What is Pierson, Kenneth L's FIDE rating?

Pierson, Kenneth L's current standard FIDE rating is 1628.

What is Pierson, Kenneth L's world ranking?

Pierson, Kenneth L is currently ranked #136,390 in the world (standard rating).

What is Pierson, Kenneth L's ranking in United States of America?

Pierson, Kenneth L is currently ranked #4098 in United States of America.

What is Pierson, Kenneth L's continental ranking?

Pierson, Kenneth L is currently ranked #16,772 in their continent.

What is Pierson, Kenneth L's ranking in the 70-75 category?

Pierson, Kenneth L is ranked #110 in United States of America in the 70-75 age group.

What is Pierson, Kenneth L's all-time highest FIDE rating?

Pierson, Kenneth L's all-time peak standard rating is 1690.

When did Pierson, Kenneth L receive their first FIDE rating?

Pierson, Kenneth L first appeared in the FIDE rating list in 2022.

Which federation does Pierson, Kenneth L represent?

Pierson, Kenneth L represents United States of America (USA).

How old is Pierson, Kenneth L?

Pierson, Kenneth L was born in 1954 and is 72 years old.

When did Pierson, Kenneth L reach their peak rating?

Pierson, Kenneth L reached their peak standard rating of 1690 in 2024, at age 70.

PK

Pierson, Kenneth L

🇺🇸

FIDE 30997771· Male· United States of America· Born in 1954

Kenneth L Pierson, a 72-year-old American player, is rated 1628. He has held steady between 1600 and 1650 for 23 months. 12 rated games in the past year. Recent standard appearances include 26th Annual Pittsburgh Open - U2100, 2nd Chess For Cure Open - U2000, and 18th Continental Chess Cleveland Open - U2100. His peak of 1690 was reached at age 70 (Mar 2024).

Current rating

1628

Standard

Rpd—·Blz—

All-time high

1690

−62 pts below
Mar 2024 · age 70

Activity

12

games / yr avg. · ≈1/mo

10 past 12 mo · ≈1/mo
classical only
Moderately active

Signature stat

#136,398

#136,398 · players worldwide · of 218,279

Career timeline

9 entries

2025

91st American 70-75 player

at age 71 · rated 1640

Apr 2025

2024

K-factor lowered to 20

at age 70

Aug 2024

Best 12-month gain (+197 Elo)

1493 → 1690

Mar 2024

Crossed 1600

at age 70

Mar 2024

Re-crossed 1500

at age 70

Mar 2024

All-time peak 1690

at age 70 · −62 from today

Mar 2024

Standard rating history

Peak

FIDE title

Threshold

First rated

FIDE recal.

Activity & highlights

Top opponent

vs Carlos M. Guzman Ortiz 1,912

2nd Chess For Cure Open - U2000 · Jun 2025 · +6.6 Elo

Evolution

-6

1634 → 1628

Tournaments

2

17 games

Score

2/ 1711.8%

1W7D9L

Top 3 wins

1.[D]vsCarlos M. Guzman Ortiz1,912·2nd Chess For Cure Open - U2000·R1·+6.6

2.[D]vsThomas Warren Hunt1,774·19th Continental Chess Cleveland Open - U2100·R3·+4.0

3.[D]vsScott Robinson Jr1,768·26th Annual Pittsburgh Open - U2100·R5·+3.8

Top 3 losses

1.[L]vsOm Chatterjee1,582·19th Continental Chess Cleveland Open - U2100·R5·-11.3

2.[L]vsMaxwell Chung1,662·2nd Chess For Cure Open - U2000·R3·-9.2

3.[L]vsCharithra C Arvind1,672·19th Continental Chess Cleveland Open - U2100·R4·-8.7

Last 12 months — tournaments

2 events

Event	Date	Score	Rank	Perf	Δ Elo
26th Annual Pittsburgh Open - U2100 Open Swiss	Jul 2025	1.5/5	#21	1587	-5.6	▸
2nd Chess For Cure Open - U2000 Swiss	Jun 2025	0.5/2	#12	1596	-2.2	▸

Rankings

/

United States of America

#4,098

out of 5,510 players

Americas

#16,772

in continent

World

#136,390

out of 400,000+

National ranking

Europe & World

Europe

World

United States of America

1	🇺🇸Nakamura, Hikaru	2,792
1	🇺🇸Caruana, Fabiano	2,792
3	🇺🇸So, Wesley	2,753
4	🇺🇸Niemann, Hans Moke	2,742
5	🇺🇸Dominguez Perez, Leinier	2,732
6	🇺🇸Aronian, Levon	2,724
7	🇺🇸Liang, Awonder	2,696
7	🇺🇸Sevian, Samuel	2,696
9	🇺🇸Xiong, Jeffery	2,656
10	🇺🇸Robson, Ray	2,653
...
4098	🇺🇸Pierson, Kenneth L	1,628

Americas

1	🇺🇸Nakamura, Hikaru	2,792
1	🇺🇸Caruana, Fabiano	2,792
3	🇺🇸So, Wesley	2,753
4	🇺🇸Niemann, Hans Moke	2,742
5	🇺🇸Dominguez Perez, Leinier	2,732
6	🇺🇸Aronian, Levon	2,724
7	🇺🇸Liang, Awonder	2,696
7	🇺🇸Sevian, Samuel	2,696
9	🇺🇸Xiong, Jeffery	2,656
10	🇺🇸Robson, Ray	2,653
...
16772	🇺🇸Pierson, Kenneth L	1,628

World

1	🇳🇴Carlsen, Magnus	2,841
2	🇺🇸Nakamura, Hikaru	2,792
2	🇺🇸Caruana, Fabiano	2,792
4	🇺🇿Abdusattorov, Nodirbek	2,777
4	🇺🇿Sindarov, Javokhir	2,777
6	🇩🇪Keymer, Vincent	2,767
7	🇳🇱Giri, Anish	2,764
8	🇮🇳Erigaisi Arjun	2,761
9	🇺🇸So, Wesley	2,753
9	🇨🇳Wei, Yi	2,753
...
136390	🇺🇸Pierson, Kenneth L	1,628