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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

John Robert Peterson

Bib: 720 •M •Age: 26

Virginia Bch, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 9%
Gender (Male)
#0 / 1153
Top 12%
Age Group (M25-29)
#0 / 240
Top 15%
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
25:22
3.11 mi
Rank: #408
Start → 5K
25:22 | 8:10/mi
10K
50:00
6.21 mi
Rank: #372 (+36)
5K → 10K
24:38 | 7:56/mi
15K
1:14:33
9.32 mi
Rank: #336 (+36)
10K → 15K
24:33 | 7:55/mi
20K
1:38:24
12.43 mi
Rank: #305 (+31)
15K → 20K
23:51 | 7:41/mi
Half
1:43:45
13.10 mi
Rank: #296 (+9)
20K → Half
5:21 | 7:59/mi
25K
2:02:15
15.53 mi
Rank: #277 (+19)
Half → 25K
18:30 | 7:36/mi
30K
2:22:49
18.64 mi
Rank: #247 (+30)
25K → 30K
20:34 | 6:38/mi
35K
2:48:31
21.75 mi
Rank: #213 (+34)
30K → 35K
25:42 | 8:17/mi
25.2M
3:14:45
25.20 mi
Rank: #186 (+27)
35K → 25.2M
26:14 | 7:37/mi
Finish
3:22:23
26.22 mi
Rank: #182 (+4)
25.2M → Finish
7:38 | 7:30/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via Half
Distance13.10 mi
Time1:43:45
Pace7:56 /mi
2nd Half✓ Faster
Distance13.12 mi
Time1:38:38
Pace7:32 /mi
📊Negative Split: 4.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:59:3825:228:1025:22
8:10
-
10K
6.21 mi08:24:1650:008:0324:38
7:56
-0:14
15K
9.32 mi08:48:491:14:338:0024:33
7:55
-0:01
20K
12.43 mi09:12:401:38:247:5623:51
7:41
-0:14
Half
13.10 mi09:18:011:43:457:565:21
7:59
+0:18
25K
15.53 mi09:36:312:02:157:5318:30
7:36
-0:23
30K
18.64 mi09:57:052:22:497:4020:34
6:38
-0:58
35K
21.75 mi10:22:472:48:317:4525:42
8:17
+1:39
25.2M
25.20 mi10:49:013:14:457:4426:14
7:37
-0:40
Finish
26.22 mi10:56:393:22:237:447:38
7:30
-0:07

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

6:38 /mi

Average Pace

7:43 /mi

Slowest Pace

8:17 /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

1:36:47

48% of race

Time at Steady Pace

54:32

27% of race

Time at Slower Pace

51:04

25% of race

Average Pace: 7:43 /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 mi07:59:3825:228:1025:22
8:10
#408
10K
6.21 mi08:24:1650:008:0324:38
7:56
#372
15K
9.32 mi08:48:491:14:338:0024:33
7:55
#336
20K
12.43 mi09:12:401:38:247:5623:51
7:41
#305
Half
13.10 mi09:18:011:43:457:565:21
7:59
#296
25K
15.53 mi09:36:312:02:157:5318:30
7:36
#277
30K
18.64 mi09:57:052:22:497:4020:34
6:38
#247
35K
21.75 mi10:22:472:48:317:4525:42
8:17
#213
25.2M
25.20 mi10:49:013:14:457:4426:14
7:37
#186
Finish
26.22 mi10:56:393:22:237:447:38
7:30
#182
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 mi40830861300(Top 15%)233(Top 20%)50(Top 21%)
10K6.21 mi3.10 mi372+36288+2060+1304(Top 16%)236(Top 20%)52(Top 22%)
15K9.32 mi3.11 mi336+36258+3056+4300(Top 15%)233(Top 20%)50(Top 21%)
20K12.43 mi3.11 mi305+31236+2250+6246(Top 13%)194(Top 17%)43(Top 18%)
Half13.10 mi0.67 mi296+9228+848+2187(Top 10%)154(Top 13%)37(Top 15%)
25K15.53 mi2.43 mi277+19217+1147+1161(Top 8%)136(Top 12%)33(Top 14%)
30K18.64 mi3.11 mi247+30193+2445+2148(Top 8%)122(Top 11%)30(Top 13%)
35K21.75 mi3.11 mi213+34165+2838+7105(Top 5%)89(Top 8%)26(Top 11%)
25.2M25.20 mi3.45 mi186+27144+2135+394(Top 5%)75(Top 7%)20(Top 8%)
Finish26.22 mi1.02 mi182+4141+335172(Top 9%)131(Top 11%)34(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×1
+26ft-31ft

Overall

300

Males

233

M25-29

50

5K→10K

3.1 - 6.2 mi

Top 16%
×2
+38ft-17ft

Overall

304

Males

236

M25-29

52

10K→15K

6.2 - 9.3 mi

Top 15%
×2
+26ft-44ft

Overall

300

Males

233

M25-29

50

15K→20K

9.3 - 12.4 mi

Top 13%
×1
+35ft-22ft

Overall

246

Males

194

M25-29

43

20K→Half

12.4 - 13.1 mi

Top 10%
×1
+7ft-13ft

Overall

187

Males

154

M25-29

37

Half→25K

13.1 - 15.5 mi

Top 8%
×2
+48ft-19ft

Overall

161

Males

136

M25-29

33

25K→30K

15.5 - 18.6 mi

Top 8%
×2
+38ft-52ft

Overall

148

Males

122

M25-29

30

30K→35K

18.6 - 21.8 mi

Top 5%
×2
+39ft-39ft

Overall

105

Males

89

M25-29

26

35K→25.2M

21.8 - 25.2 mi

Top 5%
×3
+57ft-58ft

Overall

94

Males

75

M25-29

20

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×1
+17ft-12ft

Overall

172

Males

131

M25-29

34

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
232
Passed By
6
Net Change
+226
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#408
5K → 10K382+36#408#372
10K → 15K371+36#372#336
15K → 20K310+31#336#305
20K → Half90+9#305#296
Half → 25K212+19#296#277
25K → 30K300+30#277#247
30K → 35K351+34#247#213
35K → 25.2M270+27#213#186
25.2M → Finish40+4#186#182
TOTALS2326+226
📊

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.

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