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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Joseph Norrish

Bib: 1801 •M •Age: 25

Norfolk, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Age Group (M25-29)
#0 / 240
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
33:28
3.11 mi
Rank: #1468
Start → 5K
33:28 | 10:47/mi
10K
1:06:08
6.21 mi
Rank: #1407 (+61)
5K → 10K
32:40 | 10:31/mi
15K
1:38:23
9.32 mi
Rank: #1362 (+45)
10K → 15K
32:15 | 10:23/mi
20K
2:10:35
12.43 mi
Rank: #1336 (+26)
15K → 20K
32:12 | 10:22/mi
Half
2:18:31
13.10 mi
Rank: #1332 (+4)
20K → Half
7:56 | 11:50/mi
25K
2:53:11
15.53 mi
Rank: #1458 (-126)
Half → 25K
34:40 | 14:14/mi
30K
3:30:00
18.64 mi
Rank: #1519 (-61)
25K → 30K
36:49 | 11:52/mi
35K
4:24:36
21.75 mi
Rank: #1601 (-82)
30K → 35K
54:36 | 17:35/mi
25.2M
5:19:31
25.20 mi
Rank: #1653 (-52)
35K → 25.2M
54:55 | 15:55/mi
Finish
5:33:53
26.22 mi
Rank: #1659 (-6)
25.2M → Finish
14:22 | 14:06/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:18:31
Pace10:35 /mi
2nd Half
Distance13.12 mi
Time3:15:22
Pace14:54 /mi
📊Positive Split: 41.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:14:1333:2810:4733:28
10:47
-
10K
6.21 mi08:46:531:06:0810:3932:40
10:31
-0:16
15K
9.32 mi09:19:081:38:2310:3432:15
10:23
-0:08
20K
12.43 mi09:51:202:10:3510:3132:12
10:22
-0:01
Half
13.10 mi09:59:162:18:3110:357:56
11:50
+1:28
25K
15.53 mi10:33:562:53:1111:0934:40
14:14
+2:24
30K
18.64 mi11:10:453:30:0011:1636:49
11:52
-2:22
35K
21.75 mi12:05:214:24:3612:1054:36
17:35
+5:43
25.2M
25.20 mi13:00:165:19:3112:4154:55
15:55
-1:40
Finish
26.22 mi13:14:385:33:5312:4514:22
14:06
-1:49

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

10:22 /mi

Average Pace

12:45 /mi

Slowest Pace

17:35 /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

1:37:07

29% of race

Time at Steady Pace

1:18:13

23% of race

Time at Slower Pace

2:38:33

47% of race

Average Pace: 12:44 /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 mi08:14:1333:2810:4733:28
10:47
#1468
10K
6.21 mi08:46:531:06:0810:3932:40
10:31
#1407
15K
9.32 mi09:19:081:38:2310:3432:15
10:23
#1362
20K
12.43 mi09:51:202:10:3510:3132:12
10:22
#1336
Half
13.10 mi09:59:162:18:3110:357:56
11:50
#1332
25K
15.53 mi10:33:562:53:1111:0934:40
14:14
#1458
30K
18.64 mi11:10:453:30:0011:1636:49
11:52
#1519
35K
21.75 mi12:05:214:24:3612:1054:36
17:35
#1601
25.2M
25.20 mi13:00:165:19:3112:4154:55
15:55
#1653
Finish
26.22 mi13:14:385:33:5312:4514:22
14:06
#1659
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
5K3.11 mi3.11 mi14689411951291(Top 66%)858(Top 74%)182(Top 76%)
10K6.21 mi3.10 mi1407+61913+28193+21360(Top 70%)896(Top 78%)188(Top 78%)
15K9.32 mi3.11 mi1362+45896+17190+31291(Top 66%)858(Top 74%)182(Top 76%)
20K12.43 mi3.11 mi1336+26876+20185+51257(Top 64%)831(Top 72%)174(Top 73%)
Half13.10 mi0.67 mi1332+4870+6184+11448(Top 74%)921(Top 80%)192(Top 80%)
25K15.53 mi2.43 mi1458-126936-66195-111777(Top 91%)1075(Top 93%)227(Top 95%)
30K18.64 mi3.11 mi1519-61962-26203-81648(Top 85%)1002(Top 87%)209(Top 87%)
35K21.75 mi3.11 mi1601-82998-36212-91792(Top 92%)1068(Top 93%)226(Top 94%)
25.2M25.20 mi3.45 mi1653-521020-22215-31817(Top 93%)1076(Top 93%)220(Top 92%)
Finish26.22 mi1.02 mi1659-61023-32151796(Top 92%)1069(Top 93%)224(Top 93%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×1
+26ft-31ft

Overall

1291

Males

858

M25-29

182

5K→10K

3.1 - 6.2 mi

Top 70%
×2
+38ft-17ft

Overall

1360

Males

896

M25-29

188

10K→15K

6.2 - 9.3 mi

Top 66%
×2
+26ft-44ft

Overall

1291

Males

858

M25-29

182

15K→20K

9.3 - 12.4 mi

Top 64%
×1
+35ft-22ft

Overall

1257

Males

831

M25-29

174

20K→Half

12.4 - 13.1 mi

Top 74%
×1
+7ft-13ft

Overall

1448

Males

921

M25-29

192

Half→25K

13.1 - 15.5 mi

Top 91%
×2
+48ft-19ft

Overall

1777

Males

1075

M25-29

227

25K→30K

15.5 - 18.6 mi

Top 85%
×2
+38ft-52ft

Overall

1648

Males

1002

M25-29

209

30K→35K

18.6 - 21.8 mi

Top 92%
×2
+39ft-39ft

Overall

1792

Males

1068

M25-29

226

35K→25.2M

21.8 - 25.2 mi

Top 93%
×3
+57ft-58ft

Overall

1817

Males

1076

M25-29

220

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×1
+17ft-12ft

Overall

1796

Males

1069

M25-29

224

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
180
Passed By
371
Net Change
-191
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1468
5K → 10K7312+61#1468#1407
10K → 15K538+45#1407#1362
15K → 20K304+26#1362#1336
20K → Half128+4#1336#1332
Half → 25K1127-126#1332#1458
25K → 30K869-61#1458#1519
30K → 35K183-82#1519#1601
35K → 25.2M254-52#1601#1653
25.2M → Finish06-6#1653#1659
TOTALS180371-191
📊

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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