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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Timothy Bruce

Bib: 1885 •M •Age: 54

Clarkston, MI

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 1949
Top 43%
Gender (Male)
#0 / 1153
Masters (Masters Men)
#0 / 398
Top 48%
Age Group (M50-54)
#0 / 76
Top 41%
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
28:35
3.11 mi
Rank: #890
Start → 5K
28:35 | 9:13/mi
10K
57:38
6.21 mi
Rank: #925 (-35)
5K → 10K
29:03 | 9:22/mi
15K
1:27:28
9.32 mi
Rank: #950 (-25)
10K → 15K
29:50 | 9:37/mi
20K
1:56:25
12.43 mi
Rank: #932 (+18)
15K → 20K
28:57 | 9:20/mi
Half
2:03:14
13.10 mi
Rank: #933 (-1)
20K → Half
6:49 | 10:10/mi
25K
2:27:39
15.53 mi
Rank: #929 (+4)
Half → 25K
24:25 | 10:02/mi
30K
2:55:57
18.64 mi
Rank: #918 (+11)
25K → 30K
28:18 | 9:07/mi
35K
3:33:44
21.75 mi
Rank: #905 (+13)
30K → 35K
37:47 | 12:10/mi
25.2M
4:08:55
25.20 mi
Rank: #863 (+42)
35K → 25.2M
35:11 | 10:12/mi
Finish
4:18:02
26.22 mi
Rank: #845 (+18)
25.2M → Finish
9:07 | 8:57/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:03:14
Pace9:25 /mi
2nd Half
Distance13.12 mi
Time2:14:48
Pace10:17 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:11:0028:359:1328:35
9:13
-
10K
6.21 mi08:40:0357:389:1729:03
9:22
+0:09
15K
9.32 mi09:09:531:27:289:2429:50
9:37
+0:15
20K
12.43 mi09:38:501:56:259:2328:57
9:20
-0:17
Half
13.10 mi09:45:392:03:149:256:49
10:10
+0:50
25K
15.53 mi10:10:042:27:399:3124:25
10:02
-0:08
30K
18.64 mi10:38:222:55:579:2728:18
9:07
-0:55
35K
21.75 mi11:16:093:33:449:5037:47
12:10
+3:03
25.2M
25.20 mi11:51:204:08:559:5335:11
10:12
-1:58
Finish
26.22 mi12:00:274:18:029:519:07
8:57
-1:15

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

8:57 /mi

Average Pace

9:51 /mi

Slowest Pace

12:10 /mi

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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

37:25

15% of race

Time at Steady Pace

2:20:50

55% of race

Time at Slower Pace

1:19:47

31% of race

Average Pace: 9:50 /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 mi08:11:0028:359:1328:35
9:13
#890
10K
6.21 mi08:40:0357:389:1729:03
9:22
#925
15K
9.32 mi09:09:531:27:289:2429:50
9:37
#950
20K
12.43 mi09:38:501:56:259:2328:57
9:20
#932
Half
13.10 mi09:45:392:03:149:256:49
10:10
#933
25K
15.53 mi10:10:042:27:399:3124:25
10:02
#929
30K
18.64 mi10:38:222:55:579:2728:18
9:07
#918
35K
21.75 mi11:16:093:33:449:5037:47
12:10
#905
25.2M
25.20 mi11:51:204:08:559:5335:11
10:12
#863
Finish
26.22 mi12:00:274:18:029:519:07
8:57
#845
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 mi890634351011(Top 52%)699(Top 61%)36(Top 47%)
10K6.21 mi3.10 mi925-35653-1935944(Top 48%)665(Top 58%)35(Top 46%)
15K9.32 mi3.11 mi950-25669-16351011(Top 52%)699(Top 61%)36(Top 47%)
20K12.43 mi3.11 mi932+18655+1433+2887(Top 46%)629(Top 55%)31(Top 41%)
Half13.10 mi0.67 mi933-165533912(Top 47%)644(Top 56%)33(Top 43%)
25K15.53 mi2.43 mi929+4654+133938(Top 48%)652(Top 57%)35(Top 46%)
30K18.64 mi3.11 mi918+11642+1232+1976(Top 50%)655(Top 57%)41(Top 54%)
35K21.75 mi3.11 mi905+13621+2134-2949(Top 49%)612(Top 53%)44(Top 58%)
25.2M25.20 mi3.45 mi863+42593+2833+1685(Top 35%)442(Top 38%)26(Top 34%)
Finish26.22 mi1.02 mi845+18577+1631+2577(Top 30%)379(Top 33%)21(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×1
+26ft-31ft

Overall

1011

Males

699

M50-54

36

5K→10K

3.1 - 6.2 mi

Top 48%
×2
+38ft-17ft

Overall

944

Males

665

M50-54

35

10K→15K

6.2 - 9.3 mi

Top 52%
×2
+26ft-44ft

Overall

1011

Males

699

M50-54

36

15K→20K

9.3 - 12.4 mi

Top 46%
×1
+35ft-22ft

Overall

887

Males

629

M50-54

31

20K→Half

12.4 - 13.1 mi

Top 47%
×1
+7ft-13ft

Overall

912

Males

644

M50-54

33

Half→25K

13.1 - 15.5 mi

Top 48%
×2
+48ft-19ft

Overall

938

Males

652

M50-54

35

25K→30K

15.5 - 18.6 mi

Top 50%
×2
+38ft-52ft

Overall

976

Males

655

M50-54

41

30K→35K

18.6 - 21.8 mi

Top 49%
×2
+39ft-39ft

Overall

949

Males

612

M50-54

44

35K→25.2M

21.8 - 25.2 mi

Top 35%
×3
+57ft-58ft

Overall

685

Males

442

M50-54

26

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×1
+17ft-12ft

Overall

577

Males

379

M50-54

21

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
183
Passed By
138
Net Change
+45
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#890
5K → 10K1247-35#890#925
10K → 15K328-25#925#950
15K → 20K213+18#950#932
20K → Half56-1#932#933
Half → 25K1814+4#933#929
25K → 30K2110+11#929#918
30K → 35K3623+13#918#905
35K → 25.2M486+42#905#863
25.2M → Finish191+18#863#845
TOTALS183138+45
📊

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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