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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Julie Esson

Bib: 3286 •F •Age: 50

Muskegon, MI

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Female)
#0 / 791
Masters (Masters Women)
#0 / 277
Age Group (F50-54)
Official
#0 / 46
Calculated (F50-54)
#0 / 46
Race Day Weather
71°/61°F
overcast 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
36:57
3.11 mi
Rank: #1764
Start → 5K
36:57 | 11:54/mi
10K
1:15:31
6.21 mi
Rank: #1777 (-13)
5K → 10K
38:34 | 12:25/mi
15K
1:53:16
9.32 mi
Rank: #1767 (+10)
10K → 15K
37:45 | 12:10/mi
20K
2:30:27
12.43 mi
Rank: #1746 (+21)
15K → 20K
37:11 | 11:59/mi
Half
2:38:39
13.10 mi
Rank: #1725 (+21)
20K → Half
8:12 | 12:14/mi
25K
3:08:41
15.53 mi
Rank: #1699 (+26)
Half → 25K
30:02 | 12:20/mi
30K
3:43:00
18.64 mi
Rank: #1674 (+25)
25K → 30K
34:19 | 11:03/mi
35K
4:30:05
21.75 mi
Rank: #1648 (+26)
30K → 35K
47:05 | 15:10/mi
25.2M
5:17:02
25.20 mi
Rank: #1632 (+16)
35K → 25.2M
46:57 | 13:37/mi
Finish
5:30:45
26.22 mi
Rank: #1637 (-5)
25.2M → Finish
13:43 | 13:28/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:38:39
Pace12:07 /mi
2nd Half
Distance13.12 mi
Time2:52:06
Pace13:08 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:21:2536:5711:5436:57
11:54
-
10K
6.21 mi08:59:591:15:3112:1038:34
12:25
+0:31
15K
9.32 mi09:37:441:53:1612:1037:45
12:10
-0:15
20K
12.43 mi10:14:552:30:2712:0737:11
11:59
-0:11
Half
13.10 mi10:23:072:38:3912:078:12
12:14
+0:15
25K
15.53 mi10:53:093:08:4112:0930:02
12:20
+0:06
30K
18.64 mi11:27:283:43:0011:5834:19
11:03
-1:17
35K
21.75 mi12:14:334:30:0512:2647:05
15:10
+4:07
25.2M
25.20 mi13:01:305:17:0212:3546:57
13:37
-1:33
Finish
26.22 mi13:15:135:30:4512:3813:43
13:28
-0:09

Checkpoint Splits Visualizations

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

📈Pace 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

11:03 /mi

Average Pace

12:37 /mi

Slowest Pace

15:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

34:19

10% of race

Time at Steady Pace

3:08:41

57% of race

Time at Slower Pace

1:47:45

33% of race

Average Pace: 12:37 /mi

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Faster pace (< avg)
Steady pace (≈ 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...
0mi6.6mi13.1mi19.7mi26.2mi
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 mi08:21:2536:5711:5436:57
11:54
#1764
10K
6.21 mi08:59:591:15:3112:1038:34
12:25
#1777
15K
9.32 mi09:37:441:53:1612:1037:45
12:10
#1767
20K
12.43 mi10:14:552:30:2712:0737:11
11:59
#1746
Half
13.10 mi10:23:072:38:3912:078:12
12:14
#1725
25K
15.53 mi10:53:093:08:4112:0930:02
12:20
#1699
30K
18.64 mi11:27:283:43:0011:5834:19
11:03
#1674
35K
21.75 mi12:14:334:30:0512:2647:05
15:10
#1648
25.2M
25.20 mi13:01:305:17:0212:3546:57
13:37
#1632
Finish
26.22 mi13:15:135:30:4512:3813:43
13:28
#1637
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi1764674391734(Top 89%)655(Top 83%)38(Top 83%)
10K6.21 mi3.10 mi1777-13680-641-21788(Top 92%)687(Top 87%)42(Top 91%)
15K9.32 mi3.11 mi1767+10670+1040+11734(Top 89%)655(Top 83%)38(Top 83%)
20K12.43 mi3.11 mi1746+21662+839+11660(Top 85%)628(Top 79%)36(Top 78%)
Half13.10 mi0.67 mi1725+21655+7391546(Top 79%)567(Top 72%)31(Top 67%)
25K15.53 mi2.43 mi1699+26641+1438+11533(Top 79%)574(Top 73%)32(Top 70%)
30K18.64 mi3.11 mi1674+25633+835+31501(Top 77%)568(Top 72%)31(Top 67%)
35K21.75 mi3.11 mi1648+26620+1336-11519(Top 78%)597(Top 75%)36(Top 78%)
25.2M25.20 mi3.45 mi1632+16618+2361546(Top 79%)616(Top 78%)36(Top 78%)
Finish26.22 mi1.02 mi1637-5621-3361745(Top 90%)697(Top 88%)37(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×1
+26ft-31ft

Overall

1734

Females

655

F50-54

38

5K→10K

3.1 - 6.2 mi

Top 92%
×2
+38ft-17ft

Overall

1788

Females

687

F50-54

42

10K→15K

6.2 - 9.3 mi

Top 89%
×2
+26ft-44ft

Overall

1734

Females

655

F50-54

38

15K→20K

9.3 - 12.4 mi

Top 85%
×1
+35ft-22ft

Overall

1660

Females

628

F50-54

36

20K→Half

12.4 - 13.1 mi

Top 79%
×1
+7ft-13ft

Overall

1546

Females

567

F50-54

31

Half→25K

13.1 - 15.5 mi

Top 79%
×2
+48ft-19ft

Overall

1533

Females

574

F50-54

32

25K→30K

15.5 - 18.6 mi

Top 77%
×2
+38ft-52ft

Overall

1501

Females

568

F50-54

31

30K→35K

18.6 - 21.8 mi

Top 78%
×2
+39ft-39ft

Overall

1519

Females

597

F50-54

36

35K→25.2M

21.8 - 25.2 mi

Top 79%
×3
+57ft-58ft

Overall

1546

Females

616

F50-54

36

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×1
+17ft-12ft

Overall

1745

Females

697

F50-54

37

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
196
Passed By
69
Net Change
+127
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1764
5K → 10K1730-13#1764#1777
10K → 15K199+10#1777#1767
15K → 20K232+21#1767#1746
20K → Half210+21#1746#1725
Half → 25K348+26#1725#1699
25K → 30K283+25#1699#1674
30K → 35K337+26#1674#1648
35K → 25.2M204+16#1648#1632
25.2M → Finish16-5#1632#1637
TOTALS19669+127
📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

BQ

Boston Qualifying analysis available

Finisher Certificate

Download and share your official race completion certificate

🏆 Finisher Certificate
Download or share your official race finisher certificate
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Your certificate is generated on-demand and can be shared on social media or saved for your records

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
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