plus two things you actively add: strength work and a real taper. None of it is glamorous, and that's the point.",[218,417,419],{"icon":418},"i-ph-dna",[77,420,421,424],{},[86,422,423],{},"Genetics still plays a role:"," ~18% of runners simply don't respond the same way to a given intensity mix, and about half of how much your engine adapts is inherited. A plan that gets you to the start line healthy beats one copied off a stranger who happens to respond differently than you.",[10,426,428],{"id":427},"what-holds-you-back","What holds you back",[77,430,431,432,435],{},"The traps that quietly derail a first-marathon build. The ",[86,433,434],{},"cost"," column shows how much each drains, with the fix beside it.",[130,437,438,453],{},[133,439,440],{},[136,441,442,444,447,450],{},[139,443,239],{},[139,445,446],{},"What goes wrong",[139,448,449],{"align":245},"Cost",[139,451,452],{},"Fix",[149,454,455,472,489,506,523,540,557],{},[136,456,457,462,465,469],{},[154,458,459],{},[86,460,461],{},"A single run >30% past your longest",[154,463,464],{},"Injury risk rises in a dose-response curve — up to 2.28× at the largest spikes.",[154,466,467],{"align":245},[265,468],{"value":267,"tone":434},[154,470,471],{},"Progress off your recent longest run, not weekly mileage.",[136,473,474,479,482,486],{},[154,475,476],{},[86,477,478],{},"Running through form-changing pain",[154,480,481],{},"Small issues become bone stress injuries and tendinitis if ignored.",[154,483,484],{"align":245},[265,485],{"value":267,"tone":434},[154,487,488],{},"Stop that run — the single most actionable rule in any plan.",[136,490,491,496,499,503],{},[154,492,493],{},[86,494,495],{},"Skipping strength work",[154,497,498],{},"Forfeits the best-evidenced injury-prevention tool available.",[154,500,501],{"align":245},[265,502],{"value":352,"tone":434},[154,504,505],{},"Two to three short sessions a week, even if 10 minutes.",[136,507,508,513,516,520],{},[154,509,510],{},[86,511,512],{},"Trusting the 10% rule",[154,514,515],{},"A 532-runner RCT found no injury difference between 10% and ~24% weekly progression.",[154,517,518],{"align":245},[265,519],{"value":83,"tone":434},[154,521,522],{},"Watch single-run spikes, not week-to-week totals.",[136,524,525,530,533,537],{},[154,526,527],{},[86,528,529],{},"New fuel, gear, or pace on race morning",[154,531,532],{},"Untested gut tolerance and untested shoes ruin more races than lack of fitness.",[154,534,535],{"align":245},[265,536],{"value":352,"tone":434},[154,538,539],{},"Rehearse the exact race-day plan on long runs.",[136,541,542,547,550,554],{},[154,543,544],{},[86,545,546],{},"Leaning on the acute:chronic workload ratio",[154,548,549],{},"Reviewed and found mathematically flawed as an injury predictor.",[154,551,552],{"align":245},[265,553],{"value":83,"tone":434},[154,555,556],{},"Use trend-based load monitoring instead.",[136,558,559,564,567,571],{},[154,560,561],{},[86,562,563],{},"Trusting a 5K-based marathon prediction literally",[154,565,566],{},"Riegel's formula systematically over-predicts the marathon; ~1 in 5 miss meaningfully.",[154,568,569],{"align":245},[265,570],{"value":83,"tone":434},[154,572,573],{},"Pad the number — treat it as a rough goal, not a promise.",[575,576,578],"warning",{"icon":577},"i-ph-warning",[77,579,580,582],{},[86,581,414],{}," almost every setback traces back to going too far, too fast, or too new — a bigger jump than your tissue could absorb, or a race-day choice you never tested. Boring and gradual wins.",[10,584,586],{"id":585},"how-to-build-it","How to build it",[77,588,589],{},"Six building blocks. Layer them onto a base of easy running — you don't need to reinvent the week.",[591,592,593,601,608,615,622,629],"card-group",{},[594,595,598],"training-card",{"badges":596,"title":597,"value":267},"Most days,Ongoing","Easy aerobic volume",[77,599,600],{},"Conversational running, ~80% of your