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Horse Racing Bankroll Calculator

Calculate optimal bet sizing, daily budgets, and bankroll management for horse racing. Use Kelly Criterion and risk analysis to protect your betting bankroll.

Formula:Unit Size = Bankroll × Unit %

Bankroll Plan

Unit Size
$20
2% of bankroll
Daily Max
$100
10% of bankroll

Budget Breakdown

Straight Bets
$70/day
Exotic Bets
$30/day
Weekly Budget
$200
Monthly Budget
$866

Kelly Criterion

⚠️ Based on your win rate and odds, Kelly suggests no bet (negative edge)

Risk Assessment

Risk of RuinModerate
Your bankroll covers ~10 sessions at max daily budget

Expected Value (if edge exists)

Per Bet
-$5
Weekly
-$60
Monthly
-$260
Break-even win rate at these odds: 23.4%
$

Amount dedicated to horse racing betting

Your Betting Performance (for Kelly Criterion)

%

Your historical win percentage

Average payout when you win

Unit Sizing Guide

ConfidenceUnitsAmount
Standard Play1U$20
Strong Opinion2U$40
Best Bet3U$60

Quick Answer

Good bankroll management is the difference between recreational fun and going broke. Most experts recommend betting 1-3% of your bankroll per bet (your "unit"), and limiting daily losses to 5-15% of bankroll. This ensures you can survive inevitable losing streaks while capitalizing on winning ones.

Key Principles

Never Chase Losses

Set a daily stop-loss and stick to it. When you hit your limit, walk away. Tomorrow is another day.

Separate Exotic Budget

Exotic bets have higher variance. Allocate a specific portion for exotics so a bad Pick 4 doesn't destroy your entire day.

Adjust to Results

If your bankroll doubles, adjust units up. If it gets cut in half, adjust down. Never bet the same amount regardless of bankroll size.

Frequently Asked Questions

How much should I bet on a single horse race?

Most bankroll management systems recommend betting 1-3% of your bankroll per bet. For a $1,000 bankroll, that's $10-30 per bet. Conservative bettors stay at 1%, while more aggressive players might go to 3%.

What is unit betting in horse racing?

A "unit" is a standard bet size based on your bankroll. If your unit is 1% of a $1,000 bankroll, one unit = $10. This lets you scale bets based on confidence: 1 unit for normal plays, 2-3 units for strong opinions.

How does Kelly Criterion apply to horse racing?

Kelly Criterion calculates optimal bet size based on your edge and odds. Since most bettors don't have a true edge, fractional Kelly (25-50% of calculated Kelly) is recommended to reduce variance while still optimizing growth.

Should exotic bets have different sizing than straight bets?

Yes. Exotic bets (exacta, trifecta, Pick 4) have higher variance. Many pros allocate a smaller portion of bankroll to exotics (perhaps $50-100/day) while keeping straight bets at standard unit sizes.

Recreational

Regular

Serious

Weekend

Bankroll Plan

Unit Size
$20
2% of bankroll
Daily Max
$100
10% of bankroll

Budget Breakdown

Straight Bets
$70/day
Exotic Bets
$30/day
Weekly Budget
$200
Monthly Budget
$866

Kelly Criterion

⚠️ Based on your win rate and odds, Kelly suggests no bet (negative edge)

Risk Assessment

Risk of RuinModerate
Your bankroll covers ~10 sessions at max daily budget

Expected Value (if edge exists)

Per Bet
-$5
Weekly
-$60
Monthly
-$260
Break-even win rate at these odds: 23.4%