UDRS (Umpire Decision Review System), also known as DRS, uses technology to review close umpiring decisions in cricket matches. It consists of Hawk-Eye/Eagle Eye for ball tracking, Hot Spot for detecting bat-ball contact, and Snickometer for sounds of contact. UDRS aims to reduce incorrect decisions and increase accuracy and fairness, though it introduces technological interruptions. Teams are allowed a maximum of two unsuccessful reviews per innings, and the system is reset after 80 overs in test matches.
2. TOPIC: UDRS or DRS
Stands for (umpire Decision Review System) OR
(Decision Review System).
Basically a technology used in sport of cricket to review
controversial decision made by on-field umpire.
3. We are going to discuss…
Brief history
Number of reviewing options a team have
Components & their working
Advantages and disadvantages.
4. History
Initially tested in test cricket (india vs. srilanka) in 2008.
In test ckt,ICC launched it officially for 1st time on 24 Nov, 2009 played b/w
(pak & newzealand).
In ODI ckt, was launched officially for 1st time in Jan,2011 during England's
tour to Australia.
Initially ICC made it mandatory in all international matches, but later on its
use was decided upon the approval of both teams.
To increase accuracy, amendments have also been made to it time to time.
5. No, of reviewing options
Either of the opponent teams can have max, of 2 unsuccessful options
In case, if both the reviews of a teams proves wrong, then they are left on
the decision of on-field umpire.
I n test ckt, after 80 over's, the reviews resets.
Beside this if the on-field umpire is doubting about a decision, he might
also call for review by itself.
Note that whenever a player has to call for review, he has to make “T”
with has hands
6. Components & working
Composed of three parts.
1. HAWK EYE / EAGLE EYE:
2. HOTSPOT:
3. REAL TIME SNICKOMETER:
HAWK EYE / EAGLE EYE:
A ball tracking technology that plots ball trajectory to check whether the
ball is going to hit the stumps or not..! It is like to check for LBW outs.
Exp: let D=distance from strike end,
(if D>2.5m OR travels more than 40cm before it is faced,)…is always
declared not out.
8. 2. Hotspot
An infrared imaging system that illumines the spot where the ball comes
in contact with bat or pad
Shortly, it checks out for the narrow contacts of ball with bat or pad
Its accuracy is about 90-95%
New high resolution cameras have been in use for the sack of accuracy
9. 3. REAL TIME SNICKMETER
A system having an installed microphone in stumps so that to collect the
sound produced by minor contacts when the ball comes in contact with
the bat,
Shortly, it checks out the result of caught by case and makes it clear
whether the ball came in contact with the bat or not.
It is like drawing a graph of sound waves.
10. Advantages & Disadvantages
Purity has been brought into cricket.
Rights of each player has been reserved.
Interest of viewers have been enhanced in cricket.
Sports & technology is getting mixed.
It is like that cricket is losing its natural flavor because of technological
interruption.