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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Christopher Johnson

Bib: 1341 •M •Age: 40

Woodbridge, VA

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 1949
Top 25%
Gender (Male)
#0 / 1153
Top 31%
Masters (Masters Men)
#0 / 398
Top 29%
Age Group (M40-44)
Official
#0 / 120
Calculated (M40-44)
#0 / 120
Top 41%
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
28:07
3.11 mi
Rank: #799
Start → 5K
28:07 | 9:03/mi
10K
57:20
6.21 mi
Rank: #901 (-102)
5K → 10K
29:13 | 9:25/mi
15K
1:25:13
9.32 mi
Rank: #848 (+53)
10K → 15K
27:53 | 8:59/mi
20K
1:52:46
12.43 mi
Rank: #804 (+44)
15K → 20K
27:33 | 8:53/mi
Half
1:59:17
13.10 mi
Rank: #800 (+4)
20K → Half
6:31 | 9:43/mi
25K
2:21:48
15.53 mi
Rank: #777 (+23)
Half → 25K
22:31 | 9:15/mi
30K
2:45:25
18.64 mi
Rank: #706 (+71)
25K → 30K
23:37 | 7:37/mi
35K
3:14:54
21.75 mi
Rank: #589 (+117)
30K → 35K
29:29 | 9:30/mi
25.2M
3:43:19
25.20 mi
Rank: #500 (+89)
35K → 25.2M
28:25 | 8:14/mi
Finish
3:51:14
26.22 mi
Rank: #485 (+15)
25.2M → Finish
7:55 | 7:47/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via Half
Distance13.10 mi
Time1:59:17
Pace9:07 /mi
2nd Half✓ Faster
Distance13.12 mi
Time1:51:57
Pace8:32 /mi
📊Negative Split: 6.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:06:1128:079:0328:07
9:03
-
10K
6.21 mi08:35:2457:209:1429:13
9:25
+0:22
15K
9.32 mi09:03:171:25:139:0927:53
8:59
-0:26
20K
12.43 mi09:30:501:52:469:0527:33
8:53
-0:06
Half
13.10 mi09:37:211:59:179:076:31
9:43
+0:50
25K
15.53 mi09:59:522:21:489:0822:31
9:15
-0:28
30K
18.64 mi10:23:292:45:258:5323:37
7:37
-1:38
35K
21.75 mi10:52:583:14:548:5829:29
9:30
+1:53
25.2M
25.20 mi11:21:233:43:198:5228:25
8:14
-1:16
Finish
26.22 mi11:29:183:51:148:507:55
7:47
-0:27

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

7:37 /mi

Average Pace

8:50 /mi

Slowest Pace

9:43 /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

59:57

26% of race

Time at Steady Pace

1:46:04

46% of race

Time at Slower Pace

1:05:13

28% of race

Average Pace: 8:49 /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 mi08:06:1128:079:0328:07
9:03
#799
10K
6.21 mi08:35:2457:209:1429:13
9:25
#901
15K
9.32 mi09:03:171:25:139:0927:53
8:59
#848
20K
12.43 mi09:30:501:52:469:0527:33
8:53
#804
Half
13.10 mi09:37:211:59:179:076:31
9:43
#800
25K
15.53 mi09:59:522:21:489:0822:31
9:15
#777
30K
18.64 mi10:23:292:45:258:5323:37
7:37
#706
35K
21.75 mi10:52:583:14:548:5829:29
9:30
#589
25.2M
25.20 mi11:21:233:43:198:5228:25
8:14
#500
Finish
26.22 mi11:29:183:51:148:507:55
7:47
#485
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi79956971759(Top 39%)545(Top 47%)67(Top 56%)
10K6.21 mi3.10 mi901-102640-7176-5963(Top 49%)681(Top 59%)77(Top 64%)
15K9.32 mi3.11 mi848+53606+3473+3759(Top 39%)545(Top 47%)67(Top 56%)
20K12.43 mi3.11 mi804+44575+3167+6714(Top 37%)522(Top 45%)64(Top 53%)
Half13.10 mi0.67 mi800+4571+467786(Top 40%)564(Top 49%)66(Top 55%)
25K15.53 mi2.43 mi777+23558+1367683(Top 35%)492(Top 43%)60(Top 50%)
30K18.64 mi3.11 mi706+71511+4763+4412(Top 21%)309(Top 27%)40(Top 33%)
35K21.75 mi3.11 mi589+117424+8755+8311(Top 16%)226(Top 20%)33(Top 28%)
25.2M25.20 mi3.45 mi500+89359+6550+5208(Top 11%)150(Top 13%)19(Top 16%)
Finish26.22 mi1.02 mi485+15354+549+1239(Top 12%)177(Top 15%)20(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×1
+26ft-31ft

Overall

759

Males

545

M40-44

67

5K→10K

3.1 - 6.2 mi

Top 49%
×2
+38ft-17ft

Overall

963

Males

681

M40-44

77

10K→15K

6.2 - 9.3 mi

Top 39%
×2
+26ft-44ft

Overall

759

Males

545

M40-44

67

15K→20K

9.3 - 12.4 mi

Top 37%
×1
+35ft-22ft

Overall

714

Males

522

M40-44

64

20K→Half

12.4 - 13.1 mi

Top 40%
×1
+7ft-13ft

Overall

786

Males

564

M40-44

66

Half→25K

13.1 - 15.5 mi

Top 35%
×2
+48ft-19ft

Overall

683

Males

492

M40-44

60

25K→30K

15.5 - 18.6 mi

Top 21%
×2
+38ft-52ft

Overall

412

Males

309

M40-44

40

30K→35K

18.6 - 21.8 mi

Top 16%
×2
+39ft-39ft

Overall

311

Males

226

M40-44

33

35K→25.2M

21.8 - 25.2 mi

Top 11%
×3
+57ft-58ft

Overall

208

Males

150

M40-44

19

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×1
+17ft-12ft

Overall

239

Males

177

M40-44

20

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
439
Passed By
125
Net Change
+314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#799
5K → 10K6108-102#799#901
10K → 15K585+53#901#848
15K → 20K462+44#848#804
20K → Half84+4#804#800
Half → 25K274+23#800#777
25K → 30K710+71#777#706
30K → 35K1170+117#706#589
35K → 25.2M901+89#589#500
25.2M → Finish161+15#500#485
TOTALS439125+314
📊

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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