week. The base every hard session and every long run draws on.",[594,602,605],{"badges":603,"title":604,"value":267},"Weekly,Weeks–months","The long run",[77,606,607],{},"Capped at 25–30% of weekly volume and 2.5–3 hours. Grows the endurance that race day actually demands.",[594,609,612],{"badges":610,"title":611,"value":267},"2–3× \u002F week,6–8 weeks","Strength training",[77,613,614],{},"Squats, deadlifts, hip thrusts, lunges, calf raises at ≥80% 1RM, 2–4 sets of 3–6 reps, plus hip\u002Fglute stability work.",[594,616,619],{"badges":617,"title":618,"value":352},"Beginners,Immediate","Run-walk (Galloway)",[77,620,621],{},"Structured walk breaks from the start — 2:1 for beginners, 4:1–5:1 for stronger runners. A strategy, not a fallback.",[594,623,626],{"badges":624,"title":625,"value":352},"Final 8 weeks,Race day","Race-fueling rehearsal",[77,627,628],{},"Build toward 60–90 g carbs\u002Fhour on long runs. Gut tolerance is trainable — never debut it on race morning.",[594,630,633],{"badges":631,"title":632,"value":267},"Final 2 weeks,2 weeks","Taper",[77,634,635],{},"Cut volume 41–60% while holding intensity and frequency steady. Reduce volume only — that's the whole lever.",[218,637,639],{"icon":638},"i-ph-calendar-check",[77,640,641,644],{},[86,642,643],{},"A simple week:"," 4–5 easy runs (one of them your long run), 2–3 short strength sessions, and at least one full rest day. Add a threshold session only once the base is solid.",[10,646,648],{"id":647},"taper-and-fueling","Taper and fueling",[591,650,651,662,672],{},[652,653,656],"card",{"icon":654,"title":655},"i-ph-timer","The taper",[77,657,658,661],{},[86,659,660],{},"2 weeks, 41–60% volume cut",", intensity and frequency held steady — the most efficient strategy across two independent meta-analyses. Detraining risk only shows up after ~14–21 days with zero stimulus at all.",[652,663,666],{"icon":664,"title":665},"i-ph-bread","Carb-loading",[77,667,668,671],{},[86,669,670],{},"10–12 g carbs\u002Fkg\u002Fday for the final 36–48 hours."," A single high-carb day matches the old week-long depletion protocol in trained athletes. Favor low-fiber, refined carbs across 5–6 meals.",[652,673,676],{"icon":674,"title":675},"i-ph-drop","Race-day fueling",[77,677,678,681],{},[86,679,680],{},"60–90 g carbs\u002Fhour"," past 2.5 hours, roughly 2:1 glucose:fructose at the higher end, plus 400–800 mL fluid and 300–600 mg sodium\u002Fhour. Rehearsed, never new.",[10,683,685],{"id":684},"how-to-track-it","How to track it",[77,687,688,689,692],{},"Single readings are noise. Watch these as ",[86,690,691],{},"trends",", not one-off numbers.",[130,694,695,708],{},[133,696,697],{},[136,698,699,702,705],{},[139,700,701],{},"Metric",[139,703,704],{},"What it tells you",[139,706,707],{"align":245},"Value",[149,709,710,724,738,752,766],{},[136,711,712,717,720],{},[154,713,714],{},[86,715,716],{},"Resting heart rate \u002F HRV",[154,718,719],{},"A sustained multi-day rise can flag incomplete recovery before you feel it.",[154,721,722],{"align":245},[265,723],{"value":267},[136,725,726,731,734],{},[154,727,728],{},[86,729,730],{},"Pace at a given heart rate",[154,732,733],{},"Running faster at the same HR is the cleanest, lowest-noise fitness signal there is.",[154,735,736],{"align":245},[265,737],{"value":267},[136,739,740,745,748],{},[154,741,742],{},[86,743,744],{},"Pain-free running",[154,746,747],{},"The single most actionable readiness check — no substitute for it.",[154,749,750],{"align":245},[265,751],{"value":267},[136,753,754,759,762],{},[154,755,756],{},[86,757,758],{},"Daily wellness check-in",[154,760,761],{},"Sleep, mood, soreness, motivation — catches overreaching earlier than HR markers alone.",[154,763,764],{"align":245},[265,765],{"value":352},[136,767,768,773,776],{},[154,769,770],{},[86,771,772],{},"Race-time predictors",[154,774,775],{},"Useful for a rough goal from a shorter race — but