43:57

5000 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

45:56

4900 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

42:15

4800 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

43:31

4700 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

41:25

4600 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

45:16

4500 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

47:14

4400 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

43:01

4300 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

43:21

4200 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

38:11

4100 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

46:16

4000 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

41:39

3900 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

37:30

3800 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

38:24

3715 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

40:59

3600 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

34:16

3500 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

30:49

3400 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

31:49

3300 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

31:35

3200 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

30:13

3141 Digits of Pi World Record for 9-year-olds memorized & orally recited by boy named Hero Vietson.

30:38

3100 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

27:20

3000 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

27:14

2900 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

23:57

2800 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

25:43

2702 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

25:12

2604 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

21:06

2501 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

20:48

2401 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

21:58

2301 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

18:35

2222 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

17:58

2112 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

17:01

2001 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

14:48

1900 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

15:10

1800 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

14:17

1703 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

11:07

1601 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

10:58

1515 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

09:20

1401 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

08:46

1301 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

10:06

1201 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

08:40

1114 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

07:32

1001 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

07:10

901 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

02:28

102 Digits of Pi memorized and orally recited by boy named Hero Vietson. Please see below descripton

03:17

201 Digits of Pi memorized and orally recited by boy named Hero Vietson. Please see below descripton

04:59

701 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

04:15

301 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

04:34

401 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

04:08

501 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

04:21

601 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.

06:21

801 Digits of Pi memorized and orally recited by a nine-year-old boy named Hero Vietson.