Grzegorz Persak

Bib: 921β€’Mβ€’Age: 50

Roselle, IL

Masters
Chicago 13.1 logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 9529
Gender (Male)
#0 / 4757
Masters (Masters Men)
#0 / 1644
Age Group (M50-54)
#0 / 266
Race Day Weather
60Β°/50Β°F
clear sky

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
29:18
3.11 mi
Rank: #4166
Start β†’ 5K
29:18 | 9:26/mi
8K
46:44
4.97 mi
Rank: #4151 (+15)
5K β†’ 8K
17:26 | 9:22/mi
10K
58:44
6.21 mi
Rank: #4225 (-74)
8K β†’ 10K
12:00 | 9:40/mi
15K
1:29:24
9.32 mi
Rank: #4309 (-84)
10K β†’ 15K
30:40 | 9:53/mi
FINISH
2:10:48
13.11 mi
Rank: #4836 (-527)
15K β†’ FINISH
41:24 | 10:56/mi
Is this your race?

Claim it β€” get your free Race Performance Report

An AI deep-dive into your pacing, rankings, and passing β€” built from your real splits and emailed to you, free.

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:44:4829:189:2629:18
9:26
-
8K
4.97 mi08:02:1446:449:2517:26
9:22
-0:04
10K
6.21 mi08:14:1458:449:2812:00
9:40
+0:18
15K
9.32 mi08:44:541:29:249:3630:40
9:53
+0:13
FINISH
13.11 mi09:26:182:10:489:5941:24
10:56
+1:03

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:22 /mi

Average Pace

9:59 /mi

Slowest Pace

10:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:29:24

68% of race

Time at Steady Pace

41:24

32% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:59 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi07:44:4829:189:2629:18
9:26
#4166
8K
4.97 mi08:02:1446:449:2517:26
9:22
#4151
10K
6.21 mi08:14:1458:449:2812:00
9:40
#4225
15K
9.32 mi08:44:541:29:249:3630:40
9:53
#4309
FINISH
13.11 mi09:26:182:10:489:5941:24
10:56
#4836
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi416628281434602(Top 48%)3027(Top 64%)155(Top 58%)
8K4.97 mi1.86 mi4151+152835-7142+14222(Top 44%)2860(Top 60%)146(Top 55%)
10K6.21 mi1.24 mi4225-742865-30140+24515(Top 47%)3012(Top 63%)152(Top 57%)
15K9.32 mi3.11 mi4309-842912-47145-54602(Top 48%)3027(Top 64%)155(Top 58%)
FINISH13.11 mi3.79 mi4836-5273138-226159-145945(Top 62%)3545(Top 75%)185(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
Γ—2
+11ft-21ft

Overall

4602

Males

3027

M50-54

155

5K→8K

3.1 - 5.0 mi

Top 44%
Γ—2
+13ft-3ft

Overall

4222

Males

2860

M50-54

146

8K→10K

5.0 - 6.2 mi

Top 47%
Γ—1
+8ft-7ft

Overall

4515

Males

3012

M50-54

152

10K→15K

6.2 - 9.3 mi

Top 48%
Γ—1
+19ft-22ft

Overall

4602

Males

3027

M50-54

155

15K→FINISH

9.3 - 13.1 mi

Top 62%
Γ—1
+24ft-20ft

Overall

5945

Males

3545

M50-54

185

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
267
Passed By
937
Net Change
-670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#4166
5K β†’ 8K117102+15#4166#4151
8K β†’ 10K39113-74#4151#4225
10K β†’ 15K85169-84#4225#4309
15K β†’ FINISH26553-527#4309#4836
TOTALS267937-670
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

Loading...

🎨Heatmap Timeline

Loading...

πŸ”„Passing Circle

Loading...

🌊Position Flow

Loading...

πŸƒRace Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Chicago Event Management

Chicago Event Management