Rough'n Tumble

{{Short description|American-bred Thoroughbred racehorse}}

{{Use American English|date=August 2017}}

{{Use mdy dates|date=August 2017}}

{{Infobox racehorse

| horsename = Rough'n Tumble

| image =

| caption =

| sire = Free For All

| grandsire = Questionnaire

| dam = Roused

| damsire = Bull Dog

| sex = Stallion

| foaled = 1948

| country = United States

| colour = Bay

| breeder =

| owner = Frances A. Genter

| trainer = Melvin Calvert

| record = 16: 4-5-4

| earnings = US$126,980

| race = Primer Stakes (1950)
Santa Anita Derby (1951)

| awards =

| honours =

| updated=

}}

Rough'n Tumble (foaled in 1948) was an American Thoroughbred racehorse who won the Santa Anita Derby and became what Bloodhorse called "one of the most successful stallions in Florida breeding history."{{Cite web |date=2003-08-16 |title=Top Florida Trainer Melvin Calvert Dies at 93 |url=https://www.bloodhorse.com/horse-racing/articles/17519/top-florida-trainer-melvin-calvert-dies-at-93 |access-date=2025-04-14 |website=Bloodhorse}}

Rough'n Tumble was purchased privately for less than $5000 by Frances Genter, who entrusted his race conditioning to trainer Melvin Calvert.{{Cite news |last=Shevlin |first=Maurice |date=1951-07-21 |title=13 Run in $81,300 Classic Today |url=https://www.newspapers.com/article/chicago-tribune-13-run-in-81300-classi/170264122/ |access-date=2025-04-14 |work=Chicago Daily Tribune |page=23 |via=Newspapers.com}}

As a two-year-old, Rough'n Tumble won the Primer Stakes at Arlington Park{{Cite news |last=Shevlin |first=Maurice |date=1950-07-04 |title=Rough 'n Tumble Captures Primer |url=https://www.newspapers.com/article/chicago-tribune-rough-n-tumble-captures/170264194/ |access-date=2025-04-14 |work=Chicago Daily Tribune |page=29 |via=Newspapers.com}} and at three, he captured the most important race for his age group in California: the Santa Anita Derby.{{Cite news |date=1951-02-25 |title=Rough'n Tumble Winner of Santa Anita Derby |url=https://www.newspapers.com/article/the-los-angeles-times-roughn-tumble-win/170264250/ |access-date=2025-04-14 |work=Los Angeles Times |page=1 |via=Newspapers.com}}