Table:
Round

Date

Circuit

Winning driver (TA2)

Winning vehicle (TA2)

Winning driver (TA1)

Winning vehicle (TA1)

1

May 21

Sears Point

Greg Pickett

Chevrolet Corvette

Gene Bothello

Chevrolet Corvette

2

June 4

Westwood

Ludwig Heimrath

Porsche 935

Nick Engels

Chevrolet Corvette

3

June 11

Portland

Tuck Thomas

Chevrolet Monza

Bob Matkowitch

Chevrolet Corvette

4

June 25

Mont-Tremblant

Monte Sheldon

Porsche 935

Bob Tullius

Jaguar XJS

5

July 8

Watkins Glen‡

Hal Shaw, Jr.
Monte Shelton

Porsche 935

Brian Fuerstenau
Bob Tullius

Jaguar XJS

6

August 13

Brainerd

Jerry Hansen

Chevrolet Monza

Bob Tullius

Jaguar XJS

7

August 19

Mosport

Greg Pickett

Chevrolet Corvette

Bob Tullius

Jaguar XJS

8

September 4

Road America

Greg Pickett

Chevrolet Corvette

Bob Tullius

Jaguar XJS

9

October 8

Laguna Seca

Greg Pickett

Chevrolet Corvette

Bob Tullius

Jaguar XJS

10

November 5

Mexico City

Ludwig Heimrath

Porsche 935

Bob Tullius

Jaguar XJS

Tell me the row and column numbers of the shown table. Your final answer should be in the JSON structure, formatted as {"row_number": "m", "column_number": "n"}.

There are 11 rows and 7 columns in the table. So, the final answer is {"row_number": "11", "column_number": "7"}.