How To Calculate Earned Run Average


It doesn’t matter how many innings pitched because if he never gave up a single earned run the numerator will always be zero and zero divided by ANY number is zero.

Ryan actually led the league in ERA in 1987 with 2.76. Let us use a real example and view Nolan Ryan’s stats for the 1987 season:

Earned Runs = 65

If a runner pitches a shutout for a game or season, it is easy to see that his ERA is 0.00.. Likewise, as another example, 15.1 innings would be 15.333 innings when properly factored.

Once you master earned run average, you can tackle hitting stats like calculating batting average and calculating slugging percentage, too. Just as a batting average is a great measure of hitter effectiveness, a pitcher’s earned run average (ERA) is a great gauge of a pitcher’s likelihood of success against an opposing team. So grab your calculator and get to calculating! The baseball cards are on the shelf and the season is about to begin!

Then using our formula:

(65 x 9) / 211.667 = 2.763 or 2.76

since ERA is always shown as rounded to two decimal places.

Baseball more than any other sport is a game of numbers. His ERA?

(3 ERs x 9) / 0 IP = undefined

**It is common to represent partial innings as .1 or .2 to symbolize the number of outs, but when the math is performed these should be converted to proper decimals.

With a zero in the denominator, this result is undefined since a number can NEVER be divided by zero. This will ensure an accurate calculation. He also led the majors with 270Ks that year, but finished with an 8 16 Record! The poor hitting Houston Astros gave his efforts little support. Even this poor win/loss record did not stop the Ryan Express from finishing in the Top 5 voting for the Cy Young Award that year. This shows why ERA can help provide an explanation for a seemingly dismal season and to allow for better decision making.

This simple formula does it all. For example, in his debut Wild Thing allows 3 runs on 6 walks and fails to retire a single batter before being yanked by his angry manager and shoved on a bus back to the bush leagues. His ERA shows just how good he was, but received little help. In this case, Ryan pitched 211 complete innings and 2 outs which is 2/3 inning or .667 making his actual innings pitched 211.667. Given a pitcher’s earned runs, you multiply by 9 and then divide by the total number of innings pitched. Also, if there is an error and runner(s) score, the number of Earned Runs should only be the number of runs that would have scored had the fielding been made cleanly.

Many people get confused by a pitcher having allowed Earned Runs but without retiring a batter. However, from calculus days, this result as the denominator gets closer and closer to zero is infinity and normally the pitcher’s ERA will be represented by the infinity symbol ().

If the Earned Runs are not given to you, or you are tallying for a game then just remember, the pitcher responsible for placing the runner on base gets saddled with the Earned Run if that baserunner scores even if the responsible pitcher is no longer in the game. These statistics allow fans to make comparisons amongst players and even allows for comparisons between current players and all-time greats. The method of how to calculate earned run average is an easy formula that will help your decision making in fantasy baseball leagues drafts, sports betting or acting as statistician for your neighborhood little league team.

The formula:

(Earned Runs x 9) / Innings Pitched

(0 ER x 9) / IP = 0.00

List of Hobby Ideas


For many, collecting postage stamps can be an enjoyable pastime, whereas for others, the interest lies in a variety of extreme sports such as snowboarding down icy mountain slopes. Regardless of the hobby (or hobbies) you select, try not to look at it as a way of filling your pocket. Let it be a way of achieving inner satisfaction, peace of mind, and experiencing happiness. But is that all the list should include? Surely there has to be a larger variety of hobbies out there. Why don’t we go over a more specific list, shall we?

A Detailed List of Hobbies


Motorcycle racing


Face painting

Flower arrangements

Tap dance


Patio decorating

Human evolution

Leather crafts

Playing video games

Internet home businesses


Landscape photography

Palmistry and numerology

Irish dancing



Hot air balloon rides

Studying dream interpretations


Space travel

Creating wall art

Scuba diving


Break dance

American history


Exploring caves

Online auctions

Exploring online forums



Indian dance styles

Speed skating

Wildlife photography


American football

Internet TV

Jet skiing


Magic and optical illusions

Designing ponds or water fountains

Ballroom dancing





Space exploration

Having a birdhouse



Card games




Ham radios

A hobby is an activity that we all love and enjoy. On that note, let us have a look at a comprehensive hobbies list, and one which includes a diverse list of hobbies and interests for people of all ages – children, adults, elders, retired citizens, etc.

Generic Hobbies

Salsa dancing

Architectural photography

Event planning


Sports betting


Paper crafts

Mountain biking

Wet plate photography


Metal art


Home decorating

Online trading


Playing PC games

Listening to online music


Disney vacations

Sports photography







Interior dcor

Party planning


Hip hop dance



Treasure hunting

Making gift baskets

Running and jogging


Roman history

Jewelry making

Amusement parks


Hang gliding

RV camping

Internet shopping


Bird watching

Feng shui

Dog training

Cake decorating

Latin dance



Ancient history


Sudoku puzzles

Handwriting analysis

Ice skating

Parachute jumps



Crystal healing


Powerboat racing




Geography and geology

Mountain expeditions


Body piercing

Ballet dancing

Kite flying

Martial arts


Casino games

Learning tarot card reading

Trekking. Horse riding

Comic books

River rafting

Social networking

Making clay sculptures

Bungee jumping

Nude photography

Stamp collecting

Racing sports cars


Digital photography

Aerobic exercises

Online chatting

Candle making

Greek mythology

Online games

Snow skiing

Rock climbing

Spiritual healing

Belly dancing


Figure skating

The following list is composed of a variety of hobbies for men, women, and kids of all ages. However, there are some daredevils out there who love to ride motorcycles as well. Arts and crafts, sports, performing arts, culinary arts, social service, gardening, traveling, collecting souvenirs, etc., are a few things that come to mind when we think of the word ‘hobbies’. Most people assume that typically, a majority of women will be interested in knitting or sewing as a hobby. As we don’t wish to discriminate against an individual’s choice of hobbies, we thought of listing them in an alphabetical order.

Aerial photography


Handcrafted jewelry

Contemporary art

Snowmobile racing

Lawn care

Coloring pages


Instant messaging

Wedding photography

Internet radio

That was a long, long list of hobbies, wasn’t it? Before signing off, I leave you with a little bit of parting advice. That way, you will enjoy it much more and to the fullest.

Charity work



Playing board games

Black & white photography


Coin collection



Street racing

Portrait photography


Learning foreign languages

Dinosaurs and fossils

Generally speaking, there are many types of hobbies that we get to see around us. Now whichever hobby you may be interested in, it is essential to pursue it either for pleasure, enjoyment, leisure, or an altogether different degree of happiness and satisfaction.


Generic Hobbies Detailed List There is a popular saying which goes, “Lucky are those who have time after work for pursuing their hobby, but luckiest are those for whom work itself is a hobby”