pad it; the marathon over-predicts.",[154,777,778],{"align":245},[265,779],{"value":83},[407,781,783],{"icon":782},"i-ph-trend-up",[77,784,785,786,793,794,800,801,807,808,814],{},"Set your zones with the ",[787,788,790],"a",{"href":789},"\u002Ftools\u002Fheart-rate-zone-calculator",[86,791,792],{},"Heart Rate Zone Calculator"," and dial in paces with the ",[787,795,797],{"href":796},"\u002Ftools\u002Ftraining-pace-calculator",[86,798,799],{},"Training Pace Calculator",". Feed a recent race into the ",[787,802,804],{"href":803},"\u002Ftools\u002Frace-time-predictor",[86,805,806],{},"Race Time Predictor"," for a rough goal — then pad it — and rehearse your splits with the ",[787,809,811],{"href":810},"\u002Ftools\u002Frace-strategy-calculator",[86,812,813],{},"Race Strategy Calculator",".",[10,816,818],{"id":817},"common-mistakes","Common mistakes",[77,820,821],{},"The traps that quietly cap most first-timers' race day.",[823,824,826],"caution",{"icon":825},"i-ph-warning-circle",[77,827,828,831],{},[86,829,830],{},"Chasing the fast clock."," Feeling aerobically fit doesn't mean your tendons and bone caught up — that takes months, not weeks.",[823,833,834],{"icon":825},[77,835,836,839],{},[86,837,838],{},"Spiking a single long run."," A jump of more than ~30% past your recent longest is the real injury signal — not last week's total mileage.",[823,841,842],{"icon":825},[77,843,844,847],{},[86,845,846],{},"Skipping the taper."," Cutting corners on the final 2 weeks throws away performance you already earned.",[823,849,850],{"icon":825},[77,851,852,855],{},[86,853,854],{},"Debuting gear or fuel on race day."," Untested shoes and untested carbs ruin more races than lack of fitness does.",[823,857,858],{"icon":825},[77,859,860,863],{},[86,861,862],{},"Treating strength work as optional."," It's the single best-evidenced injury-prevention tool available — and most first-timers skip it.",[823,865,866],{"icon":825},[77,867,868,871],{},[86,869,870],{},"Running through pain that changes your form."," Stop that run. It's the one rule worth never breaking.",[10,873,875],{"id":874},"go-deeper","Go deeper",[77,877,878],{},"This is the field guide. Want the studies, the exact percentages, and the reasoning behind every rating above?",[95,880,883],{"color":881,"icon":882},"primary","i-ph-books",[77,884,885,886,892],{},"Read the full deep-dive — ",[787,887,889],{"href":888},"\u002Fblog\u002Ffirst-marathon",[86,890,891],{},"Your First Marathon: It's Tendons, Not Fitness"," — for the complete, science-backed guide, including cardiac-risk data, recovery science, and stage-by-stage build instructions.",[69,894],{"color":97,"description":895,"icon":896,"title":897,"variant":75},"This is educational information, not a substitute for personalized medical guidance. If you're new to distance running, returning from injury, or managing a health condition, get medical clearance before increasing volume or intensity.","i-ph-info","Not medical advice",{"title":22,"searchDepth":899,"depth":899,"links":900},2,[901,902,903,904,905,906,907,908,909,910],{"id":12,"depth":899,"text":13},{"id":66,"depth":899,"text":67},{"id":124,"depth":899,"text":125},{"id":226,"depth":899,"text":227},{"id":427,"depth":899,"text":428},{"id":585,"depth":899,"text":586},{"id":647,"depth":899,"text":648},{"id":684,"depth":899,"text":685},{"id":817,"depth":899,"text":818},{"id":874,"depth":899,"text":875},"2026-07-20T11:15:00","Your quick, science-backed guide to your first marathon — how long it actually takes, what training works, how to taper and fuel, and how to arrive at the start line ready.","md","i-ph-flag-checkered",{},true,"\u002Fcheatsheets\u002Ffirst-marathon","7 min read",{"title":5,"description":912},{"loc":917},"cheatsheets\u002Ffirst-marathon",[923,924,925,926],"running","marathon","training","injury-prevention","v1.0","vsSUvKqPvldORCKnX7UWSu-4Vb8UpYPIAGePsqXc9D4",1784543314929]