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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

William Prince

Bib: 983 •M •Age: 23

Norfolk, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 50%
Gender (Male)
#0 / 1153
Age Group (M20-24)
Official
#0 / 127
Calculated (M20-24)
#0 / 127
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
28:23
3.11 mi
Rank: #847
Start → 5K
28:23 | 9:09/mi
10K
55:56
6.21 mi
Rank: #769 (+78)
5K → 10K
27:33 | 8:53/mi
15K
1:23:54
9.32 mi
Rank: #765 (+4)
10K → 15K
27:58 | 9:01/mi
20K
1:51:26
12.43 mi
Rank: #750 (+15)
15K → 20K
27:32 | 8:52/mi
Half
1:57:47
13.10 mi
Rank: #737 (+13)
20K → Half
6:21 | 9:28/mi
25K
2:20:41
15.53 mi
Rank: #741 (-4)
Half → 25K
22:54 | 9:25/mi
30K
2:47:13
18.64 mi
Rank: #754 (-13)
25K → 30K
26:32 | 8:33/mi
35K
3:32:56
21.75 mi
Rank: #886 (-132)
30K → 35K
45:43 | 14:43/mi
25.2M
4:17:22
25.20 mi
Rank: #981 (-95)
35K → 25.2M
44:26 | 12:53/mi
Finish
4:26:58
26.22 mi
Rank: #971 (+10)
25.2M → Finish
9:36 | 9:26/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:57:47
Pace9:00 /mi
2nd Half
Distance13.12 mi
Time2:29:12
Pace11:23 /mi
📊Positive Split: 26.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:04:5628:239:0928:23
9:09
-
10K
6.21 mi08:32:2955:569:0127:33
8:53
-0:16
15K
9.32 mi09:00:271:23:549:0127:58
9:01
+0:08
20K
12.43 mi09:27:591:51:268:5927:32
8:52
-0:09
Half
13.10 mi09:34:201:57:479:006:21
9:28
+0:36
25K
15.53 mi09:57:142:20:419:0422:54
9:25
-0:03
30K
18.64 mi10:23:462:47:138:5926:32
8:33
-0:52
35K
21.75 mi11:09:293:32:569:4845:43
14:43
+6:10
25.2M
25.20 mi11:53:554:17:2210:1344:26
12:53
-1:50
Finish
26.22 mi12:03:314:26:5810:129:36
9:26
-3:27

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

8:33 /mi

Average Pace

10:11 /mi

Slowest Pace

14:43 /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

0:00

0% of race

Time at Steady Pace

2:56:49

66% of race

Time at Slower Pace

1:30:09

34% of race

Average Pace: 10:11 /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 mi08:04:5628:239:0928:23
9:09
#847
10K
6.21 mi08:32:2955:569:0127:33
8:53
#769
15K
9.32 mi09:00:271:23:549:0127:58
9:01
#765
20K
12.43 mi09:27:591:51:268:5927:32
8:52
#750
Half
13.10 mi09:34:201:57:479:006:21
9:28
#737
25K
15.53 mi09:57:142:20:419:0422:54
9:25
#741
30K
18.64 mi10:23:462:47:138:5926:32
8:33
#754
35K
21.75 mi11:09:293:32:569:4845:43
14:43
#886
25.2M
25.20 mi11:53:554:17:2210:1344:26
12:53
#981
Finish
26.22 mi12:03:314:26:5810:129:36
9:26
#971
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-24Seg. OverallSeg. MalesSeg. M20-24
5K3.11 mi3.11 mi84760270772(Top 40%)553(Top 48%)68(Top 54%)
10K6.21 mi3.10 mi769+78549+5366+4706(Top 36%)508(Top 44%)63(Top 50%)
15K9.32 mi3.11 mi765+4548+167-1772(Top 40%)553(Top 48%)68(Top 54%)
20K12.43 mi3.11 mi750+15539+968-1710(Top 36%)519(Top 45%)69(Top 54%)
Half13.10 mi0.67 mi737+13533+667+1663(Top 34%)484(Top 42%)64(Top 50%)
25K15.53 mi2.43 mi741-4532+168-1741(Top 38%)534(Top 46%)74(Top 58%)
30K18.64 mi3.11 mi754-13544-1265+3773(Top 40%)538(Top 47%)71(Top 56%)
35K21.75 mi3.11 mi886-132610-6673-81455(Top 75%)886(Top 77%)102(Top 80%)
25.2M25.20 mi3.45 mi981-95651-4177-41385(Top 71%)836(Top 73%)99(Top 78%)
Finish26.22 mi1.02 mi971+10643+877741(Top 38%)472(Top 41%)63(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×1
+26ft-31ft

Overall

772

Males

553

M20-24

68

5K→10K

3.1 - 6.2 mi

Top 36%
×2
+38ft-17ft

Overall

706

Males

508

M20-24

63

10K→15K

6.2 - 9.3 mi

Top 40%
×2
+26ft-44ft

Overall

772

Males

553

M20-24

68

15K→20K

9.3 - 12.4 mi

Top 36%
×1
+35ft-22ft

Overall

710

Males

519

M20-24

69

20K→Half

12.4 - 13.1 mi

Top 34%
×1
+7ft-13ft

Overall

663

Males

484

M20-24

64

Half→25K

13.1 - 15.5 mi

Top 38%
×2
+48ft-19ft

Overall

741

Males

534

M20-24

74

25K→30K

15.5 - 18.6 mi

Top 40%
×2
+38ft-52ft

Overall

773

Males

538

M20-24

71

30K→35K

18.6 - 21.8 mi

Top 75%
×2
+39ft-39ft

Overall

1455

Males

886

M20-24

102

35K→25.2M

21.8 - 25.2 mi

Top 71%
×3
+57ft-58ft

Overall

1385

Males

836

M20-24

99

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×1
+17ft-12ft

Overall

741

Males

472

M20-24

63

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
175
Passed By
299
Net Change
-124
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#847
5K → 10K824+78#847#769
10K → 15K1713+4#769#765
15K → 20K194+15#765#750
20K → Half141+13#750#737
Half → 25K1216-4#737#741
25K → 30K1326-13#741#754
30K → 35K3135-132#754#886
35K → 25.2M5100-95#886#981
25.2M → Finish100+10#981#971
TOTALS175299-124
📊

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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