Handicap (Incl. Overtime) 20.5 in Basketball — Explained
Handicap (Incl. Overtime) 20.5 is a point spread betting option where one team is given a +20.5 advantage or -20.5 disadvantage, and the result includes overtime scores.
This type of bet is used when there is a big difference in team strength, so bookmakers balance it by adding or subtracting points.
What Does 20.5 Mean?
- The 20.5 is the spread (margin)
- The .5 eliminates a draw (no push possible)
- “Incl. Overtime” means:
Final result includes any overtime played
How It Works
There are always two options:
1. Favorite Team (-20.5)
- This team must win by 21 points or more
2. Underdog Team (+20.5)
- This team can:
- Win the game, OR
- Lose by 20 points or less
Simple Formula
- Favorite wins bet if:
(Final Score Difference) > 20.5 - Underdog wins bet if:
(Final Score Difference) ≤ 20.5
Examples
Example 1: Betting on Favorite (-20.5)
- Match: Lakers vs Pistons
- You pick: Lakers -20.5
Final Score:
- Lakers 120 – 95 Pistons
- Difference = 25 points
25> 20.5 → You WIN
Another scenario:
- Lakers 110 – 95 Pistons
- Difference = 15 points
15< 20.5 → You LOSE
Example 2: Betting on Underdog (+20.5)
- You pick: Pistons +20.5
Final Score:
- Lakers 110 – 95 Pistons
- Difference = 15
Pistons “+20.5” → 95 + 20.5 = 115.5
115.5 > 110 → You WIN
Another scenario:
- Lakers 125 – 100 Pistons
- Difference = 25
👉 25 > 20.5 → You LOSE
Example with Overtime
- End of regular time: 100–100
- After OT: 120–110
Final difference = 10
Overtime counts → bet is settled using 120–110
Key Betting Tips
1. Be Careful with Big Handicaps
- 20.5 is a very large spread
- Favorites may relax once they’re comfortably ahead
2. Underdogs Cover More Often
- Even if they lose, they can still cover +20.5
- Good for betting on weaker teams with fighting spirit
3. Check Team Motivation
- Strong teams may:
- Rotate players
- Rest stars
This reduces chances of covering -20.5
4. Look at Recent Form
- Check:
- Average winning margin
- Head-to-head results
- If a team rarely wins by 20+, avoid -20.5
5. Garbage Time Matters
- Late in the game, benches play
- Underdogs may score easy points → helps +20.5 bettors
6. Consider Game Type
- League games: safer
- Friendly/preseason: unpredictable → avoid big spreads
Summary
- -20.5 (Favorite): Must win by 21+ points
- +20.5 (Underdog): Can lose by 20 or less (or win)
- Incl. Overtime: Final score after OT counts
This market is all about margin, not just winning

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