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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Robert Tew

Bib: 1371 •M •Age: 46

Chesapeake, VA

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Masters (Masters Men)
#0 / 398
Age Group (M45-49)
Official
#0 / 89
Calculated (M45-49)
#0 / 89
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
33:20
3.11 mi
Rank: #1454
Start → 5K
33:20 | 10:44/mi
10K
1:08:35
6.21 mi
Rank: #1515 (-61)
5K → 10K
35:15 | 11:21/mi
15K
1:45:40
9.32 mi
Rank: #1597 (-82)
10K → 15K
37:05 | 11:57/mi
20K
2:16:33
12.43 mi
Rank: #1470 (+127)
15K → 20K
30:53 | 9:57/mi
Half
2:24:35
13.10 mi
Rank: #1460 (+10)
20K → Half
8:02 | 11:59/mi
25K
2:54:56
15.53 mi
Rank: #1488 (-28)
Half → 25K
30:21 | 12:28/mi
30K
3:28:34
18.64 mi
Rank: #1501 (-13)
25K → 30K
33:38 | 10:50/mi
35K
4:08:30
21.75 mi
Rank: #1430 (+71)
30K → 35K
39:56 | 12:52/mi
25.2M
4:47:07
25.20 mi
Rank: #1371 (+59)
35K → 25.2M
38:37 | 11:12/mi
Finish
4:56:37
26.22 mi
Rank: #1343 (+28)
25.2M → Finish
9:30 | 9:20/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:24:35
Pace11:03 /mi
2nd Half
Distance13.12 mi
Time2:32:03
Pace11:36 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:05:3533:2010:4433:20
10:44
-
10K
6.21 mi08:40:501:08:3511:0335:15
11:21
+0:37
15K
9.32 mi09:17:551:45:4011:2137:05
11:57
+0:36
20K
12.43 mi09:48:482:16:3311:0030:53
9:57
-2:00
Half
13.10 mi09:56:502:24:3511:038:02
11:59
+2:02
25K
15.53 mi10:27:112:54:5611:1630:21
12:28
+0:29
30K
18.64 mi11:00:493:28:3411:1233:38
10:50
-1:38
35K
21.75 mi11:40:454:08:3011:2639:56
12:52
+2:02
25.2M
25.20 mi12:19:224:47:0711:2438:37
11:12
-1:40
Finish
26.22 mi12:28:524:56:3711:209:30
9:20
-1:52

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

9:20 /mi

Average Pace

11:19 /mi

Slowest Pace

12:52 /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

1:13:43

25% of race

Time at Steady Pace

1:47:30

36% of race

Time at Slower Pace

1:55:24

39% of race

Average Pace: 11:19 /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 mi08:05:3533:2010:4433:20
10:44
#1454
10K
6.21 mi08:40:501:08:3511:0335:15
11:21
#1515
15K
9.32 mi09:17:551:45:4011:2137:05
11:57
#1597
20K
12.43 mi09:48:482:16:3311:0030:53
9:57
#1470
Half
13.10 mi09:56:502:24:3511:038:02
11:59
#1460
25K
15.53 mi10:27:112:54:5611:1630:21
12:28
#1488
30K
18.64 mi11:00:493:28:3411:1233:38
10:50
#1501
35K
21.75 mi11:40:454:08:3011:2639:56
12:52
#1430
25.2M
25.20 mi12:19:224:47:0711:2438:37
11:12
#1371
Finish
26.22 mi12:28:524:56:3711:209:30
9:20
#1343
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi1454934751688(Top 87%)1058(Top 92%)81(Top 91%)
10K6.21 mi3.10 mi1515-61968-3477-21592(Top 82%)1011(Top 88%)79(Top 89%)
15K9.32 mi3.11 mi1597-821018-5079-21688(Top 87%)1058(Top 92%)81(Top 91%)
20K12.43 mi3.11 mi1470+127946+7276+31117(Top 57%)763(Top 66%)56(Top 63%)
Half13.10 mi0.67 mi1460+10938+8761486(Top 76%)947(Top 82%)77(Top 87%)
25K15.53 mi2.43 mi1488-28953-1577-11556(Top 80%)967(Top 84%)78(Top 88%)
30K18.64 mi3.11 mi1501-1395376+11460(Top 75%)900(Top 78%)72(Top 81%)
35K21.75 mi3.11 mi1430+71904+4972+41133(Top 58%)712(Top 62%)60(Top 67%)
25.2M25.20 mi3.45 mi1371+59866+3868+4964(Top 49%)592(Top 51%)50(Top 56%)
Finish26.22 mi1.02 mi1343+28852+1467+1696(Top 36%)443(Top 38%)40(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×1
+26ft-31ft

Overall

1688

Males

1058

M45-49

81

5K→10K

3.1 - 6.2 mi

Top 82%
×2
+38ft-17ft

Overall

1592

Males

1011

M45-49

79

10K→15K

6.2 - 9.3 mi

Top 87%
×2
+26ft-44ft

Overall

1688

Males

1058

M45-49

81

15K→20K

9.3 - 12.4 mi

Top 57%
×1
+35ft-22ft

Overall

1117

Males

763

M45-49

56

20K→Half

12.4 - 13.1 mi

Top 76%
×1
+7ft-13ft

Overall

1486

Males

947

M45-49

77

Half→25K

13.1 - 15.5 mi

Top 80%
×2
+48ft-19ft

Overall

1556

Males

967

M45-49

78

25K→30K

15.5 - 18.6 mi

Top 75%
×2
+38ft-52ft

Overall

1460

Males

900

M45-49

72

30K→35K

18.6 - 21.8 mi

Top 58%
×2
+39ft-39ft

Overall

1133

Males

712

M45-49

60

35K→25.2M

21.8 - 25.2 mi

Top 49%
×3
+57ft-58ft

Overall

964

Males

592

M45-49

50

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×1
+17ft-12ft

Overall

696

Males

443

M45-49

40

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
353
Passed By
242
Net Change
+111
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1454
5K → 10K1172-61#1454#1515
10K → 15K890-82#1515#1597
15K → 20K1270+127#1597#1470
20K → Half133+10#1470#1460
Half → 25K1644-28#1460#1488
25K → 30K1730-13#1488#1501
30K → 35K743+71#1501#1430
35K → 25.2M590+59#1430#1371
25.2M → Finish280+28#1371#1343
TOTALS353242+111
📊

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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