CANNALIB · STRAIN DOSSIER · MARATHON OG
Marathon OG
2 independent sources put THC at 20%; 69 flower lab samples give a 10th to 90th percentile band of 20.2 to 29.2%; 1 recorded parent; 5 recorded descendants. It placed in results from The Emerald Cup and American Autoflower Cup.
Marathon OG is a indica dominant hybrid cannabis strain bred by Crop King Seeds. Lab tests put its THC between 20.2 and 29.2% (the middle 80% of 69 flower samples), with CBD around 0.1%. The terpenes most often reported are β-caryophyllene, α-humulene, limonene. Recorded parents: Og Kush. Stated flowering time 49 to 56 days. 2 cup placings on record, 1 verified against published results.
● frozen 2026-09-29 · API 0.7.1-stdlib
● evidence bar: thc 2 independent sources
● type: indica dominant hybrid
20%
THC, most-agreed claim
2 independent sources
20.2–29.2%
Flower lab range
10th to 90th percentile of 69 samples
1
Recorded parents
with sources, never guessed
5
Recorded descendants
through stated parent links
1/2
Cup results, verified/total
placings found in published results
3
Pictures on record
shown with source and credit
CHEMISTRY, CLAIM BY CLAIM
Every THC claim, and who made it.
| THC | Independent sources | Who states it |
|---|---|---|
| 20% | 2 | allbud, cropking, master |
| 22.3% | 1 | cannlytics_expand |
| 22.4% | 1 | cannlytics_expand |
| 8.6% | 1 | nv_ccb_lab_library |
| 13.8% | 1 | nv_ccb_lab_library |
| 14.6% | 1 | nv_ccb_lab_library |
| 15.2% | 1 | nv_ccb_lab_library |
| 17.5% | 1 | nv_ccb_lab_library |
| 18.7% | 1 | nv_ccb_lab_library |
| 18.7% | 1 | nv_ccb_lab_library |
| 20.6% | 1 | nv_ccb_lab_library |
| 22% | 1 | nv_ccb_lab_library |
Lab range 20.2 to 29.2% THC is the 10th to 90th percentile of 69 flower lab samples, median 26%; CBD 0 to 0.1% over 69 samples.
top terpenes by stated value: β-caryophyllene, α-humulene, limonene, β-myrcene, linalool, α-bisabolol
67 chemistry rows on record. Flagged rows never used as potency: 2 non flower, 1 quality flagged, 0 percent outliers.
GROW CLAIMS
Height and flowering, as stated.
| Height | Independent sources | Who states it |
|---|---|---|
| 80 to 120 cm | 2 | seedcity, seedcity_local |
| 152 to 244 cm | 1 | cropking |
| Flowering | Independent sources | Who states it |
|---|---|---|
| 49 to 56 days | 2 | seedcity, seedcity_local |
| 56 to 63 days | 1 | cropking |
LINEAGE
Recorded parents, and how many sources agree.
| Parent | Sources | Who states it |
|---|---|---|
| Og Kush | 1 | summary:lineage |
5 descendants through recorded links, including Daytona 5000, Forbidden Runtz, Cpt Og Auto, Midnight Madness Auto, Marathon Chem.
COMPETITIONS AND AWARD CLAIMS
Cup results with sources; claims with verdicts.
| Year | Competition | Category | Place | Checked |
|---|---|---|---|---|
| 2023 | American Autoflower Cup | Best Indica | 3rd | unverified |
| 2022 | The Emerald Cup | Indoor Flower | 8th | verified |
No seed-bank award claims on record.
PICTURES, WITH CREDIT
3 pictures on record. Three shown, each with its source.
credit: cropkingseeds.com · shown with credit, copyright unverified
credit: allbud.s3.amazonaws.com · shown with credit, copyright unverified
credit: americanautoflowercup.com · shown with credit, copyright unverified
How to read this page
Every value is a stated claim with its sources. Where sources disagree all claims are listed. The lab range is the 10th to 90th percentile of flower lab samples and is never blended with seed-bank claims. Parents are recorded links, never guessed. Pictures are shown with their source and credit; copyright is unverified. Nothing on this page was invented, averaged across sources or merged from another name.
Aliases on record: Marathon OG
Live card in the explorer → · Machine-readable record (API) → · Honesty rules →
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dossier marathon-og · frozen 2026-09-29 · published by CannaLib, a Plausible Deniability project · Cite as: CannaLib (2026). Marathon OG strain dossier. https://cannalib.org/strains/marathon-og/