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runclaxCommunity Local Athletes Index · 5K · 10K · Half Marathon · MarathonSupport us

Tomasz Burny

M · Age 37 · Folsom, CA

Runner Index

54.8

Participant

Average of your best 3 races in the past 3 years (any distance, by age-graded performance).

#1

Urban Cow Weekend

Half Marathon · 2026-09-26

57.3% AG

#2

Urban Cow Weekend

Half Marathon · 2025-09-27

54.4% AG

#3

California International Marathon

Marathon · 2024-12-08

52.7% AG

Predicted Times

Based on your Runner Index — the average of your three best age-graded performances in the last 3 years. Times reflect your peak level, not a typical race day.

5K

24:09

10K

49:03

Half Marathon

01:46:40

Marathon

03:40:30

Races

5

Total Distance

147.7 km

Best Age-Graded

57.3%

Best Distance

Half Marathon

Trophy Case

🏆

Best Overall Finish

445th Overall at Urban Cow Weekend · 2025-09-27

🥇

Best Age-Graded

57.3%Participant
⚡

Fastest Times

Half Marathon: 01:42:00Marathon: 03:48:41

Tomasz Burny

Folsom, CA · Age 37

Runner Index

54.8

Participant

Total Races

5

Total KM

147.7 km

Career Podiums

0

Favorite Distance

Half Marathon

PB at Favorite

01:42:00

Best Year

2024 (2 races)

runclax — Community Local Athletes Index

Personal Bests

Half Marathon

01:42:00

Urban Cow Weekend

2026-09-26

57.3% AG

Marathon

03:48:41

California International Marathon

2024-12-08

52.7% AG

Age-Graded Trend

Year by Year

YearRacesBest Age-GradedBest TimeDistance
2024252.7%01:50:2063.3 km
2025254.4%01:47:0263.3 km
2026157.3%01:42:0021.1 km

Your peers

Runners close to you in age and ability, so you can line up your own little race series.

Race History

RaceDateDistanceTimeOverallAG PlaceAge-Graded
Urban Cow Weekend2026-09-26Half Marathon01:42:005038857.3%
California International Marathon2025-12-07Marathon03:58:10504450.7%
Urban Cow Weekend2025-09-27Half Marathon01:47:0244554.4%
California International Marathon2024-12-08Marathon03:48:41437952.7%
Urban Cow Weekend2024-10-05Half Marathon01:50:2048252.5%