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David Kaffka

M · Age 53 · Citrus Heights, CA

Runner Index

75.7

Regional Class

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

#1

Run to Feed the Hungry

10K · 2025-11-27

77.3% AG

#2

California International Marathon

Marathon · 2025-12-07

77.0% AG

#3

California International Marathon

Marathon · 2024-12-08

72.7% 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

19:47

10K

40:17

Half Marathon

01:28:07

Marathon

03:02:50

Races

4

Total Distance

99.4 km

Best Age-Graded

77.3%

Best Distance

10K

Overall Podiums

0

Overall Wins

0

AG Podiums

1

AG Wins

0

Trophy Case

🏆

Best Overall Finish

54th Overall at Run to Feed the Hungry · 2025-11-27

🥇

Best Age-Graded

77.3%Regional Class
⚡

Fastest Times

5K: 26:4410K: 39:04Marathon: 02:58:01

David Kaffka

Citrus Heights, CA · Age 53

Runner Index

75.7

Regional Class

Total Races

4

Total KM

99.4 km

Career Podiums

1

Favorite Distance

5K

PB at Favorite

26:44

Best Year

2025 (3 races)

runclax — Community Local Athletes Index

Personal Bests

5K

26:44

Barks & Brews 5K

2025-05-26

55.5% AG

10K

39:04

Run to Feed the Hungry

2025-11-27

77.3% AG

Marathon

02:58:01

California International Marathon

2025-12-07

77.0% AG

Age-Graded Trend

Year by Year

YearRacesBest Age-GradedBest TimeDistance
2024172.7%03:06:5442.2 km
2025377.3%26:4457.2 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
California International Marathon2025-12-07Marathon02:58:01122877.0%
Run to Feed the Hungry2025-11-2710K39:0454277.3%
Barks & Brews 5K2025-05-265K26:441821055.5%
California International Marathon2024-12-08Marathon03:06:54158072.7%