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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Caleb Paxton

Bib: 682 •M •Age: 39

Alexandria, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Top 11%
Gender (Male)
#0 / 1153
Top 14%
Age Group (M35-39)
Official
#0 / 178
Calculated (M35-39)
#0 / 178
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
23:53
3.11 mi
Rank: #259
Start → 5K
23:53 | 7:42/mi
10K
48:39
6.21 mi
Rank: #284 (-25)
5K → 10K
24:46 | 7:59/mi
15K
1:12:34
9.32 mi
Rank: #271 (+13)
10K → 15K
23:55 | 7:42/mi
20K
1:36:47
12.43 mi
Rank: #271
15K → 20K
24:13 | 7:48/mi
Half
1:42:30
13.10 mi
Rank: #273 (-2)
20K → Half
5:43 | 8:32/mi
25K
2:02:11
15.53 mi
Rank: #275 (-2)
Half → 25K
19:41 | 8:05/mi
30K
2:24:01
18.64 mi
Rank: #266 (+9)
25K → 30K
21:50 | 7:02/mi
35K
2:51:59
21.75 mi
Rank: #245 (+21)
30K → 35K
27:58 | 9:01/mi
25.2M
3:19:18
25.20 mi
Rank: #227 (+18)
35K → 25.2M
27:19 | 7:55/mi
Finish
3:26:56
26.22 mi
Rank: #219 (+8)
25.2M → Finish
7:38 | 7:30/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:42:30
Pace7:50 /mi
2nd Half
Distance13.12 mi
Time1:44:27
Pace7:58 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:54:2423:537:4223:53
7:42
-
10K
6.21 mi08:19:1048:397:5024:46
7:59
+0:17
15K
9.32 mi08:43:051:12:347:4823:55
7:42
-0:17
20K
12.43 mi09:07:181:36:477:4824:13
7:48
+0:06
Half
13.10 mi09:13:011:42:307:505:43
8:32
+0:44
25K
15.53 mi09:32:422:02:117:5219:41
8:05
-0:27
30K
18.64 mi09:54:322:24:017:4421:50
7:02
-1:03
35K
21.75 mi10:22:302:51:597:5527:58
9:01
+1:59
25.2M
25.20 mi10:49:493:19:187:5527:19
7:55
-1:06
Finish
26.22 mi10:57:273:26:567:547:38
7:30
-0:25

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

7:02 /mi

Average Pace

7:54 /mi

Slowest Pace

9:01 /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

29:28

14% of race

Time at Steady Pace

2:23:47

69% of race

Time at Slower Pace

33:41

16% of race

Average Pace: 7:54 /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 mi07:54:2423:537:4223:53
7:42
#259
10K
6.21 mi08:19:1048:397:5024:46
7:59
#284
15K
9.32 mi08:43:051:12:347:4823:55
7:42
#271
20K
12.43 mi09:07:181:36:477:4824:13
7:48
#271
Half
13.10 mi09:13:011:42:307:505:43
8:32
#273
25K
15.53 mi09:32:422:02:117:5219:41
8:05
#275
30K
18.64 mi09:54:322:24:017:4421:50
7:02
#266
35K
21.75 mi10:22:302:51:597:5527:58
9:01
#245
25.2M
25.20 mi10:49:493:19:187:5527:19
7:55
#227
Finish
26.22 mi10:57:273:26:567:547:38
7:30
#219
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
5K3.11 mi3.11 mi25920235250(Top 13%)200(Top 17%)32(Top 18%)
10K6.21 mi3.10 mi284-25222-2039-4316(Top 16%)247(Top 21%)45(Top 25%)
15K9.32 mi3.11 mi271+13215+736+3250(Top 13%)200(Top 17%)32(Top 18%)
20K12.43 mi3.11 mi271213+236282(Top 14%)222(Top 19%)36(Top 20%)
Half13.10 mi0.67 mi273-2214-137-1323(Top 17%)248(Top 22%)39(Top 22%)
25K15.53 mi2.43 mi275-2215-138-1284(Top 15%)219(Top 19%)40(Top 22%)
30K18.64 mi3.11 mi266+9209+637+1246(Top 13%)187(Top 16%)30(Top 17%)
35K21.75 mi3.11 mi245+21186+2329+8231(Top 12%)171(Top 15%)30(Top 17%)
25.2M25.20 mi3.45 mi227+18171+1527+2145(Top 7%)110(Top 10%)20(Top 11%)
Finish26.22 mi1.02 mi219+8164+727173(Top 9%)132(Top 11%)23(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×1
+26ft-31ft

Overall

250

Males

200

M35-39

32

5K→10K

3.1 - 6.2 mi

Top 16%
×2
+38ft-17ft

Overall

316

Males

247

M35-39

45

10K→15K

6.2 - 9.3 mi

Top 13%
×2
+26ft-44ft

Overall

250

Males

200

M35-39

32

15K→20K

9.3 - 12.4 mi

Top 14%
×1
+35ft-22ft

Overall

282

Males

222

M35-39

36

20K→Half

12.4 - 13.1 mi

Top 17%
×1
+7ft-13ft

Overall

323

Males

248

M35-39

39

Half→25K

13.1 - 15.5 mi

Top 15%
×2
+48ft-19ft

Overall

284

Males

219

M35-39

40

25K→30K

15.5 - 18.6 mi

Top 13%
×2
+38ft-52ft

Overall

246

Males

187

M35-39

30

30K→35K

18.6 - 21.8 mi

Top 12%
×2
+39ft-39ft

Overall

231

Males

171

M35-39

30

35K→25.2M

21.8 - 25.2 mi

Top 7%
×3
+57ft-58ft

Overall

145

Males

110

M35-39

20

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×1
+17ft-12ft

Overall

173

Males

132

M35-39

23

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
91
Passed By
51
Net Change
+40
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#259
5K → 10K227-25#259#284
10K → 15K130+13#284#271
15K → 20K220#271#271
20K → Half24-2#271#273
Half → 25K24-2#273#275
25K → 30K156+9#275#266
30K → 35K276+21#266#245
35K → 25.2M191+18#245#227
25.2M → Finish91+8#227#219
TOTALS9151+40
📊

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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