Brian Mazurski

Bib: 4213β€’Mβ€’Age: 40

Westmont, IL

Chicago 13.1 logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 7907
Top 44%
Gender (Male)
#0 / 3976
Masters (Masters Men)
#0 / 1380
Age Group (M40-44)
Official
#0 / 480
Calculated (M40-44)
#0 / 480
Race Day Weather
79Β°/69Β°F
scattered clouds

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
28:52
3.11 mi
Rank: #3078
Start β†’ 5K
28:52 | 9:18/mi
8K
45:58
4.97 mi
Rank: #3047 (+31)
5K β†’ 8K
17:06 | 9:11/mi
10K
57:50
6.21 mi
Rank: #3106 (-59)
8K β†’ 10K
11:52 | 9:33/mi
15K
1:29:09
9.32 mi
Rank: #3317 (-211)
10K β†’ 15K
31:19 | 10:05/mi
FINISH
2:08:08
13.11 mi
Rank: #3439 (-122)
15K β†’ FINISH
38:59 | 10:18/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:38:1328:529:1828:52
9:18
-
8K
4.97 mi07:55:1945:589:1517:06
9:11
-0:07
10K
6.21 mi08:07:1157:509:1911:52
9:33
+0:22
15K
9.32 mi08:38:301:29:099:3431:19
10:05
+0:32
FINISH
13.11 mi09:17:292:08:089:4738:59
10:18
+0:13

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

9:11 /mi

Average Pace

9:46 /mi

Slowest Pace

10:18 /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

1:29:09

70% of race

Time at Steady Pace

38:59

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:46 /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 mi07:38:1328:529:1828:52
9:18
#3078
8K
4.97 mi07:55:1945:589:1517:06
9:11
#3047
10K
6.21 mi08:07:1157:509:1911:52
9:33
#3106
15K
9.32 mi08:38:301:29:099:3431:19
10:05
#3317
FINISH
13.11 mi09:17:292:08:089:4738:59
10:18
#3439
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi307821472613715(Top 47%)2472(Top 62%)293(Top 61%)
8K4.97 mi1.86 mi3047+312143+4258+33045(Top 39%)2145(Top 54%)257(Top 54%)
10K6.21 mi1.24 mi3106-592175-32261-33362(Top 43%)2302(Top 58%)270(Top 56%)
15K9.32 mi3.11 mi3317-2112283-108271-103715(Top 47%)2472(Top 62%)293(Top 61%)
FINISH13.11 mi3.79 mi3439-1222328-45281-103838(Top 49%)2469(Top 62%)290(Top 60%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
Γ—2
+11ft-21ft

Overall

3715

Males

2472

M40-44

293

5K→8K

3.1 - 5.0 mi

Top 39%
Γ—2
+13ft-3ft

Overall

3045

Males

2145

M40-44

257

8K→10K

5.0 - 6.2 mi

Top 43%
Γ—1
+8ft-7ft

Overall

3362

Males

2302

M40-44

270

10K→15K

6.2 - 9.3 mi

Top 47%
Γ—1
+19ft-22ft

Overall

3715

Males

2472

M40-44

293

15K→FINISH

9.3 - 13.1 mi

Top 49%
Γ—1
+24ft-20ft

Overall

3838

Males

2469

M40-44

290

Is this your race? Claiming it gets you a full AI race analysis β€” free, sent to you by email.

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
294
Passed By
655
Net Change
-361
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#3078
5K β†’ 8K11685+31#3078#3047
8K β†’ 10K47106-59#3047#3106
10K β†’ 15K57268-211#3106#3317
15K β†’ FINISH74196-122#3317#3439
TOTALS294655-361

Is this your race? Claiming it gets you a full AI race analysis β€” free, sent to you by email.

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