# Svetloslav Novoselski: Runner

> Svetloslav Novoselski is a senior full-stack software engineer based in Sofia, Bulgaria, who builds and ships his own web products, and an amateur road runner who races 5K to 20K. His site, novoselski.net, has two sides: Engineer (products, bio, principles) and Runner (personal bests, race results, upcoming races, free running tools).

Source: https://novoselski.net/runner  
Last updated: 2026-10-11

Road racing. Chasing splits, one race at a time.

## About

Running is where the rest of my life gets sorted out. Early alarms, long Sundays, and the occasional race where the training either shows up or it doesn't.

Below is everything I've done and everything that's next: times, results, tools and the photos worth keeping.

## Personal bests

Fastest time at each distance so far.

| Distance | Time | Average pace |
| --- | --- | --- |
| 5K | 24:29 | 4:54 /km |
| 10K | 49:16 | 4:56 /km |

## Recent race results

| Date | Race | Distance | Time | Average pace |
| --- | --- | --- | --- | --- |
| 2026-10-11 | Wizz Air Sofia Marathon | 10K | 51:40 | 5:10 /km |
| 2026-10-03 | UniRun Blagoevgrad | 10.42K | 53:12 | 5:06 /km |
| 2026-09-27 | Run and Become Chocolate 5K & 10K | 10K | 49:16 | 4:56 /km |
| 2026-08-08 | Run and Become Sunrise 5K & 10K | 10K | 50:44 | 5:04 /km |
| 2026-06-14 | Decathlon Run | 10K | 52:32 | 5:15 /km |

## Upcoming races

No races on the calendar right now. Focusing on training and coming back stronger soon.

## Free tools for runners

- [Pace Calculator](https://novoselski.net/runner/pace-calculator): Pace, speed, distance and finish time, all linked. Change any one of them and the other three update instantly, in kilometres or miles. (Free, No sign-up)

## Follow the training

Strava: https://www.strava.com/athletes/154117091  
Instagram: https://instagram.com/svetlinovoselski